0 = 2x2 – 8x + 11
Solve the equation using quadratic formula.

Answers

Answer 1

Answer:

There are two solutions

1.x =(8-√152)/4=2-1/2√ 38 = -1.082

2.x =(8+√152)/4=2+1/2√ 38 = 5.082

Step-by-step explanation:


Related Questions

Sharon wants to open a checking account from which to pay bills. She wants online services, and a debit card, which both banks provide for free. Based upon past experience, she expects to accidentally overdraft the account 1 time per year, due to unexpected charges and miscommunications. She expects no 2nd copies of statements, and to use network ATMs 4 times per month with either bank. She has $3300 in an emergency savings account at First State Bank, and thinks that the balance will be enough to cover overdrafts in the future if automatic transfers are made when needed.

Answers

Answer:

a.No, Common Bank will save Sharon more money.

Step-by-step explanation:

There are two banks i.e. first state bank and the common bank that should be compared in the table depend upon the prices of both the banks

On seeing it we get to know that the first state bank would charged a fee on a monthly basis i.e. $4 while on the other hand the common bank has no fee on the monthly basis

Also the unsufficient bonds are more cheaper in the common bank if we compared with the first state bank

Moreover, the $7 is charged in the first state bank and $3 charged in the common bank.

Therefore the common bank would become cheaper

Hence, the correct option is a.

Answer:

Sharon wants to open a checking account from which to pay bills. She wants online services, and a debit card, which both banks provide for free. Based upon past experience, she expects to accidentally overdraft the account 1 time per year, due to unexpected charges and miscommunications. She expects no 2nd copies of statements, and to use network ATMs 4 times per month with either bank. She has $3300 in an emergency savings account at First State Bank, and thinks that the balance will be enough to cover overdrafts in the future if automatic transfers are made when needed.

A 4-column table with 5 rows. Column 1 is labeled First State Bank with entries monthly fee, non-sufficient funds fee, second copy of statement, network A T M usage, non-sufficient funds protection from a First State Bank savings account. Column 2 is labeled Description with entries 4 dollars, 36 dollars, 7 dollars, 3 dollars each transaction, 4 dollars on each day that a transfer occurs to cover an overdraft. Column 3 is labeled Common Bank with entries monthly fee, non-sufficient funds, second copy of statement, network A T M usage, non-sufficient funds protection from a Common Bank savings account. Column 4 is labeled Description with entries 0 dollars, 24 dollars, 4 dollars, 2 dollars each transaction, not offered with this account.

Based on the tables of fees, above, if Sharon chooses First State Bank, will it save her money over choosing Common Bank?

a.   No, Common Bank will save Sharon more money. <<<---Correct b.   Yes, First State Bank will save Sharon money. c.   No, First State Bank and Common Bank would have the same costs for Sharon. d.   No, costs cannot be estimated in advance, so this information cannot be used.

Step-by-step explanation:

Edge 2021

A dog-washing salon is filling up the tub to was a dog. When the employee got to the tub,
there were already 2 gallons of water in the tub. She will fill the tub at a rate of 3 gallons a
minute.

Answers

Answer:

If there was 2 gallons in the tub at the moment, it must mean that it has been 2/3 of a minute or 40 seconds.

The two rates would be 3:60 and 2:40 and so on 1:20

Step-by-step explanation:

Good luck! Hope this helps! <3

If the two remote interior angles of a triangle measure 60 degrees and 38 degrees , what is the measure of the exterior angle.

Answers

Answer:x + y + z = 180

Step-by-step explanation:

Compare the proportional relationships. Which represents the greatest price per pound of walnuts

Answers

Answer:

B. Weight

Price

The price per pound of walnuts is the slope or unit rates of the graphs, lines and equations

The greatest price per pound of walnuts is $14.00

(a) Cost of 1.5 bags is $12.99

The unit rate is calculated as:

[tex]\mathbf{Rate = \frac{Cost}{Bags}}[/tex]

So, we have:

[tex]\mathbf{Rate = \frac{\$12.99}{1.5}}[/tex]

[tex]\mathbf{Rate = \$8.66}[/tex]

The price per pound of walnuts is $8.66

(b) The table

From the table, we have the following points

[tex]\mathbf{(x,y) =(0.2,2.80)\ (0.4, 5.60)}[/tex]

The unit rate is calculated as:

[tex]\mathbf{Rate = \frac{y_2 - y_1}{x_2 - x_1}}[/tex]

So, we have:

[tex]\mathbf{Rate = \frac{5.60 - 2.80}{0.4 - 0.2}}[/tex]

[tex]\mathbf{Rate = 14}[/tex]

The price per pound of walnuts is $14.00

(c) The graph

From the table, we have the following points

[tex]\mathbf{(x,y) =(0,0)\ (1, 11)}[/tex]

The unit rate is calculated as:

[tex]\mathbf{Rate = \frac{y_2 - y_1}{x_2 - x_1}}[/tex]

So, we have:

[tex]\mathbf{Rate = \frac{11 - 0}{1 - 0}}[/tex]

[tex]\mathbf{Rate = 11}[/tex]

The price per pound of walnuts is $11.00

By comparison, the greatest price per pound of walnuts is $14.00

Read more about rates at:

https://brainly.com/question/18065083

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil. What is the probability that the land has oil and the test predicts it?

A.
0.09

B.
0.11

C.
0.36

D.
0.44

Answers

In this case you the probabilities can be multiplied similarly to if you flipped a coin twice. .45 * .80 = .36

Answer:

0.36

Step-by-step explanation:

0.45 x 0.80

= 0.36

If a car is traveling 75 miles per hour, how many feet will it travel in 10 seconds ?

Answers

The answwe is 1100 hope this helps

If 1 mile= 5280 feet, So If a car is traveling 75 miles per hour, then it is travelling 1100 feet in 10 seconds.

What is 1 mile in ____ feet?

1 mile= 5280 feet

A car is traveling 75 miles per hour, we need to find how many feet it travel in 10 sec.

1 hour = 60*60 = 3600 seconds

75 miles: 1 hour

75 miles: 3600 seconds

75/3600 miles: 3600/3600 seconds

1 second: 1/48 mile

1/48 miles = (1/48)*5280 = 110 feet

So you're going 110 ft per second. In other words, the car travels 110 feet in 1 second.

For 10 seconds 110*10=1100.

Therefore 1100 feet will car travel in 10 seconds.

To learn more on miles and feet click: https://brainly.com/question/2566034

#SPJ2

if the crab 5ft below sea level and the cliff is 3ft above the sea level what is the distance between them?

Answers

8ft is the dstance between them.

5+3 = 8

There are 4 blue and 6 red marbles in a box. Two marbles are drawn at random without replacement. What is the probability having two blue marbles drawn?

Answers

Answer:

Probability having two blue marbles(Without replacement) = 2/15

Step-by-step explanation:

Given:

Number of blue marble = 4

Number of  marble = 6

Find:

Probability having two blue marbles(Without replacement)

Computation:

Probability of first marble = 4 / 10

Probability of second marble = 3 / 9

Probability having two blue marbles(Without replacement) = [4/10][3/9]

Probability having two blue marbles(Without replacement) = 2/15

The square below represents one whole.
What percent is represented by the shaded area?

Answers

No. of total boxes=100

No. of total shaded boxes=85

percentage of the shaded area=85/100×100=85%

What is the slope-intercept form of 3x + 5y = -15?​

Answers

3x+5y=1 in slope-intercept form is y=−35x+15 .

If It rained for 9.5 hours, how many inches of rain would have fallen?

Answers

Answer:

I believe the answer is 6.5 inches of rain

Step-by-step explanation:

6.33 (with 3 repeating forever) OR 6 [tex]\frac{1}{3}[/tex]

If it was 4 inches after 6 hours lets make an equation. h being the number of hours and i being the inches of rain.

[tex]\frac{4}{6}[/tex]xh = i

Now fill it in with what we know

[tex]\frac{4}{6}[/tex]x9.5 = i

Now solve it.

You get:

6.33 (with 3 repeating forever) OR 6 [tex]\frac{1}{3}[/tex]

This is a lot of questions AND WHOEVER ANSWERES THESE BY THURSDAY 10/22/2020 WILL BE HONORED BY ME. I WILL MARK THE BRANLIEST.
1. What’s a better buy? 16 ounces of crackers for $4.00 or 20 ounces of crackers for $5.00?
2. What’s a better buy? 3 bagels for $2.85 or 5 bagels for $4.00?
3. What's a better buy? 3 pounds of apples for $1.89 or 1 pound of apples for $.79?
4. What's a better buy? 80 marbles for $4.99 or 90 marbles for $5.99?
5.Which rate is better? Sam runs 10 miles in 1 and 1/9 of an hour. Rina runs 8 miles in 7/8 of an hour.
6. Which rate is better? Emily bikes 18 miles in 2 hours. Ella bikes 22 miles in 2.5 hours.
7.Which rate is better? Dan types 100 words in 5 minutes. Dora types 118 words in 6 minutes.
8.Which rate is better? Fran reads 60 pages in 2 hours. Fanny reads 100 pages in 3 hours.
9.Which rate is better? Mona earns $44.55 in 9 hours. Mina earns $51 in 12 hours.
10.Which rate is better? Todd scored 132 points in 12 games. Terry scored 81 points in 8 games.
I KNOW IT'S A LOT BUT IF YOU KNOW THE ANSWERS TO SOME, THEN PLEASE SAY SO. AGAIN, I WILL MARK BRAINLIEST!!

Answers

Answer:

1. both are the same

2. 20 ounces

3. 3 pounds

Step-by-step explanation:

Of 1000 randomly selected cases of lung cancer, 838 resulted in death within 10 years. Construct a 95% two-sided confidence interval on the death rate from lung cancer. (a) Construct a 95% two-sided confidence interval on the death rate from lung cancer. Round your answers to 3 decimal places. (b) Using the point estimate of p obtained from the preliminary sample, what sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03

Answers

Answer:

0.8152 ≤ p ≤ 0.8608

579

Step-by-step explanation:

Given the following :

Samples size n = 1000

Deaths within 10 years, p = 838

α = 95%

Construction a two way confidence interval:

p ± Zα/2 * √p(1-p) / n

point estimate p = 838/n = 838/1000 = 0.838

Z0.05/2 = Z0.025 = 1.96

0.838 - 1.96√0.838(1-0.838) / 1000

0.838 - 1.96*0.0116514 = 0.8152

0.838 + 1.96√0.838(1-0.838) / 1000

0.838 + 1.96*0.0116514 = 0.8608

0.8152 ≤ p ≤ 0.8608

b) Using the point estimate of p obtained from the preliminary sample, what sample size is needed to be 95% confident that the error in estimating the true value of p is less than 0.03

Error (E) = 0.03

To find the samome size, use the relation:

n = (Zα/2 / E)² * p(1-p)

n = (1.96/0.03)² * 0.838(1-0.838)

n = (1.96/0.03)² * 0.838 * 0.162

n = 4268.4444 * 0.838 * 0.162

n = 579.46

n = 579

Find M<1 in the figure below. PQ and RS are parallel

Answers

Answer:

m∠1= 105°

Step-by-step explanation:

The m∠1 and 75° are supplementary angles that sum up to 180°.

The equation here would be: m∠1+75= 180.

Step 1- Subtract 75 to both sides of the equation.

m∠1+75= 180

        -75    -75

m∠1= 105

Hope this helps! :)

Answer:  The answer would be 105.

Step-by-step explanation:

If you look at the angle's corresponding angle, then you will see that it is right next to angle one. So the angle next to angle one is also 75 degrees because it is the same angle or the corresponding angle to the other one that is 75 degrees. So, together, angle one and the angle next to it should equal 180 degrees. So you subtract 180-75=105. And angle one equals 105.

If SSR=30 and SSE=20​, determine​ SST, then compute the coefficient of​ determination, r2​, and interpret its meaning. SST=nothing r2=nothing ​(Type an integer or a decimal. Do not​ round.) Interpret the meaning of r2. Choose the correct answer below. A. It means that 1−r2 of the variation in the dependent variable cannot be explained by the variation in the independent variable. B. It means that r2•​100% of the variation in the dependent variable can be explained by the variation in the independent variable. C. It means that 1−r2•100% of the variation in the independent variable cannot be explained by the variation in the dependent variable. D. It means that r2 of the variation in the independent variable can be explained by the variation in the dependent variable.

Answers

Answer:

R² value implies that 60% of the variation in the dependent variable can be explained by the variation in the independent variable.

Step-by-step explanation:

The information provided is:

SSR = 30

SSE = 20

Compute the total sum of squares as follows:

SST = SSR + SSE

       = 30 + 20

       = 50

The coefficient of determination R² specifies the percentage of the variance in the dependent-variable (Y) that is forecasted or explained by linear regression and the forecaster variable (X, also recognized as the independent-variable).

The coefficient of determination R² can be computed as follows:

[tex]R^{2}=\frac{SSR}{SST}[/tex]

     [tex]=\frac{30}{50}\\\\=0.60[/tex]

The coefficient of determination value is 0.60 or 60%.

This value implies that 60% of the variation in the dependent variable can be explained by the variation in the independent variable.

Use encryption matrix A to encrypt the plain text message.
matrix 2

Encrypted message = matrix 3

e11 =
e12 =
e13 =

e21 =
e22 =
e23 =

Please help algebra is kicking my butt

Answers

Answer:

e11 = 5

e12 = 8

e13 = 4

e21 = 8

e22 = -7

e23 = 16

Step-by-step explanation:

ik this is really late but I hope this helps someone doing edge. have a nice day :)

How would you write 2 × 2 × 2 using exponents?

Answers

Answer:

Step-by-step explanation:

2×2×2...there are 3 2s which is 2³

The recipe for 1 pie calls for 2 cups of flour. Which statement is true?
A 12 cups of flour are needed for 6 pies.
B. O 8 cups of flour are needed for 4 pies.
C.
1 cup of flour are needed for 2 pies.
D.
9
cups of flour are needed for 8 pies.

Answers

Hi!

Lets use a ratio. the recipe calls for 2 cups, for every pie, which is one pie.

So the ratio is 2:1

Now, lets look at the possible answers.

A, has the ratio 12:6. We need to use the ratio 2:1 to make sure this is correct. 2 x 6 = 12, and 12 ÷ 6 = 2, so A is a possibility.

B, has the ratio 8:4. Again, we check with the first ratio 2:1. 2 x 8 = 16, and 16 ÷ 4 = 4, so because the first equation did NOT equal 4, B is not a possibility.

C, has the ratio of 1:2. Because its TWO cups for ONE pie, it wouldn't be correct, so C is not a possibility as well.

D, has the ratio of 9:8. Again, we need to check if its correct using the original ratio of 2:1. 2 x 9 = 18, and 18 ÷ 2 = 2. The ratios do not match, therefore D is not a possibility at all as well.

So, Your Answer Is: A, 12 cups of flour are needed for 6 pies. Also know as the ratio, 12:6

(Here's a tip. When using ratios, use the original ratio to help you out. If when you multiply it doesn't equal the 2nd ratio (as in, 0:6 ⇇⇇ that one right there), and then you divide and it equals the first ratio (as in, this one right here ⇉⇉0:6), it still incorrect.... if all of that made sense)  

Hope this helps!

~~~PicklePoppers~~~

hello I need help on it ​

Answers

It would be 78/4=19.5 which would mean that he would be able to set 19 tables. To be able to set all of the tables he would need 2 more napkins because 19*4=76. 78-76=2 so they would need 2 more to finish the last table.

The amount the price of an item is increased above the price the store paid for the item?

Answers

Answer:

Markup

Step-by-step explanation:

what is /4 of 3/4 =
What is 1/4 of 3/4 =

Answers

Answer:

3/16

Step-by-step explanation:

1) multiply the fracton/percentage wanted from the entire thing

> 1/4×3/4=3/16

Answer: The answer to this basic math question with a given basic fraction expression is [tex]\frac{3}{16}.[/tex]

Step-by-step explanation: Mmmm, that was super extremely easy, so anyways, here is a basic step in order to evaluate the given basic fraction expression:

The word "Of" is the same as multiplication, so we replaced the word "Of" with a multiplication sign that looks in the new basic fraction equation form like this: [tex]\frac{1}{3}*\frac{3}{4} = ?.[/tex] For the fraction multiplication, let's multiply the numerators and then multiply the denominators in order to get [tex]\frac{3}{16}[/tex] that looks in the basic fraction equation form like this: [tex]\frac{1*3}{4*4}=\frac{3}{16}.[/tex] And therefore, your answer to this basic math question with a given basic fraction expression is [tex]\frac{3}{16}.[/tex]

I hope that my full given answer with my full given step-by-step explanation is very helpful to your own basic math question with a given basic fraction expression, please mark me as Brainliest, take care, always be safe, and have a great rest of the holiday winter break, and a happy new year! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

a drawer contained 49 pencils and erasers. William removed p pencils from the drawer. the remaining pencils and erasers were in the ratio of 2:5. write an algebraic expression for the number of pencils left in the drawer.

Answers

Answer:

hey

Step-by-step explanation:

Two times the reciprocal of a number equals 16 times the reciprocal of 20. Find the number. (1 point)

Answers

Let the number be x .

Reciprocal of x :-

[tex] = \frac{1}{x} [/tex]

An equation to find x :-

[tex]2 \times \frac{1}{x} = 16 \times \frac{1}{20} [/tex]

[tex] \frac{2}{x} = \frac{16}{20} [/tex]

[tex]16 \times x = 20 \times 2[/tex]

[tex]16x = 40[/tex]

[tex]x = \frac{16}{40} [/tex]

[tex]x = \frac{4}{10} [/tex]

[tex]x= \frac{4 \div 2}{10 \div 2} [/tex]

[tex]x = \frac{2}{5} [/tex]

Reciprocal of x :-

[tex] = \frac{5}{2} [/tex]

Which means the number :-

[tex] = \frac{5}{2} [/tex]

We can check it by :-

[tex]2 \times \frac{2}{5} = \frac{16}{20} [/tex]

[tex] \frac{4}{5} = \frac{16}{20} [/tex]

[tex] \frac{4}{5} = \frac{16 \div 4}{20 \div 4} [/tex]

[tex] \frac{4}{5} = \frac{4}{5} [/tex]

LHS = RHS

Which means we have found the correct number .

Therefore , the value of the number , whose reciprocal multiplied by 2 gives 16 times the reciprocal of 20 is :-

[tex] = \frac{5}{2} [/tex]

7 days left until launch of products with $668 left in budget. Need to spend $85 on last day. How many dollars do we spend on remaining days?

Answers

Answer:

In total, you have $668.00.

To reserve enough for the last day, you need to subtract the last day's budget:

This means that, for the remaining 6 days in the week, you have $583.00.

Assuming an equal amount is being spent each day, you can calculate the daily budget by dividing the remaining total by the number of days left.

To avoid going over budget, you can spend $97.16 per day for the other six days.

Hope this helps!

Step-by-step explanation:

HELP ME PLZZZZZZZZZZZZZZ

Answers

It’s the first one lol

Answer: 1

Step-by-step explanation: HELP ME PLS TOO

Which is a member of the solution set of -5 < x ≤ -1?

Answers

Answer:

-1

Step-by-step explanation:

Put these two numbers on a number line with the correct circles. Now choose from any of the between numbers.

I don't understand this can you help me pls?

Answers

Sure what is love I would love to help


Helppppppp plzzzzzzzzzxzxzmfyfdtidt

Answers

Answer:

y=7

Step-by-step explanation:

Distribute: 9y-4y-4=31

Add like terms: 5y-4=31

Isolate: 5y=35

Divide each side by 5: y=7

ANSWER: y=7

Hope this helps

1
2
How did Buddhism change as it spread throughout Asia?
Buddhism became less focused on seeking enlightenment.
Buddhism combined with Hinduism to create a new religion.
Buddhism split into three groups based on the places where it spread.
Buddhism adopted Christian and Islamic teachings to reach a wider audience.

Answers

Answer:

Buddhism split into three groups based on the places where it spread.

Step-by-step explanation:

Answer:

Buddhism split into three groups based on the places where it spread.

Step-by-step explanation:

Charlene and Gary want to make confetti. In order to get the right balance of ingredients for their tastes they bought 3 pounds of paper hearts at $2.46 per pound, 5 pounds of sparkling stars for $3.05 per pound, and 3 pounds of shiny coils for $2.33 per pound. Determine the cost per pound of the coffeti.

Answers

Answer:

0.712 cents per pound

Step-by-step explanation:

Since we are given the exact amount of each ingredient as well as the price for that amount then we simply need to calculate how much each pound of the confetti actually costs. We do this by adding together all of the pound of all of the ingredients and then adding together all of the costs. Lastly, we divide the cost by the total amount of pounds to find the cost per pound of the confetti like so...

3lbs. + 5lbs. + 3lbs. = 11 lbs.

$2.46 + $3.05 + $2.33 = $7.84

$7.84 / 11 lbs. = 0.712 cents per pound

Therefore, the cost per pound of the confetti is 0.712 cents per pound

Other Questions
The diagram below shows the layers in a rock having a brachiopod:A rock column labeled Rock is shown. The column has three layers. The bottommost layer of the rock has two identical organisms marked as, Brachiopod, in the key and one shaded circle, the middle layer has a two squares, the top layer has one star shape. In the key the shaded circle is marked as X, the square is marked as Y and the star is marked as ZWhich statement about the rock fossils is true? Organism X existed for a short period of time. Organism Y became extinct before organism X. Organism X and organism Y existed at the same time. Organism Z became extinct much before organism X.s 1. Saphenous vein2. Basilic vein3. Brachial vein4. Femoral vein5. Jugular vein which veins are deep veins and which ones are superficial veins? Which answer choice is a sentence fragment?A. On the far side of her room or in the basement.B. She forgets to return the things she borrows.C. I don't mind sharing my things with her.D. My sister likes to borrow things from me. Which number is IRRATIONAL?A)VB)V1632D)164 All of the following devices are used in the second paragraph EXCEPT A. metaphor B. parallelism C. allusion D. abstract terms E. chiasmus Pls help me answer it thx 1x + 6 = -8 please help me I dont understand do if you could explain Id appreciate it. 7 Which statement provides the best foreign policy evaluation of the NGO, Doctors Without Borders? Samantha has a bakery that has been successfully run for over a year, and its growing in popularity. If she planned to use her profits in order to merely cover the same costs she had in the previous year, what risk is she most likely taking? Group of answer choices might not be able to pay her taxes might not be able to attract essential new investors might lose customers because of a lack of innovation might not be able to keep up with increased demand What are the disadvantages of polygamous in animals what -45 divided by 75 A parallel-plate capacitor, with air dielectric, is charged by a battery, after which the battery is disconnected. A slab of glass dielectric is then slowly inserted between the plates. As it is being inserted: As the book ends, Scout awakes the morning after the attack, and she sees the town differently.True Or false Which of the following conclusions can be made about the sedimentary layers?(A) bed 2 was deposited after bed 3(B) bed 1 is the youngest(C) bed 3 was deposited before bed 1(D) bed 2 was deposited before bed 3 What is the slope of a line that is perpendicular to the line y = x + 4?The slope of the line is How would you obtain ethanol from rice starch? Use the protractor to find the degree measure of the angle.Make sure to write your answer with the degree sign. A school is planning a fundraiser with all profits going to charity. The amount of profit is found by subtracting the total cost from total ticket sales. Ticket Sales: 200x10x2Event Cost: 500+20xIf x represents the price of a ticket, what ticket prices will result in a profit of $200 or more? Express your answers rounded to the nearest cent.A $5.69xB $5.69x$12.33C $3.29xD $3.29x$21.29Please help. Heels, a shoe manufacturer, is evaluating the costs and benefits of new equipment that would custom fit each pair of athletic shoes. The customer would have his or her foot scanned by digital computer equipment; this information would be used to cut the raw materials to provide the customer a perfect fit. The new equipment costs $107,000 and is expected to generate an additional $43,000 in cash flows for five years. A bank will make a $107,000 loan to the company at a 15% interest rate for this equipments purchase. Compute the recovery time for both the payback period and break-even time. (PV of $1, FV of $1, PVA of $1, and FVA of $1) (Use appropriate factor(s) from the tables provided.)Chart Values are Based on: 10% Cumulative Cash Inflow Present Value of Inflow Year Present Value PV Factor (Outflow) (Outflow) (91,000) x 1.0000- (91,000) $ (91,000) 36,000 x 36,000 x 2.5 years What does universal solvent mean