Answers
3x^2=12 if x=-2 because (-)x(-) is a +.
Again(-)x(-)=+ so -12x-2=24
24+12=36
36+4=40
Answer:
D) 40
Step-by-step explanation:
(3)(-2)² (-12)(-2) + 4
(3)(4) + (24) + 4
12 + 24 + 4 = 40
To understand:
Rules of adding integers
To add integers having the same sign, keep the same sign. and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.
Rules of subtracting integer
First, keep the first number (known as the minuend). Second, change the operation from subtraction to addition. Third, get the opposite sign of the second number (known as the subtrahend) . Finally, proceed with the regular addition of integers.
Rules of multiplying and dividing integers
Multiplication and Division of Integers.
RULE 1: The product of a positive integer and a negative integer is negative. RULE 2: The product of two positive integers is positive.
RULE 3: The product of two negative integers is positive.
Related Questions
Write in slope-intercept form (solve for y): 5x - 2y = 8
Answers
Answer:
y = 5/2 x - 4
Step-by-step explanation:
For slope-intercept form, just solve for y:
5x - 2y = 8
[tex]\frac{5x}{2} - \frac{8}{2} = \frac{2y}{2}[/tex]
5/2 x - 4 = y or
y = 5/2 x - 4
The slope intercept form is y= 5/2x - 4.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
We have the Equation
5x - 2y = 8.
As, we know from the slope intercept form
y= mx + b
So, 5x - 2y = 8
5x - 8 = 2y
5/2x - 8/2 = y
y= 5/2x - 4
where slope is 5/2 and y intercept is -4.
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What is the amount of simple interest paid on a principal amount of 3000 at a rate of 7% for a term of 4 years ?
Answers
Answer:
$3,840.00
Step-by-step explanation:
Formula for finding simple interest - P×R×T÷100
3000 ×7 ×4 ÷100
= $3,840.00
Is each of these an expression , an equation a formula or a function?
17-3m=
n 2n+1=
a/4 + 2b -3=
Answers
Answer:
it 5 6t6rdhdjcjcnfjfnvjvncnchcjbcjcnckc NM ckxm
When traveling the probability of missing two flights in a row is .06. The probability of missing a single flight is .19. Are the two flights independent? ?
Answers
Answer:
Suppose that we have two events, event A and event B.
Where the probability of event A is Pa, and the probability of event B is Pb.
We say that events A and B are independent if the probability of both events happening is equal to the product of the individual probabilities.
Probability of event A and B = Pa*Pb.
In this case we have:
A = missing a single flight
B = missing a single flight.
Pa = 0.19 = Pb.
And we know that the probability of missing two flights is 0.06
Let's see if this is equal to the product of the individual probabilities:
Pa*Pb = 0.19*0.19 = 0.036
So the joint probability is smaller than the one given, this means that the events are not independent and that if you miss one plane, the probability of missing the next one has a small increase.
Name the corresponding angle or side.
A) A
B) B
C) C
D) D
Answers
Plz plz plz plz plz................
Answers
Answer:
x = 20.5
The way to get 20.5 is by looking at how you got 8, which is simple, you divided 16 by 2. So, we can do the same to the denominator by dividing it by 2 to get x.
Step-by-step explanation:
Hope this helped, my dear! <3
i have not learned a single thing behind this screen and i’m gonna probably fail this test :( please help
Answers
Answer:
74 degrees
Step-by-step explanation:
Answer:
x = 74
Step-by-step explanation:
since the sides are the same lengths they will be the same angles
32 + 2x = 180
2x = 148
x = 74
Check:
32+ 74 + 74 = 180
2) A youth ice hockey game has 3 periods that are each 20 minutes long. Colin plays 12 minutes each period. Which ratio shows Colin's playing time compared to the total number of minutes of playing time possible?
Answers
Its D or A But im pretty sure its A! Hope you do Great!
Let me know if its wrong!
help btw this is 8 grade stuff idk y it says hight school
Answers
Answer:
integers
Step-by-step explanation:
May i have brainiest
Hi! I believe your answer is the first choice: integers. Integers are like whole numbers, but they also include negative numbers, but still no fractions allowed. I hope this helps you! Good luck and have a great day. ✨❤️
original price: $60 Markup: 15% Retail Price:??
Answers
Answer:
51
Step-by-step explanation:
Which of the following is the complete list of roots for the polynomial function f (x) = (x squared + 2 x minus 15) (x squared + 8 x + 17)?
A) 5, 3
B)–5, 3, –4 + i, –4 – i
C)–5, 3, –4 + i, 4 + i
D) –4 + i, –4 – i
Answers
Answer: ITS B (-5,3,-4 + i, -4 - i)
The correct answer is B, or –5, 3, –4 + i, –4 – i
Just got it right on edge 2020, hope this helps!! :)
After an earthquake, 3/5 of all claims were paid within a month. Of the remaining claims not paid 2/5 of them were paid within the second month. What fraction of claims were paid in the second month?
Answers
the answer is 6/25 of them were payed in the second month
Luke had $14.50. He spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Luke has left?
Answers
Answer: $4.90 left
Step-by-step explanation:
He spent a total of $9.60 at the snack bar and the arcade. You need to just subtract this from the total he had to get $4.90 left.
Elena is feeding her neighbor’s dogs. Each dog gets ⅔ cup of dog food, and she uses 3 ⅓ cups of food. How many dogs does her neighbor have?
Answers
Answer: 5 dogs
Step-by-step explanation:
1. So fist I would convert the three into the fraction witch would become
10/3
2. Then love the problem
Answer:
Her neighbor has 5 dogs
Amanda filled her gas tank three times last week. Here are the amounts of gas she bought (in gallons). 10.7,15 , 3.7 What is the total amount of gas Amanda bought last week?
Answers
Answer:
29.4 gallons
Step-by-step explanation:
Given that
the amounts of gas she bought (in gallons). 10.7,15 , 3.7
total amount of gas Amanda bought last week will be sum of 10.7 , 15 and 3.7
total amount of gas Amanda bought last week = 10.7 + 15 + 3.7
=> total amount of gas Amanda bought last week = 29.4
Thus, Amanda bought 29.4 gallons in total in last week.
Divide. Write answers in simplest form 3/8 divided by
3/10
Answers
Answer: 5/4 is the answer
evaluate the expression when b=6 and x=-5
-b+2x
Answers
Let's solve for b.
x=−5−b+2x
Step 1: Flip the equation.
−b+2x−5=x
Step 2: Add -2x to both sides.
−b+2x−5+−2x=x+−2x
−b−5=−x
Step 3: Add 5 to both sides.
−b−5+5=−x+5
−b=−x+5
Step 4: Divide both sides by -1.
−b
−1
=
−x+5
−1
b=x−5
Answer:
b=x−5
Answer:
If b=6 and x=-5 then the equation would turn into -6-10. The answer is -16. I hope I helped! :P
A guitar costs $545.95. If tax is 9.5%, what will the total price of the guitar be?
Answers
Answer: The total price of the guitar will be $597.82
Step-by-step explanation:
Multiply 545.95 by 0.095 and you get 51.87. Add 51.87 to 545.95 and you get 597.82
The formula for simple interest is where I is the amount you will pay in interest, r is the rate at which interest will accrue, P is the principal (amount borrowed), and m is the number of times the interest is applied.
Answers
Answer:
Kindly check explanation
Step-by-step explanation:
The simple interest formula (I) is the product of the principal, interest rate and the number of times interest is applied
Mathematically,
Simple interest (I) = principal(p) * rate(R) * time (t)
For instance, if a principal amount of $200 is borrowed at a rate of 5% per annum for 3 years. The simple interest on the amount borrowed will be :
Simple interest = $200 * 5% * 3
Simple Interest = $200 * 0.05 * 3
Simple Interest = $30
At a football stadium, 20% of the fans in attendance were teenagers. If there were 130 teenagers at the football stadium, what was the total number of people at the stadium?
Answers
Answer:
there were 650 people total
if a yard is 3 foot long, how many inches are in on yard
Answers
Answer:
36 inches
Step-by-step explanation:
Answer:
36 inches
Step-by-step explanation:
a yard is 3 feet long
there are 12 inches in a foot
so there are 12x3 inches on a foot.
12x3=36 inches
The total cost for prom including rental facilities is $1560. They received an anonymous donation for $500. How many tickets do they need to sell at $15 each to at least break even?
Answers
Sam can clean his room in 3 hours. His sister, Susan, can clean his room in 2 hours. How long will it take them to clean the room working together?
This is a rational equation problem
Answers
Answer:
2 hour for sams room 1 hour to clean susan room i think sorry fi im wrong
Step-by-step explanation:
hhnshsnsnskssjsnnsnsjsjen
Answers
Answer:
ghcfkjdecklijgf
What is x squared minus 25 equals 0
Answers
Answer:
its 9 at night gts.
Step-by-step explanation:
25 - 25 is 0
So yeah, x = 5
When applied to triangle ABC, what series of transformations will produce a triangle with
vertex coordinates A'(8,1), B' (4, -3), and C'(-2, 4)?
Answers
Answer: a rotation 90 degrees followed by a reflection about the y axis
Please, what is the answer?
Answers
Answer:
bean
Step-by-step explanation:
bean
A car travels 1,295 feet in 5 seconds. At that speed, how far can this car travel in 50 seconds?
Answers
Answer: 12,950 feet in 50 seconds
Step-by-step explanation: 1,295 x 10 =12,950 5 x 10 = 50 seconds
Hi, I need some help with this pls! I would really appreciate it!
Answers
Answer:
78
Step-by-step explanation:
the sale tax rate on groceries in a certain state is 9% if the price of a grocery item before sales tax is g dollars, which expression represents the cost of the grocery item including sales tax?
Answers
Step-by-step explanation:
g + 0.09g = the final price
multiplying 0.09(9/100) with g will give you the tax
then you add it up to get the final cost.
The expression representing the cost of the grocery item including sales tax is 1.09g.
What is Percentage?Percentage is a dimensionless number and it has no measurement units.
It is usually denoted by the sign %. Sometimes it has also used in the abbreviated form 'pct.'.
Percentage of a number is the quotient of the number dividing with the whole and then multiply with 100. The reverse calculation can be done to find the number corresponding to a percentage.
Price of a grocery item before sales tax = g dollars
Sales tax rate on groceries = 9%
Amount of sales tax = 9% × g
= (9/100) × g
= 0.09 g
Total cost of the grocery = g + 0.09g
= 1.09g
Hence the total cost of the grocery item including sales tax is 1.09g.
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