Given the side lengths, determine whether the triangle is acute, right, obtuse, or not a triangle.
15, 16, 21
A Not a Triangle
B Acute
Obtuse
D Right

Answers

Answer 1

9514 1404 393

Answer:

  B  acute

Step-by-step explanation:

We can define a "form factor" for a triangle as ...

  f = a² +b² -c²

where c is the longest side length. It will be interpreted as follows:

negative -- obtuse trianglezero -- right trianglepositive -- acute triangle

For this triangle, our "form factor" is ...

  f = 15² +16² -21² = 225 +256 -441 = 40 . . . . a positive number

The triangle is Acute.

Given The Side Lengths, Determine Whether The Triangle Is Acute, Right, Obtuse, Or Not A Triangle.15,

Related Questions

Please ASAP someone help with this Math It's a missing assignment and it needs to be done and I don't know!!!!!!!!!!!!!!​

Answers

slope means how many chapters will be read per x days, y intercept is the starting amount of chapters already read

Use the Binomial Theorem to expand (x + 1)^6

Answers

Answer:

Here is what i got x^2+6x^5+15x^4+6x+1

Step-by-step explanation:

^ that mark is for exponents btw. For anyone that is new to this

The Binomial Expansion of  [tex](x+ 1)^6[/tex] is [tex]x^6[/tex] + 6[tex]x^5[/tex]y + 15[tex]x^4[/tex]y² + 20x³y³ + 15x²[tex]y^4[/tex] + 6x[tex]y^5[/tex] + [tex]y^6[/tex].

What is Binomial Expansion?

An expression that has been raised to any finite power can be expanded using the binomial theorem. A useful expansion technique with applications in probability, probability theory, and algebra is the binomial theorem. A binomial expression is an algebraic expression with two terms that are not the same.

Given:

We have to expand [tex](x+ 1)^6[/tex]

We know the general form of Binomial Expansion

(x + y[tex])^n[/tex] = C(n, 0) [tex]x^ny^0[/tex] + C(n, 1) [tex]x^{n-1}y^1[/tex] +.........+ C(n, n) [tex]x^0y^n[/tex]

Here n= 6

So, the expansion of [tex](x+ 1)^6[/tex] is

= C(6, 0) [tex]x^6y^0[/tex] + C(6, 1)[tex]x^5y^1[/tex] + C(6, 2) [tex]x^4y^2[/tex] + C(6, 3) x³y³ + C(6, 4) x²[tex]y^4[/tex] +  

   C(6, 5) x[tex]y^6[/tex] + C(6, 6) [tex]x^0y^6[/tex]

= [tex]x^6[/tex] + 6[tex]x^5[/tex]y + 15[tex]x^4[/tex]y² + 20x³y³ + 15x²[tex]y^4[/tex] + 6x[tex]y^5[/tex] + [tex]y^6[/tex]

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Find the measure of 67.
81
96
90
47 = [?]
Entor

Answers

Answer

Correct option is

A

68

Answer:

96 is the answer because vertically opposite angles are always equal

Solve the following inequalities and give the solutions in both set and interval notations.

-x/8 + 8/3 ≥ 3

Answers

Given:

The inequality is

[tex]-\dfrac{x}{8}+\dfrac{8}{3}\geq 3[/tex]

To find:

The solution for the given inequality in both set and interval notations.

Solution:

We have,

[tex]-\dfrac{x}{8}+\dfrac{8}{3}\geq 3[/tex]

It can be written as

[tex]-\dfrac{x}{8}\geq 3-\dfrac{8}{3}[/tex]

[tex]-\dfrac{x}{8}\geq \dfrac{9-8}{3}[/tex]

[tex]-\dfrac{x}{8}\geq \dfrac{1}{3}[/tex]

Multiply both sides by -8 and change the inequality sign.

[tex]x\leq -\dfrac{8}{3}[/tex]

It means all the values of [tex]x[/tex] which are less than or equal to [tex]-\dfrac{8}{3}[/tex] are included in the solution set.

Set notation is [tex]\{x|x\leq -\dfrac{8}{3}\}[/tex].

Interval notation is  [tex]\left(-\infty,-\dfrac{8}{3}\right ][/tex].

a triangle has one angle that measures 32 degrees and one angle that measures 102degrees. the measure of the triangle's thrid angle is what degrees?​

Answers

46

Step-by-step explanation:

all angles must add to 180

32+102= 134

180-134= 46

correct me if im wrong:)

how do I simplify 2y > 4​

Answers

Answer and Step-by-step explanation:

Divide both sides by 2 to get y.

2y > 4

y > 2

y > 2 is the answer.

#teamtrees #PAW (Plant And Water)

I WILL GIVE BRAINLIST!! The perimeter of ABCD is 140. Solve for x, y, and z
* there is picture down below*

Answers

Answer:

ABCD is a kite

Properties:

AB = AD, CB = CD, AC⊥DB, AC is angle bisector of DAB and DCB

Find x:

P = 140 2(2x + 7 + 4x +3) = 1406x + 10 = 706x = 60x = 10

Find y:

3y - 1 and 28° are complementary3y - 1 = 90° - 28°3y - 1 = 62°3y = 63°y = 21°

Find z:

4z and 58° are complementary4z = 90° - 584z = 32°z = 8°

Answer:

x=10

y = 21°

z=8°

Step-by-step explanation:

we have

AB = AD, CB = CD,

AC perpendicular to DB, AC is angle bisector of DAB and DCB

Perimeter = 140

2(2x + 7 + 4x +3) = 140

6x + 10 = 70

6x = 60

x = 60/6=10

x=10

again

3y - 1 +28° =90

3y - 1 = 90° - 28°

3y - 1 = 62°

3y = 63°

y = 21°

again

4z+58°=90

4z = 90° - 58

4z = 32°

z=32/4

z=8°

Lucy recently asked the servers at her restaurant to only give straws to customers who request them. She thinks that about half of the customers will ask for straws but hopes that the rate will be less than half. She randomly selects 100 customers and finds that 43 of them ask for a straw. To determine if these data provide convincing evidence that the proportion of customers who will ask for a straw is less than 50%, 150 trials of a simulation are conducted. Lucy is testing the hypotheses: H0: p = 50% and Ha: p < 50%, where p = the true proportion of customers who will ask for a straw. Based on the results of the simulation, the estimated P-value is 0.0733. Using ∝ = 0.05, what conclusion should Lucy reach?

Because the P-value of 0.0733 > Alpha, Lucy should reject Ha. There is convincing evidence that the proportion of customers who will ask for a straw is less than 50%.
Because the P-value of 0.0733 > Alpha, Lucy should reject Ha. There is not convincing evidence that the proportion of customers who will ask for a straw is less than 50%.
Because the P-value of 0.0733 > Alpha, Lucy should fail to reject H0. There is convincing evidence that the proportion of customers who will ask for a straw is less than 50%.
Because the P-value of 0.0733 > Alpha, Lucy should fail to reject H0. There is not convincing evidence that the proportion of customers who will ask for a straw is less than 50%.

Answers

Answer:

Because the P-value of 0.0733 > Alpha, Lucy should fail to reject H0. There is not convincing evidence that the proportion of customers who will ask for a straw is less than 50%.

Step-by-step explanation:

To understand this question, you'll have to understand a few terms: the null hypothesis, the alternative hypothesis, the p-value and the signifiance level.

The null hypothesis (H₀) is the assumption that the phenomenon doesn't exist - in this case, it is that the proportion of customers who will ask for a straw is 50%, or due to chance (you can either ask for a straw or not). When doing a statistical test for the existance of a phenomenon, we usually assume the null hypothesis to be true first.

The alternative hypothesis (Hₐ) is the assumption that a phenomenon is true. In this case, it is that that the proportion of customers who will ask for a straw is less than 50%.

The p-value is usually a result you get after performing the statistical test - it's the probability that the observed results are at least as extreme as the results actually observed, assuming that the null hypothesis is true. In this case, assuming that the proportion of customers who will ask for a straw is 50% (the null hypothesis), a p-value of 0.0733 for the observed result of 43 customers means that if the experiment were to be repeated again, then there is a 7.33% chance that 43 customers or less will ask for a straw, assuming the null hypothesis is true. This seems pretty good - assuming the null hypothesis is true, there's only a 7.33% chance that we could have gotten 43 customers or less, which means it may be reasonable to "reject the null hypothesis" (i.e. the alternative hypothesis may be true).

However, in many cases a 7.33% chance may not be low enough, e.g. in this problem, a less than 5% chance (i.e. p < 0.05) is necessary. This required chance for results to be statistically significantly is called the signifiance level, or alpha value, the "the probability of rejecting the null hypothesis when the null hypothesis is in fact true." In scientific journals or depending on the field of study, there may be a generally accepted signifiance level.

I need help ASAP will mark the brainliest

Answers

Answer:

so it's difficult to do

i try

I need to help u

Write the phrase as an algebraic expression.
Two less than seven times a number c is written as
.

Answers

Answer: 7c-2

Step-by-step explanation:

Q6 A man is going to New York for work. He wants
to book a hotel online.
A friend says
"Remember the booking website will show the price in dollars. It will actually cost more
pounds than the price shown, because of the exchange rate.'
The man checks the exchange rate because he thinks his friend is wrong. He thinks that
the number of pounds will be less than the number of dollars shown.
Exchange rate
£1 = $1.24
Who is right,
the man or his friend?
Explain your answer.​

Answers

Answer:

The man

Step-by-step explanation:

Let's say the hotel cost $12400(just an example...)

So the website will show $12400. And the man needs to pay $12400.

Since one pound is 1.24 dollars, 12400 dollars will be 12400/1.24=10000 pounds.

12400>10000, so the man is right, the number of pounds will be less than the number of dollars shown.

The man is right about the Exchange rate.

what is Exchange Rate?

The rate at which one currency will be exchanged for another is known as the exchange rate. The most frequent types of currencies are national currencies,

A currency's relative value expressed in terms of another currency is called an exchange rate (or group of currencies). The exchange rate is a significant economic variable for nations with active international trade, like Australia.

Given:

The Situation is The man's friend told him that " It will actually cost more

pounds than the price shown, because of the exchange rate."

This means the price in pounds is more than dollar.

But the exchange rate is found to be

£1 = $1.24

So, the price in dollar is more than in pounds.

Hence, the Men is correct.

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6) You decide to buy food for your baseball team. Hamburgers cost $3.50 and hotdogs cost $2.50. After buying 22 items, the total cost is $68. How many hotdogs did you buy? How many hamburgers did you buy?​

Answers

Answer:

13 hamburgers and 9 hot dogs

Step-by-step explanation:

Answer:

13 hamburgers

9 hotdogs

I see the person that also gave you an answer never explained how they got the answer.  I thought you might like an explanation

Step-by-step explanation:

Let x = no. of hamburgers

     y = no. of hotdogs

(1)    x + y = 22              (2)      3.5x + 2.5y = 68

            y = 22 - x                    35x + 25y = 680

                                                35x + 25(22 - x) = 680

                                                35x + 550 - 25x = 680

                                                 10x + 550 = 680

                                                              10x = 130

                                                                  x = 13 hamburgers

           y = 22 - x = 22 - 13 = 9 hotdogs

At a graduation dinner, an equal number of guests were seated at each of 12 large tables, and 8
late-arriving guests were seated at a smaller table. There were 128 guests in all. If n represents the
number of people seated at each of the large tables, what equation could you use to find the value
of n?

A. 12n - 8 = 128
B. 12n +8 = 128
C. 8n + 12 = 128
D. 8n - 12 = 128

Answers

Answer::: A. 12n -8 =128

What are terms in a polynomial separated by ?

Answers

Answer:

Terms are separated by addition signs and subtraction signs, but never by multiplication sign

Step-by-step explanation:

A polynomial with one term is called a monomial. A polynomial with two terms is called a binomial. A polynomial with three terms is called a trinomial.

1+1+1+1
If you get it correct 65 points lol
Which you probably will
Points wasted

Answers

Answer:

4

Step-by-step explanation:

The answer is four :)

A jug contains 4 gallons of water. How many quarts of water does the jug contain? The jug contains quarts of water.​

Answers

Answer:

It contains 16 quarts of water

Step-by-step explanation:

Just do 4 gallons by the 4 quarts in one gallon and youll get 16

Answer:

One gallon is equivalent to four quarts. so 4 gallons equal 4×4=16 quarts.

Can you help me do thiss? pls

Answers

Answer:

walk = 9/30 -  bike = 3/30 - car = 6/30 - bus = 12/30

Step-by-step explanation:

18. Let f(x) = ax? + bx-6 and 0 (x) = bx2 + ax.
If x-2 divides f(x) completely but leaves
the remainder -12 when it divides $(x),
then factorise f (x) + 0 (x) + 2x2.​

Answers

Step-by-step explanation:

the number of members in A municipal corporation depends upon the _______ city

math question
area of figure​

Answers

Answer:

We divide it into 3 rectangles:

A rectangle with sides 19mi and 5mi,

a rectangle with sides 1mi and 31mi,

and a rectangle with sides 10mi and 20mi,

so we get 95 + 31 + 200 = [tex]\boxed{326}[/tex]

Hope this helps!

can someone help me with this please​

Answers

Answer:

I': (-1, 4)

J': (3, 5)

K': (3, 2)

Step-by-step explanation:

to find the new 'x' values, add 2 to original 'x' values

to find the new 'y' values, add 6 to original 'y' values

Which of the following choices are equivalent to the expression below? Check all that apply x8/5

Answers

5 is the denominator of the fraction, so you can pull the denominator out as a radical to get A. (x^8)^1/5 or D. [tex]\sqrt[5]{x^8}[/tex]

Pls help me with the question
solve the systems by elimination

-x+5y=17
x + 2y =11
they are both different equations but they are the same question

Answers

x=3
y=4
-x+5y=17 multiply by -1
x-5y= -17

x+2y=11.
x=11-2y

11-2y-5y= -17
-7y= -17-11
-7y= -28 multiply by -1
7y=28
y=28/7
y=4

x=11-2y
x=11-2•4
x=11-8
x=3

norma made the graph below to show the relationship between the age and value of 12 cars. Which value, when removed from the graph, would result in the relationship being a function?

Answers

it is 80 cars in a row baby kittwn

find the product 240 * 5.07 ​

Answers

Answer:

1216.8

Step-by-step explanation:

Multiply  240  by  5.07 . 1216.8

1216.8 is the product of the equation

What percent of a dollar is a nickel and a penny?



It is ______% of a dollar.

Answers

Answer:

6 %

Step-by-step explana

100 pennies makes a dollar... you just add 5 for the nickel and 1 fo the penny and it makes 6

During the two hours of the morning rush from 8 a.m. to 10 a.m., 80 customers per hour arrive at the coffee shop. The coffee shop has a capacity of 60 customers per hour. On average how long does a customer arriving during the morning rush wait to be served

Answers

Answer:

The average waiting time is 1/3 hours (or 20 minutes)

Step-by-step explanation:

Given

[tex]T = 2hours[/tex] --- Time

[tex]D = 80\ customers/hr[/tex] --- Arrivals

[tex]C = 60\ customers/hr[/tex] --- Capacity

Required

Determine the average waiting time

The average waiting time (AT) is calculated using the following formula:

[tex]AT = \frac{1}{2} * T * (\frac{D}{C} - 1)[/tex]

This gives:

[tex]AT = \frac{1}{2} * 2 * (\frac{80}{60} - 1)[/tex]

[tex]AT = 1*(\frac{80}{60} - 1)[/tex]

[tex]AT = (\frac{80}{60} - 1)[/tex]

Remove bracket

[tex]AT = \frac{80}{60} - 1[/tex]

Take LCM

[tex]AT = \frac{80-60}{60}[/tex]

[tex]AT = \frac{20}{60}[/tex]

[tex]AT = \frac{1}{3} hr[/tex]

or

[tex]AT = \frac{1}{3} * 60\ mins[/tex]

[tex]AT = 20\ mins[/tex]

A candy shop puts together two prepackaged assortments to be given to​ trick-or-treaters on Halloween. The feasible set for producing x packages of assortment A and y packages of assortment B has been graphed to the right. For the earnings function Earningsx​y, where Earnings is in​ cents, how many of each assortment should be prepared in order to maximize​ profits? What is the maximum​ profit? 0 600 0 600 x y A coordinate system has a horizontal x-axis labeled from 0 to 600 in increments of 120 and a vertical y-axis labeled from 0 to 600 in increments of 120. A four-sided polygon labeled as the feasible set is formed by a series of line segments and their intersection with the x-axis and y-axis. The line segments are labeled as follows: y equals negative 2 x plus 600; y equals negative x plus 350. The shop should prepare nothing packages of assortment A and nothing packages of assortment B to maximize profit. ​(Type whole​ numbers.) The maximum profit is ​$ nothing. ​(Round to the nearest cent as​ needed.)

Answers

Answer:

Step-by-step explanation:

The correct question is attached in the image below;

From there, given that: the earnings = 60x + 50 y ------ (1)

y = -x + 175

for x = 0 ⇒ y = 175 ; Then Point A (0, 175)

y = -2x + 300

for y = 0 ⇒ x = 150 ; Then Point C (150, 0)

For Point B;

y = -x + 175    ---- (a)

y = -2x + 300 ---- (b)

Equating both (a) and (b) from above together; then:

⇒ -x + 175 = -2x + 300

⇒ x = 125

From y = -x + 175

y = -125 + 175

y = 50

So point B ( 125, 50)

Now, the points are O(0, 0), A(0, 175), B(125, 50), C(150, 0)

As such, profit at these points are:

O(0, 0), Profit = 60 × 0 + 50 × 0 = 0

A(0, 175), Profit = 60 × 0 + 50 × 175 = 8750

B(125, 5), Profit = 60 × 125 + 50 × 50 = 10,000

C(150, 0), Profit = 60 × 150 + 50 × 0 = 9000

Hence, maximum profit takes place at B(125, 50) which is = $10,000

Finally, we can conclude that the shop should prepare 125 packages of assortment A and 50 packages of assortment B to maximize profit.

The maximum profit is $10,000

A manufacturer of flashlight batteries took a sample of 15 batteries from a day's production and used them
continuously until they failed to work. The life lengths of the batteries, in hours, until they failed.
426
317
545
264
1049
631
512
366
592
562
298
421
678
345
987

At the .05 level of significance, is there evidence to suggest that the mean life length of the batteries produced by this manufacturer is more than 500 hours?

Answers

The right answer is 1049 plus the 987

Geometry Question Need Help. Solve for x:

Answers

Answer:

im not sure

Step-by-step explanation:

sorry

There are four people in a family-a father, a mother and two children-and they have won two tickets to go to Disneyland for a week. They decide to select a sample of two people for the trip as follows: the mother and father flip a coin to see which of the two of them will go, and they then flip a coin to see which of the two children will go. Which of the following is true?

Answers

Where are the options?
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