Mathematics High School

An equilateral triangle has a perimeter of 42. What is it's height?

Answers

Answer 1

Answer:

Given that: The perimeter of the equilateral triangle is 42 inches. Side of the triangle=Perimeter/3=42/3=14 inches. The height of the triangle is 12 inches

Step-by-step explanation:

12 inches hope it helps

Answer 2
That person that answered your question is right

Related Questions

PLEASE HELP ITS URGENT!!! I’ll give brainleist

Emma has $12.60 worth of nickels and quarters. She has 4 times as many quarters as
nickels. How many quarters does she have?

Answers

Answer:

LIke ummmm

Step-by-step explanation:

soo like maybe umm like umm  she has 10 dollars worth of nickles and 1.60 dollars worth of quarters

Answer:

Emma has $50.40 worth of quarters

Pattie buys a handbag that costs 240 dollars and a scarf that costs 86 dollars. If sales tax is 7%, what is the total purchase price including tax?

Answers

Answer:

$348.82

Step-by-step explanation:

240 +86=326

326× 7%= 22.82

326+22.82= $348.82

Answer:

$348.82

Step-by-step explanation:

plllllzzzzzzzzz hurry

Answers

Answer: -34.5>x

Step-by-step explanation: hope this help

Monique collects data from a random sample of seventh graders in her school and finds that 8 out of 20 seventh graders participate in​ after-school activities. Write and solve a proportion to estimate the number of seventh graders n who participate in​ after-school activities if 110 seventh graders attend​ Monique's school.

Answers

Answer:

69

Step-by-step explanation:

69

Find the area of figure ABCDE if angles A, B, and C are right triangle

Answers

Answer:

85 ft.

Step-by-step explanation:

8*10=80 (the value of the the rectangle by itself)

then we take the values we are given and find the width and height of the triangle. Knowing it is a right triangle, we perform two equations,

15-10 (the total length of the polygon) 5 ft

and

8-6 (to find the height of the triangle, using the length where the hypotenuse of the triangle cuts off the rectangle) 2 ft

With this, we now have the length and width of the right triangle, and multiply them together to get 10. Because that formula only works on rectangles and squares, but we know that the triangle is a right triangle, we divide the 10 in half to get 5, which is the area of the triangle. Together, the value of the area for the rectangle and the triangle together result in 85 ft (remember to label units when in a written test!)

what is -7x-3y=-8 if y=-5

Answers

Answer:

3.29

Step-by-step explanation:

-7x-3(-5)=-8

-7x+15=-8

-15        -15

-7x=-23

/-7    /-7

x=3.29

Answer:

-1 , replace y by -5 then u will get 15 take to the other side -8-15=-23 then keep x alone divide both sides by -7 so x =3.28

Step-by-step explanation:

helpppppp
Which function has a smaller minimum? What is that minimum value?
a.f(x) has the smaller minimum. The minimum is -1.
b.g(x) has the smaller minimum. The minimum is -1.
c.g(x) has the smaller minimum. The minimum is -3.
d.f(x) has the smaller minimum. The minimum is -3.

Answers

Answer:

c. g(x) has the smaller minimum. The minimum is -3.

Step-by-step explanation:

Given functions

f(x) = (x - 1)^2 - 1 (graphed)

and

g(x) = (x - 1)^2 - 3

Comparing the vertex of the functions (the minimum), we see that:

f(x) has a vertex (1, -1)g(x) has a vertex (1, -3)

Correct option is c)

Solve for x please. Thank you!

Answers

Answer:

x = 9

Step-by-step explanation:

Similar triangles: scale factor is equal to 3/4, so 12 * 3/4 = 9, (smaller triangle with hypotenuse 12 is similar to big triangle)

What is the area of the triangle?

Answers

Answer:

im pretty sure its 16 if its not im rlly sorry

Step-by-step explanation:

Lee's paper clip is 32 feet long. He is going to add paper clips continually for the next eight hours. At the end of eight hours, the chain is 80 feet long. Find the unite rate of growth in feet per hour. Be sure to show your work and label your answer!

PLEASE HELP ME !

Answers

Answer:

6ft/hour

Step-by-step explanation:

Answer:

6 feet/hour

Step-by-step explanation:

I first found out exactly the amount of feet that was added. [tex]80-32=48[/tex]

Then I divided that by the amount of hours.  48 ÷ 8 = 6

HELP AND ILL LOBE U FORVEER

Answers

Answer:

A:4

Step-by-step explanation:

(12-4) + -8/2 = 8 + -4 = 4

hoped this helped!

Answer:

A

Step-by-step explanation:

(12-x)+y/2

(12-4)+-8/2

8+-8/2

4

Annie has a $50 gift card for a restaurant and arcade. Annie spent $23.75 on food and is ready to play games in the arcade each game cost $1.25. How many arcade games can annie play? ​

Answers

Answer:

21

Step-by-step explanation:

50 - 23.75 = 26.25

26.25 ÷ 1.25 = 21

PLEASE HELP ME I NEED TO DO THIS

Answers

Answer: x = 20

Step-by-step explanation:

3x + 20 = 4x

20 = x

help me with this! i’ll give brainliest

Answers

Answer: 2; 6; 10; 14

Step-by-step explanation:

multiply the s values by 4 the add 2

example: 4(0)+2=2

Can anyo help me thanks

Answers

Answer:

(-3, -5)

Step-by-step explanation:

We will multiply (6a -2b = -8) by -3, and (a - 3b = 12) by 2

Thus,

-18a + 6b = 24

2a - 6b = 24

=

-16a = 48

a= -3

Then we'll substitute,

-18(-3) + 6b = 24

54 + 6b = 24

6b = -30

b = -5

(-3, -5)

X + 84 2 -104 open or closed dot?​

Answers

Answer:

550505=5

Step-by-step explanation:

3(x+5)+x=7 What is X?

Answers

Answer:

x = -2

Step-by-step explanation:

Answer:

x = -2

Step-by-step explanation:

3(x+5) + x = 7 --> deal with parenthesis

4x + 15 = 7 --> subtract 15 from both sides

4x = -8

x = -2

How is theis function transformed from the parent function?
F(x) = [1/x-5] -1

Answers

-6 that’s the answer hope this helps

What is the area of a triangle with a height of 4mn^5 and a base of 5m^3n^4?

Answers

Answer: Area=10

Hope this helps (:

Please help I’m offering 20 points

Answers

Answer:

3/8

Step-by-step explanation:

2 x 3/8 = 6/8

6/8 divided by 2 is 3/8

PLS HELP ITS DUE IN 3 MINUTES

Answers

Answer:

H 33 degrees

Step-by-step explanation:

Select all tables that represent a proportional relationship between x and y.​

Answers

Answer:

1 and 2

Step-by-step explanation:

that is the answer

$33 dollars for 4 pizzas what is the ratio of dollars to pizzas

Answers

Answer:$8.25 per pizza

Step-by-step explanation:

divide the money spent by the pizzas and find the ratio

Giving brainliest
Which table represents the equation y = 8x?

Answers

Answer:

C

Step-by-step explanation:

The slope is 8 and it goes through the origin. In other words the y-intercept is 0.

Hope this helps.

Answer:

c

Step-by-step explanation:

Jean my action is selling jeans at a 15% off the regular price the regular price is 25.00 per pair what is the sale price of the jeans

Answers

Answer:

$21.25

Step-by-step explanation:

25 decrease 15% =

25 × (1 - 15%) = 25 × (1 - 0.15) = 21.25

In ΔQRS, the measure of ∠S=90°, QS = 11, SR = 60, and RQ = 61. What is the value of the sine of ∠Q to the nearest hundredth?

Answers

Answer:

0.98

Step-by-step explanation:

Below is a drawing of the triangle (drawing it out is an important step if you have trouble visualizing it).

Sine = opposite/hypotenuse, in this case, SR (60) is the opposite of angle Q and RQ (61) is the hypotenuse.

Sin(angle Q) = 60/61 = 0.98

Whats the unit rate for 49 points in 28 minutes?

Answers

Answer:

1.75 points per minute

Answer:

1.75 points per min

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

PLEASE HELP FOR 35 POINTS!

The relationship between the number of grams of carbohydrates in a loaf of bread and the number of calories the loaf
contains can be modeled by the equation y = 15x – 25, where x is the number of grams of carbohydrates, and y is
the number of calories. According to the model, which statements are correct? Select all that apply.
A. For every 1.0 gram increase in carbohydrates, the number of calories increases by about 25.0.
B. For every 2.0 gram decrease in carbohydrates, the number of calories decreases by about 30.0.
C. For every 3.5 gram decrease in carbohydrates, the number of calories decreases by about 87.5.
D. For every 7.5 gram increase in carbohydrates, the number of calories increases by about 112.5.
E. For every 10.0 gram increase in carbohydrates, the number of calories increases by about 15.0.

Answers

Answer: It would be b B. For every 2.0 gram decrease in carbohydrates, the number of calories decreases by about 30.0.

Step-by-step explanation:

your answer would be b

3x² + 8x + 5 = 0 method of completing square.
plz help me I have lots of assignment.​

Answers

Answer:

the answer is (x+1)(3x-5)

Answer:

X=-1,-[tex]\frac{5}{3}[/tex]

Step-by-step explanation:

can u pls help me with this question asap​

Answers

Answer:

I think its b sorry if its wrong tho

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