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2 years ago

Helppppppppppp please and expalin if you can

Mathematics

1 answer:

Klio2033 [76]2 years ago

8 0

The angle subtended by a diameter is always right. That's Thales' Theorem, one of the first in geometry. We conclude y=90°.

The angle subtended by an arc is half the arc length, so z=50°.

The angles in a triangle add to 180°, so x = 180° - y - z = 40°.

Answer: x=40°, y=90°, z=50°

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9 stores is 3% of how many stores?

hichkok12 [17]

Hello there! We can solve this question by writing and solving a proportion. Set it up like this:

9/x = 3/100.

This is because 9 is 3% of x number of stores and percents are parts of 100. Setting it up like this will help us get the correct answer. Cross multiply the values . 9 * 100 is 900 and 3 * x = 3x. You get 900 = 3x. Now, divide each side by 3 to isolate the x. 3x/3 cancels out the x. 900/3 is 300. There. x = 300. 9 stores is 3% of 300 stores.

3 0

3 years ago

Read 2 more answers

answer correctly for 70 points but if rong i will report u and get all ur points and mine back and u banned

12345 [234]

Answer:

11) 0.6

12) The maximum height of the ball was 2[ seconds] after it was thrown (I am assuming because the answers are cut off a bit.)

13) $2.50

14) (2,-15)

15) I don't know, since I can't see all the graphs and options. But I want to say the sideways parabola, or the only one shown in the image given

4 0

2 years ago

On a town map, each unit of the coordinate plane represents 1 mile. Three branches of a bank are located at A(−3, 1), B(3, 4), a

Mumz [18]

Answer:

9.7 miles

Step-by-step explanation:

The shortest distance between 2 points is a straight line

The distance from point A to point B is

d = sqrt( ( x2-x1)^2 + ( y2-y1) ^2)

d = sqrt( ( 3 - -3)^2 + ( 4-1) ^2)

d = sqrt( ( 6)^2 + ( 3) ^2)

d = sqrt(36+9)

d = sqrt(45)

d =6.7 to the nearest tenth

The distance from point B to point C is

d = sqrt( ( x2-x1)^2 + ( y2-y1) ^2)

d = sqrt( ( 3 - 3)^2 + ( -2-4) ^2)

d = sqrt( ( 0)^2 + ( -6) ^2)

d = sqrt(36)

d = 6

But They only made it half way so 1/2 (6) =3

Add the distances together

6.7+3 = 9.7 is the minimum distance

7 0

3 years ago

Carrie gave her hairstylist a $4.20 tip. The tip was 15% of the cost of the haircut. Write an equation to find h, the cost of th

Alona [7]

Answer:

Step-by-step explanation:

you could wright the equation like 15/100=4.20/x

All I did is 100 divided by 15, which is 6.6666667, and then multiply that number by 4.20.

I hope this helped you!

4 0

2 years ago

How old is molly if she was 52 years old when she was fourteen years ago?

meriva

To solve a problem like this, we can setup a basic algebraic equation.

52+14=x
66=x

We know this equation is true because 14 years ago, she was 52 so 14 years later, she is 66.

8 0

3 years ago