All categories

2 years ago

Z divided by 3-2z + 4(z-8) when z = 18 A. -122 B. 6 C. -66 D. 10

Mathematics

1 answer:

murzikaleks [220]2 years ago

3 0

Everywhere you see z, replace the letter with 18.

z/[(3- 2z)] + 4(z - 8)

18/[(3 - 2(18))] + 4(18 - 8)

You finish.

You might be interested in

Can u pls help me with this thanks

aleksandrvk [35]

Hey!!!

<a and <b are complementary angles.

Those angles which are exactly 90 degree are called complementary angles.

hope it helps..

7 0

3 years ago

A television costs $270.25 including 15% tax. How much of cost is the tax

My name is Ann [436]

Answer:

229.7125

Step-by-step explanation:

4 0

3 years ago

What is m∠PTR? a. 12 b. 40 c. 50 d. 140 HELP!!!

kramer

Answer:

m<PTR = 140°

Step-by-step explanation:

First, find the value of x. To find the value of x, derive an equation which you'd use in solving for x.

m<PTQ = (x + 28)°

m<RTS = (2x + 16)°

m<PTQ = m<RTS (vertical opposite angles are congruent)

Therefore:

x + 28 = 2x + 16

Solve for x. Combine like terms

28 - 16 = 2x - x

12 = x

x = 12

Find m<PTQ

m<PTQ = (x + 28)

plug in the value of x

m<PTQ = 12 + 28 = 40°

m<PTR + m<PTQ = 180° (supplementary angles)

m<PTR + 40° = 180° (substitution)

m<PTR = 180 - 40 (subtracting 40 from each side)

m<PTR = 140°

3 0

2 years ago

How do I explain the steps to the question involving the pie?

jok3333 [9.3K]

Answer:

Area = pi x radius squared

the radius is 2.39 so that's squared that is 5.7121pi

Step-by-step explanation:

4 0

3 years ago

Please help!! I don't know what to do :(

elena55 [62]

Yo sup??

This question can be solved by applying the properties of similar triangles

the triangle with sides 5x and 20 is similar to the triangle with sides 45 and 36

therefore we can say

5x/45=20/36

x=5 units

Hope this helps

8 0

2 years ago