Answer:
b i belive i may be incorrect
Step-by-step explanation:
A=
![\frac{a+b}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%2Bb%7D%7B2%7D%20)
h =
![\frac{5.5+3.75}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5.5%2B3.75%7D%7B2%7D%20)
(3)= 13.875
13.875 in a fraction is B. 13 7/8 in^2
First to answer
Answer:
A. The coefficients of z are the same, but the constant terms are different.
Step By step Explanation:
2(z – 1) = 4(z + 5)
Step 1: Simplify both sides of the equation.
2(z−1)=4(z+5)
(2)(z)+(2)(−1)=(4)(z)+(4)(5)(Distribute)
2z+−2=4z+20
2z−2=4z+20
Step 2: Subtract 4z from both sides.
2z−2−4z=4z+20−4z
−2z−2=20
Step 3: Add 2 to both sides.
−2z−2+2=20+2
−2z=22
Step 4: Divide both sides by -2.
−2z/−2 = 22/−2
z=−11
The coefficients for z are the same, but the constants are different.
Answer:
B) (-1, -4)
Step-by-step explanation:
Because -4=4(-1), since (x, y)=(-1, -4).
Please mark me as Brainliest if you are satisfied with the answer.
Answer:
The answer is option b.
<h2>144π</h2>
Step-by-step explanation:
Surface area of a sphere is 4πr²
where r is the radius
diameter = radius / 2
<h3>
<u>For Big </u><u>sph</u><u>ere</u></h3>
radius = 15 / 2 = 7.5in
Surface area = 4π(7.5)²
= 225π
<h3><u>Small </u><u>sph</u><u>ere</u></h3>
radius = 9/2 = 4.5in
Surface area = 4π(4.5)²
= 81π
Difference of the surface areas is
Surface area of big sphere - surface area of small sphere
Which is
225π - 81π
<h3>= 144π</h3>
Hope this helps you.