144 < 165 < 169
sqrt (144) < sqrt(165) < sqrt (169)
12< sqrt(165) < 13
C) It lies between 12 and 13 on a number line.
Choice C
Answer:
b = 43
Step-by-step explanation:
So let's plug things in first:
y= 2x - 20 and y= -5x +b which can become →
2x - 20 = -5x + b (now you said that x=9 so let's plug that in)
2(9) -20 = -5(9) + b (now try solving that)
18 -20 = -45 + b → -2 = -45 + b ( so then add 45 to both sides)
43 = b ( and there's your answer )
We have:
5(x + 7) = 85 |divide both sides by 5
x + 7 = 17 |subtract 7 from both sides
x = 10
The correct question is
Find the volume of a <span>cylinder with base area 25 pi cm squared and height 3 cm more than the radius
we know that
</span>[the volume of a cylinder]=[area of the base]*[height]
[area of the base]=25pi cm²
[area of the base]=pi*r²--------> r²=[area of the base]/pi----> r²=25pi/pi
r²=25--------> r=5 cm
the height is 3 cm more than the radius
so
height=3+5-----> height=8 cm
[the volume of a cylinder]=[25pi]*[8]------> 200pi cm³
the answer is
200pi cm³
Answer:
The answer is C.
Step-by-step explanation:
