MATHEMATICS MIDDLE SCHOOL

What is the value of the expression shown when x = –3?

7 + 2(x – 9) – (x + 2)

Answers

Answer 1
Answer: To find the value of your expression, you could use the following steps;

First lets substitute the value of x in the equation;

7 + 2(-3 - 9) - (-3+ 2)

Next, simplify the parenthesis;

7 + 2(-12) - (-1)
7 - 24 + 1 = -16

So your final answer would be; -16
Answer 2
Answer: sub -3 for every x

7+2(-3-9)-(-3+2)
PEMDAS
simplify inside parenthases first
-3-9=-12
-3+2=-1
now we have
7+2(-12)-(-1)
multiplictaion
2(-12)=-24
-(-1)=1
now we have
7-24+1
-17+1
-16 is reault

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The base of a 6-inch long ice cream cone with a diameter of 2 inches, is cut 0.25 inches from the base. This cut creates two shapes, one is a cone, and the other one resembles a cylinder since it was cut so close to the base. What is the BEST estimate for the volume of the shape that resembles a cylinder? A) 0.26 cubic inches B) 0.52 cubic inches C) 0.79 cubic inches D) 2.66 cubic inches

Answers

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So, Height of the cylinder = 0.25 inches

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