Which expression is equivalent to 8.6(x – 1) + 8x

Mathematics

1 answer:

Westkost [7]3 years ago

5 0

Answer:

Step-by-step explanation:

Here you go mate

Step 1

8.6(x – 1) + 8x Equation/Question

Step 2

8.6(x-1) + 8x Simplify

8.6x+-8.6+8x

Step 3

8.6x+-8.6+8x Combine the terms

(8.6x+8x)+(-8.6)

Step 4

(8.6x+8x)+(-8.6) Add them

Answer

16.6x-8.6

Hope this helps

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Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 3000

defon

Answer:

a) 80
b) 56

Step-by-step explanation:

a) Calculate the volume of the the cup using volume of cylinder equation: $V = \pi r^{2} h$

Where V = Volume, r=radius, and h=height. Your answer should be in cubic inches ( $in^3$ ).
You're given diameter, so use equation $d/2 = r$ to find radius.
Substituting these equations will give you: $V = \pi (d/2)^2 h$
However, the given volume of the sink is 3000 $\pi$ , meaning that you should modify your results to match this value. Do not substitute $\pi$ for 3.14..., leave it as a symbolic value. Your final V of the cup should = 37.5 $\pi$
Divide the volume of the sink by the volume of the cup. This number will be the amount of cups needed to empty it. In equation form:
$Vsink / V cup =$ # of cups.
Note the the $\pi$ will cancel each other out, so there's not need to factor that in.
b) Repeat the steps above with the new d (diameter) value.