20 Points

Mathematics

2 answers:

liq [111]3 years ago

6 0

Answer: it should be 1 and 2

Step-by-step explanation:

Adding and subtracting equal amounts to both sides should balance them out.

MArishka [77]3 years ago

3 0

Answer:

A negative number is added to both sides of an inequality.

A negative number is subtracted from both sides of an inequality.

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Which statement best describes the polynomial 2x + 8?

weeeeeb [17]

There are two (2) terms, "2x" and "8", making it a "binomial" (the "bi" prefix meaning "two"). The only variable is x, and its power is 1, making the "2x" term a first-degree term. Since the highest degree of any term is 1, the polynomial is first degree.

Selection A is appropriate.

7 0

3 years ago

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

IgorLugansk [536]

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.