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Artist 52 [7]
3 years ago
5

20 points! I need help on these!

Mathematics
2 answers:
charle [14.2K]3 years ago
4 0
16) -40
17) -2
18) -5
19) -10
That’s all.
natta225 [31]3 years ago
4 0

Answer:

Step-by-step explanation:

16) -40

17) -2

18) -5

19) -10

That’s all.

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HELP PLEASE
Illusion [34]

Answer:

V=7.45\times 10^{15}\ mm^3

Step-by-step explanation:

The radius of each lollipop is 121212 mm

We need to find the volume of each lollipop. The volume of a sphere is given by :

V=\dfrac{4}{3}\pi r^3

Put all the values,

V=\dfrac{4}{3}\times 3.14\times  (121212 )^3\\\\V=7.45\times 10^{15}\ mm^3

So, the volume of each lollipop is equal to 7.45\times 10^{15}\ mm^3.

4 0
3 years ago
Kai calculates that he spends 75 minutes of a school day in science class. if he spends 500 minutes in school, what percent of h
Ne4ueva [31]
(75/500) x 100
=(3/20) x100
=15%
5 0
3 years ago
You purchase a new shirt that cost $15.00. Sales tax is added at the register at a rate of 8%. How much sales tax will be added
zhannawk [14.2K]

Answer:

16.2 U.S. Dollars  -  I hope this helps! :D

Step-by-step explanation:

8 0
3 years ago
Select the correct answer.
NeTakaya

The rational expression that results into x-4/2(x+4) is<em> x²-16/2x+8 * x+4/x²+8x+16</em>

<h3>Multiplying rational expressions</h3>

Rational expressions are written in the form a/b where a and b are integers.

According to the question, we need to determine the expression that is equal to x-4/2(x+4)

From the fourth option;

x²-16/2x+8 * x+4/x²+8x+16

Factorize the quadratic part to have;

x²-16/2x+8 * x²+8x+16/x+4

(x+4)(x-4)/2(x+4) * x+4/(x+4)^2

Cancel out the common expression to have;

x-4 * 1/2(x+4)

x-4/2(x+4)

Hence the rational expression that results into x-4/2(x+4) is<em> x²-16/2x+8 * x+4/x²+8x+16</em>

Learn more rational expression here: brainly.com/question/25292194

#SPJ1

3 0
1 year ago
Can any one solve this.Please
never [62]

Answer:

True

Step-by-step explanation:

The first derivative tells you the slope of the graph at a specific point. If f'(c) =0, then that means that at f(c), the slope of the graph is 0. It is neither going up nor down

The second derivative tells you the slope of the slope of the graph. If f''(c) < 0, this means that the slope is decreasing. This means that going from the left to f(c), the slope is greater than the slope at f(c), and going from f(c) to the right, the slope is less than the slope at f(c).

Therefore, since the slope at f(c) is 0, the slope is positive to the left of f(c) and negative to the right of f(c). This means that the graph is going up until it hits f(c) and then goes down. Because f(c) is greater than the values to the left of it (because it is going up until it hits f(c)) and the values to the right of it (because it is going down past f(c)), f(c) is a local maximum

8 0
3 years ago
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