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3 years ago

I need help plssss! Help me quick i need the answer plss and thank you!

Mathematics

1 answer:

harkovskaia [24]3 years ago

7 0

Answer:

40%

Step-by-step explanation:

So, there are 60 students for B. So, what I did was add all the students to get 150. Then I divided 60 by 150 (60/150) to get 0.4. 0.4 * 100 is 40 which is the percent. Hope this helps.

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3 years ago

51 less than the product of 7 and a number is 19. What is the number?

Firlakuza [10]

Answer:

Step-by-step explanation:

51+19=70

70/10=7

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3 years ago

A company claims that its new bottle holds 25% more laundry soap. If their original container held 53 fluid ounces of soap, how

Naddik [55]

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3 years ago

Read 2 more answers

The curve with the equation y=8x^2 + 2/x has one turning point.

anyanavicka [17]

Answer:

(1/2, 6).

Step-by-step explanation:

Turning points in a graph may exist whenever the derivative equals 0. Hence, let’s differentiate and then solve our function.

We have:

$\displaystyle y=8x^2+\frac{2}{x}$

Take the derivative of both sides with respect to x:

$\displaystyle y^\prime=16x-\frac{2}{x^2}$

Simplify:

$\displaystyle y^\prime=\frac{16x^3-2}{x^2}$

We will now set this equal to 0 and solve for x. Hence:

$\displaystyle \begin{aligned} 0&=\frac{16x^3-2}{x^2} \\ 0&=16x^3-2 \\ 2&=16x^3 \\ \frac{1}{8}&=x^3 \\ \frac{1}{2}&=x \end{aligned}$

Hence, the graph turns at x=1/2. This is the x-coordinate.

Then it follows that the y-coordinate will be:

$\displaystyle{\begin{aligned} y&=8(\frac{1}{2})^2+\frac{2}{\frac{1}{2}} \\ y&=8(1/4)+2(2) \\ y&=2+4 \\ y&=6\end{aligned}$

Hence, our coordinate Is (1/2, 6).

8 0

3 years ago

I need help with this

Dafna11 [192]

Answer:

x = -9

Step-by-step explanation:

The attachment shows the labeling according to the problem statement.

The overall length is the sum of the constituent segment lengths, so ...

FG + GH = FH

(10 +x) +(7) = (2x +26)

x +17 = 2x +26

x -9 = 2x

-9 = x

<em>Check</em>

Then the segment length FG is ...

10 +x = 10 -9 = 1

and the overall length is ...

2x +26 = 2(-9) +26 = -18 +26 = 8

That is, 1 + 7 = 8.

5 0

4 years ago