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mihalych1998 [28]

2 years ago

7

A stereo speaker in the shape of a triangular pyramid has a height of 6 inches. The area of the base of the speaker is 11 square

inches.
What is the volume of the speaker in cubic inches?

a. 22 cubic inches
b. 198 cubic inches
c. 66 cubic inches
d. 33 cubic inches

1 answer:

lisabon 2012 [21]2 years ago

8 0

Either c or b. Most likely b

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Find the leading coefficient and write the factored form of the function of least degree for the polynomial in the graph below.

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2 years ago

Need help with this....

Yakvenalex [24]

Answer:

$\boxed{\dfrac{f(a+h)-f(a)}{h}=-3a^2-3ah-h^2}$

Step-by-step explanation:

$f(x)=-x^3+2\\\\\dfrac{f(a+h)-f(a)}{h}\\\\f(a+h)\to\text{substitute x = a + h}\\f(a)\to\text{substitute x = a}\\\\\dfrac{f(a+h)-f(a)}{h}=\dfrac{-(a+h)^3+2-(-a^3+2)}{h}\\\\\text{use}\ (x+y)^3=x^3+3x^2y+3xy^2+y^3\\\\=\dfrac{-(a^3+3a^2h+3ah^2+h^3)+2-(-a^3)-2}{h}\\\\=\dfrac{-a^3-3a^2h-3ah^2-h^3+2+a^3-2}{h}\\\\\text{combine like terms}$

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6 0

2 years ago

1. How many squares will it take<br> to cover the figure below?

Ne4ueva [31]

Answer:

Unable to tell you

Step-by-step explanation:

Due to the fact we can't see the shape below, we are unable to help you. make sure to post a picture next time!

8 0

3 years ago

PLEASE ANSWERRRRRRRRR

Vikki [24]

Answer: 4/5

Step-by-step explanation:

The slope : rise over run, or the change in y/ change in x

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Change in x = 50 (50 - 100)

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3 years ago

Candice is preparing for her final exam in Statistics. She knows she needs an 74 out of 100 to earn an A overall in the course.

Salsk061 [2.6K]

Answer:

Hence the correct option is option b) Yes, the upper level of one standard deviation is 72.

A score of 74 is not within one standard deviation of the mean.

Step-by-step explanation:

Here the given details are,

Mean = 68

SD = 4

Distribution is normal.

Z-score for x = 74 is given as below:

$Z = (X - mean)/SD\\Z = (74 - 68)/4\\Z = 1.5$

So, the score of 74 is 1.5 standard deviations from the mean.

$Mean + 1\timesSD = 68 + 1\times4 = 72Mean - 1\timesSD = 68 - 1\times4 = 64$

Therefore the score is not lies between 64 and 72.

Yes, the upper level of one standard deviation is 72.

3 0

2 years ago