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3 years ago

Choose one of the factors of x^15 − 64.

1 answer:

6 0

x^15 − 64
= x^15 - 4^3
=(x^5)^5 - 4^3
= (x^5 - 4) (x^10 + 4x^5 + 16)

answer
a. x^5 − 4

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There are three concerts at lakeside one has 953 as attendance and the other 2 have 1100 as the attendance what is the average o

Vilka [71]

You have to add all three concerts 953+1100+1100 =3,163
And the answer you have divided by 3
The average of people at the concerts were 1,054

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4 years ago

What is the volume of a cylinder that is 15-m tall and has a radius of 3 m. Use 3.14 for π, and round your answer to the nearest

Agata [3.3K]

Answer:

D. 424 m³

Step-by-step explanation:

Use the formula for the volume of a cylinder

V = $\pi$ r²h

Plug in the values we know

V = (3.14)(3²)(15)

V = 423.9 m³

This is closest to answer choice D, 424 m³

So, D is correct

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3 years ago

A bag has 5 red marbles, 4 blue marbles, 8 green marbles, and 3 yellow

kozerog [31]

Answer:

40% of the total marbles are green.

Step-by-step explanation:

Percentage: Green marbles/Total marbles

=> 8/5 + 4 + 8 + 3
=> 8/20

Percentage formula: $\frac{a}{b} (100)$

=> 8/20 x 100
=> 8 x 5
=> 40

Hence, 40% of the total marbles are green.

Hoped this helped.

$BrainiacUser1357$

7 0

3 years ago

shira was riding the screamer when it broke down. her seat was 53 jorizontal feet from the central support pole. What was her se

ki77a [65]

Answer:

The possible solutions are 58 degree, 122 degrees, 302 degrees and 238 degrees

Step-by-step explanation:

Please see the attachment

From the figure, it is evident that

cos AOB = OB/OA = 53/100 = 0.53

Thus, cos-1 (0.53) = 58 degrees

AOB = 58 degree

Also, there are can be other values depending on the quadrants

COB = 180 -58 = 122 degrees

FOB = 360 -58 = 302 degrees

EOB = 180 + 58 = 238 degrees

5 0

3 years ago

To create a giant gemstone, sara first made two identical square pyramids that each had a base area of 100 square inches. Then s

inysia [295]

Answer:

8 inches.

Step-by-step explanation:

From the statement we have that they first made two identical square pyramids, each with a base area of 100 square inches.

Ab = s ^ 2 = 100

Therefore each side would be:

s = (100) ^ (1/2)

s = 10

So, side of the square base = 10 inches

Then they tell us that they glued the bases of the pyramids together to form the precious stone. The surface area of the gemstone is 520 square inches, so for a single pyramid it would be:

Ap = 520/2 = 260

For an area of the square pyramid we have the following equation:

Ap = 2 * x * s + s ^ 2

Where x is the height of each triangular surface and s is the side of the square base

Replacing we have:

260 = 2 * x * 10 + 10 ^ 2

20 * x + 100 = 260

20 * x = 160

x = 160/20

x = 8

Therefore, the value of x is 8 inches.

5 0

3 years ago