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Artemon [7]
3 years ago
12

Use the ruler to find the length of the yarn. This distance around the circle is the ____________________ of the circle.

Mathematics
1 answer:
vova2212 [387]3 years ago
7 0
Circumference is the distance around the circle
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The factorization of 8x3 – 125 is (2x – 5)(jx2 + kx + 25). What are the values of j and k
Inga [223]

Answer:

j=4\\k=10

Step-by-step explanation:

8x^3 - 125

\left(2x\right)^3-5^3

Use this formula:

x^3-y^3=\left(x-y\right)\left(x^2+xy+y^2\right)

Where,

x=2x\\y=5

Substitute in the values.

\left(2x\right)^3-5^3=\left(2x-5\right)\left(2^2x^2+5\cdot \:2x+5^2\right)

\left(2x-5\right)\left(4x^2+10x+25\right)

4 0
3 years ago
7100 dollars is placed in an account with an annual interest rate of 7.75%. How much will be in the account after 30 years, to t
Evgen [1.6K]

Answer:

$66,646.40 is the answer

Step-by-step explanation:

8 0
3 years ago
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8. How many ways can a committee of 5 students be chosen from a student council of 30 students? Is the order in which the member
tankabanditka [31]

Answer: A committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

No , the order in which the members of the committee are chosen is not  important.

Step-by-step explanation:

Given : The total number of students in the council = 30

The number of students needed to be chosen = 5

The order in which the members of the committee are chosen does not matter.

So we Combinations (If order matters then we use permutations.)

The number of combinations of to select r things of n things = ^nC_r=\dfrac{n!}{r!(n-r)!}

So the number of ways a committee of 5 students can be chosen from a student council of 30 students=^{30}C_5=\dfrac{30!}{5!(30-5)!}

=\dfrac{30\times29\times28\times27\times26\times25!}{(120)\times25!}=142506

Therefore , a committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

4 0
3 years ago
Will mark brainliest for 2 possible answers (WITH NO LINKS AND ANSWERS WITHOUT EXPLANATION)
Kamila [148]

Answer:

Equation in cubed form is x^3+7x^2+7x-15

Step-by-step explanation:

7 0
2 years ago
If you place a 41-foot ladder against the top of a 40-foot building, how many feet will the bottom of the ladder be from the bot
garri49 [273]

Answer:

9

Step-by-step explanation:

The ladder is the hypotenuse, the wall is one of the legs. In order to find the other leg you have to do c^2-a^2=b^2. 41^2-40^2 is 81 and the square root of that is 9

5 0
3 years ago
Read 2 more answers
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