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tensa zangetsu [6.8K]
4 years ago
7

Answer these questions please

Mathematics
2 answers:
larisa86 [58]4 years ago
5 0

Answer:

Step-by-step explanatiofisrt is fgyusdagaeijkgsfaieorispdkgjohgiareukguykhtnlieqt

jeka57 [31]4 years ago
3 0

Answer:

9 is C. 10 is b.

Step-by-step explanation:

hope this helps

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4•f(6)-6•g(5)=?<br> i need help ASAP!
adell [148]

Answer:

6

Step-by-step explanation:

f(6) from the graph is -6

g(5) from the graph is -5

4*f(6)-6*g(5)=(4)(-6)-(6)(-5)=-24+30=6

5 0
3 years ago
If a number n has exactly 7 divisors, how many divisors does n squared have?
Anna [14]
A number n=p_1^{a_1}\cdot p_2^{a_2}\cdot\ldots\cdot p_k^{a_k}, where p_k are distinct prime numbers, has (a_1+1)(a_2+1)\cdot\ldots\cdot(a_k+1) divisors.

We know that n has 7 divisors. 7 is a prime number, so among the numbers a_1+1,a_2+1,\ldots,a_k+1 there is only one that is equal to 7.

So,
a_k+1=7\\&#10;a_k=6

That means n=p^6 where p is a prime number.
n^2=(p^6)^2=p^{12}, therefore the n^2 has 12+1=13 divisors.
4 0
3 years ago
Tracy recieves payments of $X at the end of each year for n years. The present value of her annuity is 493. Gary receives paymen
vladimir1956 [14]

Answer:

v = 1/(1+i)

PV(T) = x(v + v^2 + ... + v^n) = x(1 - v^n)/i = 493

PV(G) = 3x[v + v^2 + ... + v^(2n)] = 3x[1 - v^(2n)]/i = 2748

PV(G)/PV(T) = 2748/493

{3x[1 - v^(2n)]/i}/{x(1 - v^n)/i} = 2748/493

3[1-v^(2n)]/(1-v^n) = 2748/493

Since v^(2n) = (v^n)^2 then 1 - v^(2n) = (1 - v^n)(1 + v^n)

3(1 + v^n) = 2748/493

1 + v^n = 2748/1479

v^n = 1269/1479 ~ 0.858

Step-by-step explanation:

6 0
4 years ago
How much water does it take to completely fill a small pool that is 10 feet long, 20 feet wide and 10 feet deep?
irinina [24]

Answer:

2,000 feet cubed

Step-by-step explanation:

To find volume, you use the formula Length x Width x Height. When you plug in the numbers from this equation into that formula you get 10 x 20 x 10. 10 x 20 x 10 = 2,000.

8 0
4 years ago
Read 2 more answers
Find the missing term of the following sequence.<br> . . .-34,____, 77, . .
allsm [11]

Answer:

21.5

Step-by-step explanation:

Just find the find the difference between 34 and 77 (even though 34 is a negative) then half the answer.

6 0
3 years ago
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