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Galina-37 [17]
2 years ago
5

U2+10u+21 factor this plz i dont know how

Mathematics
1 answer:
Lady_Fox [76]2 years ago
8 0
(u - 3) • (u - 7) I believe
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Two young sumo wrestlers decided to go on a special diet to gain weight rapidly. They each gained weight at a constant rate. The
Radda [10]

Answer: the first wrestler gains more at the beginning, the second wrestler gains more faster

Step-by-step explanation:

5 0
3 years ago
Debbie works in a warehouse. Each cart that she uses to move boxes can hold no more than 200 pounds. If each box she puts on the
Nady [450]

Answer:

She can put a maximum of 10 boxes in the cart.

Step-by-step explanation:

Given that each cart that Debbie uses to move the boxes supports a maximum of 200 pounds, and that each box that she places in the cart weighs 20 pounds, to determine the maximum number of boxes that can fit in the cart, the following calculation must be performed :

200/20 = X

20/2 = X

10 = X

Thus, she can put a maximum of 10 boxes in the cart.

5 0
2 years ago
Simplify 3r+n2-r+5-2n+2
Ksenya-84 [330]

2r+7+2n+n2

Because I combined the ones with like terms.

8 0
3 years ago
Read 2 more answers
Consider the function f given by f(x)=x*(e^(-x^2)) for all real numbers x.
NISA [10]

Answer:

\frac{\sqrt{\pi}}{4}

Step-by-step explanation:

You are going to integrate the following function:

g(x)=x*f(x)=x*xe^{-x^2}=x^2e^{-x^2}  (1)

furthermore, you know that:

\int_0^{\infty}e^{-x^2}=\frac{\sqrt{\pi}}{2}

lets call to this integral, the integral Io.

for a general form of I you have In:

I_n=\int_0^{\infty}x^ne^{-ax^2}dx

furthermore you use the fact that:

I_n=-\frac{\partial I_{n-2}}{\partial a}

by using this last expression in an iterative way you obtain the following:

\int_0^{\infty}x^{2s}e^{-ax^2}dx=\frac{(2s-1)!!}{2^{s+1}a^s}\sqrt{\frac{\pi}{a}} (2)

with n=2s a even number

for s=1 you have n=2, that is, the function g(x). By using the equation (2) (with a = 1) you finally obtain:

\int_0^{\infty}x^2e^{-x^2}dx=\frac{(2(1)-1)!}{2^{1+1}(1^1)}\sqrt{\pi}=\frac{\sqrt{\pi}}{4}

5 0
2 years ago
Read 2 more answers
What is two times two
Sav [38]

Answer:

4

Step-by-step explanation:

4 0
2 years ago
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