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Whitepunk [10]
2 years ago
8

Please help. Is algebra. PLEASE HELP NO LINKS OR FILES. I don't want links.

Mathematics
1 answer:
borishaifa [10]2 years ago
5 0
The answer is c




hope that helps :)))
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Enter the answer in the space provided.
Dennis_Churaev [7]

Answer:

Part 1: 1 mile.

Part 2: 1.32 mph.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Evaluate 2^-5<br><br> A. -32<br> B. 1/32<br> C. -1/32<br> D. 32
steposvetlana [31]

Answer:

B. 1/32

Step-by-step explanation:

8 0
3 years ago
does anyone know how to do he first question? I need steps on how to do it ill give brainlist if you've explained it real good.
kogti [31]

Answer:

just circulate little numbers of the answers bellow -_-

Step-by-step explanation:

cause u said "does anyone know how to do the first question?"

8 0
2 years ago
Given the function f(x)=3x+5a / x^2-a^2 find the value of a for which f'(12) = 0
maria [59]
The function, as presented here, is ambiguous in terms of what's being deivded by what.  For the sake of example, I will assume that you meant

           3x+5a
<span> f(x)= ------------
</span>          x^2-a^2

You are saying that the derivative of this function is 0 when x=12.  Let's differentiate f(x) with respect to x and then let x = 12:

             (x^2-a^2)(3) -(3x+5a)(2x)
f '(x) = ------------------------------------- = 0 when x = 12
                [x^2-a^2]^2

(144-a^2)(3) - (36+5a)(24)
------------------------------------  =  0
               [   ]^2

Simplifying,

(144-a^2) - 8(36+5a) = 0

144 - a^2 - 288 - 40a = 0

This can be rewritten as a quadratic in standard form:

-a^2 - 40a - 144 = 0, or a^2 + 40a + 144 = 0.

Solve for a by completing the square:

a^2 + 40a + 20^2 - 20^2 + 144 = 0
        (a+20)^2    = 400 - 144 = 156

        Then a+20 = sqrt[6(26)] = sqrt[6(2)(13)] = 4(3)(13)= 2sqrt(39)

         Finally, a = -20 plus or minus 2sqrt(39)

You must check both answers by subst. into the original equation.  Only if the result(s) is(are) true is your solution (value of a) correct.
6 0
3 years ago
How do I find the degrees
Natalija [7]
U mutiply the two mumber then then divide by 2
5 0
3 years ago
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