3 years ago

PLS HELP ILL MARK BRAINEST DUE IN 20 minsss

Mathematics

1 answer:

stiks02 [169]3 years ago

5 0

Answer:

ill help

Step-by-step explanation:

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The product of two positive numbers is 120. One number is 7 more than the other. Determine the two numbers

Sati [7]

Xy= 120
x= 7+y

(7+y)(y) = 120
y^2 + 7y - 120 = 0
(y + 15) (y - 8) = 0

Since we are finding two positive numbers,
If y= 8 then x= 15

The two numbers are 8 and 15

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3 years ago

Find the radius of the sphere with the given volume<br><br>volume= 9/16 (pie symbol)ft cubed

xz_007 [3.2K]

Remember, the volume formula of a sphere is $\frac{4}{3} \pi r^{3}$ .

Set that equation equal to whatever volume they give you and solve for r.

$\frac{4}{3} \pi r^{3}$ = $\frac{9}{16} \pi$

Now solve for r! I know you can do this. If you need help, just comment.

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3 years ago

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Lena [83]

Answer:

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2 years ago

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The National Aeronautics and Space Administration (NASA) purchased a new solar-powered battery guaranteed to have a failure rate

Reptile [31]

Answer:

The probability that all three batteries would fail is given as:

= 0.000125

Step-by-step explanation:

Given that the probability of the new battery failing = 1/20 or 0.05,

Therefore, the probability that all three batteries would fail is given as:

= Probability of battery A failing * Probability of battery B failing * Probability of battery C failing

= P(A)*P(B)*P(C)

= 0.05 * 0.05 * 0.05

= 0.000125

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3 years ago

(x^2-7x)^2+4(x^2-7x)-96 (x 2 −7x) 2 +4(x 2 −7x)−96

natita [175]

Answer:

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Step-by-step explanation:

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2 years ago