4 years ago

Please need help if you help me you get brainlist

Mathematics

1 answer:

a_sh-v [17]4 years ago

4 0

The answer is A ( need points)

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Factorize a⁴-6a²-7-8x-x²

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Answer:a⁴-7-x²-6a²-8x

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2 years ago

Steven has some money. If he spends $9.00, then he will have 3/5 of the amount he started with

ELEN [110]

Answer:

m - 9 = 3/5 m (Steve has some money. After spending $9, he now has 3/5 of his original amount)

So it's just the matter of isolating m. Subtract m from both sides:

-9 = -2/5 m

Now you just need to multiply both sides by -5/2 to get your final answer.

Step-by-step explanation:

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3 years ago

Company A has 400 employees and Company B has 500 employees. Among these employees, there are 50 married couples, each consistin

abruzzese [7]

Answer:0,0025

Step-by-step explanation:

P(select a married couple) = P(person selected from Company A is one of the 50 with spouse at Company B) x P(person selected from Company B spouse of person already selected from Company A)

Now you can substitute the respective probabilities .

= (50/400) x (1/500)

= 0,0025

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3 years ago

Find the volume (in terms of pi) of a sphere of its surface area is 400 pi ft2

elixir [45]

$\bf \textit{surface area of a sphere}\\\\ SA=4\pi r^2\qquad \qquad \implies \stackrel{SA}{400\pi }=4\pi r^2\implies \cfrac{400\pi }{4\pi }=r^2 \\\\\\ 100=r^2\implies \sqrt{100}=r\implies \boxed{10=r} \\\\\\ \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\qquad \qquad V=\cfrac{4\pi \boxed{10^3}}{3}\implies V=\cfrac{4000\pi }{3}$

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3 years ago

Read 2 more answers

4.64 × 10^2 in standard form

Effectus [21]

Answer:

464

Step-by-step explanation:

Hope This Helps!

5 0

4 years ago