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goblinko [34]
3 years ago
12

Suppose y varies directly with x, and y = -4 when x = 25. What is x when y = 10? SHOW ALL YOUR WORK HERE OR YOU WON'T GET CREDIT

!
Mathematics
1 answer:
Stolb23 [73]3 years ago
6 0

Answer:

x = -62.5

Step-by-step explanation:

y = kx

-4 = k(25)

k = -4/25

y = (-4/25)x

10 = (-4/25)x

x = 10 × 25/-4

x = -62.5

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What is the answer using the majic method of factoring?
NeX [460]
2x² - 15x + 7
(2x - 1)(2x-14)

(2x - 1)(x - 7) x= 1/2 or 7
7 0
3 years ago
Does anyone know how to do these?
ale4655 [162]

Answer:

D.

Step-by-step explanation:

f(x) = \sqrt[3]{4x}

g(x) = 2x + 3

\frac{f}{g} (x)  = 'f' divided by 'g'

\frac{\sqrt[3]{4x} }{2x+3}    Substitute.

x cannot be -\frac{3}{2} because that would create a zero in the denominator.

That's a no-no.

It makes it 'undefined'

7 0
3 years ago
Problem: The mean number of bankruptcies filed per minute in the ` States in a recent year was about two. Find the probability t
tino4ka555 [31]
The number of companies is quite large. That is, n is quite large.
The probability that a company declares bankruptcy is quite small , p is quite small.
np = the mean number of bankruptcies = 2  = a finite number.
Hence we can apply Poisson distribution for the data.
P (x=5 | mean =2) = e-2 25/5! = e-2 * 32/120 = 0.036089
Alternatively 
=poisson(5,2,0) = 0.036089
P(x≥ 5 | mean =2) = 1- P( x ≤ 4) = 1- e-2 (1+2+22/2!+23/3!+24/4!)= 1-e-2 (1+2+2+8/6+16/24)= 1-e-2(7)
  =0.052653
Alternatively
= 1- poisson(4,2,1) =0.052653
P(X > 5 | mean =2) = 1- p(x
 ≤ 5) =1- e-2 (1+2+22/2!+23/3!+24/4!+25/5!)= 1-e-2(7+4/15)
  =0.016564
alternatively=1-poisson(5,2,1)
=0.016564
4 0
3 years ago
(99 POINTS, ANSWER PROPERLY) What is 5 - 7, plus 2, minus 6, divided by 2, plus 24, to the power of 3, multiplied by 7000, minus
Blababa [14]
<h3>Answer:</h3>

96,767,921

<h3>Step-by-step explanation:</h3>

5 - 7 + 2 - 6 ÷ 2 + 24^3 * 7000 - 76 = 96,767,921

Exponentiation is performed first, followed by multiplication and division in their order of appearance.

= 5 - 7 + 2 - 6 ÷ 2 + 13,824 · 7000 -76

= 5 - 7 + 2 - 3 + 96,768,000 -76

Then addition and subtraction are peformed in the order of appearance. (The commutative and associative laws apply.)

= (5 -7 +2) +96,768,000 -3 -76

= 96,767,921

_____

A Google or Bing search box will evaluate an arithmetic expression strictly according to the order of operations. Your result is attached. The preferred symbols are * (asterisk) for "times" and / (slash) for "divided by". The usual ^ (caret) is used for "to the power of." If you intend grouping, parentheses are required.

6 0
3 years ago
Read 2 more answers
10 pts to answer this!
Brut [27]

Answer:

Yes, the previous answer was right, 209.40625

Step-by-step explanation:

5 0
3 years ago
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