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valentina_108 [34]
3 years ago
9

For which nonnegative value of x is the expression 5+x/25-x^2

Mathematics
1 answer:
erica [24]3 years ago
8 0

Answer:

Step-by-step explanation:

\frac{5+x}{25-x^2} >0\\=\frac{5+x}{(5+x)(5-x)} \\=\frac{1}{5-x} >0\\if~5-x>0\\or~5>x\\or x

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In parallelogram WXYZ, what is CY?<br> 11 ft<br> 15 ft<br> 21 ft<br> 23 ft
erastovalidia [21]

Answer:

15 ft

Step-by-step explanation:

In a parallelogram the diagonals bisects each other

So WC= CY

x+4=2x-7 solve the equation for x

Subtract x from both sides

x-x+4=2x-x-7

4=x-7

Now we add 7 on both sides

4+7=x-7+7

x=11

Now we need to find CY

CY= 2x-7

Plug in 11 for x

CY= 2(11)-7=22-7= 15

6 0
3 years ago
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The price of a cd is $16 if the sales tax is 4% what will be the total price of the cd
djverab [1.8K]
Well u would turn 4 into a decimal. this is 0.04. then multiply it by 16. that answer will be added to the original price 16. this would be the answer.
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3 years ago
7. Slips are drawn form a box containing 100 slips written with numbers 1 to 100. If three slips are
Svetradugi [14.3K]

Answer:

D

Step-by-step explanation:

We need the numbers of each before we can calculate the probability

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7 0
3 years ago
When testing for current in a cable with eleven ​color-coded wires, the author used a meter to test four wires at a time. How ma
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Answer:

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Step-by-step explanation:

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C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

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So

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5 0
2 years ago
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wolverine [178]
15^2+x^2=17^2
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3 years ago
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