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3 years ago

What is completely factored form of x^4+8x^2-9

Mathematics

2 answers:

BabaBlast [244]3 years ago

5 0

Answer: B would be the correct answer on edg. (X+1)(x-1)(x^2+9)

olganol [36]3 years ago

4 0

X^4 + 8x^2 - 9
= (x^2 + 9)(x^2 - 1)
= (x^2 + 9)(x + 1)(x - 1) Answer

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Kyle asked a random group of students what their favorite sport was. The results are below. Boys Girls Basketball 10 8 Football

Ronch [10]

Answer:

The probability that Kyle will pick a girl who likes football is 12.5%.

Step-by-step explanation:

The data provided is as follows:

Boys Girls Total

Basketball 10 8 18

Football 25 7 32

Soccer 9 19 28

Baseball 18 22 40

Total 62 56 118

Compute the probability that Kyle will pick a girl who likes football as follows:

$P(F|G)=\frac{n(G\cap F)}{n(G)}$

$=\frac{7}{56}\\\\=0.125\\\\=12.5\%$

Thus, the probability that Kyle will pick a girl who likes football is 12.5%.

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3 years ago

I really need help with this???

Vadim26 [7]

Answer:

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3 years ago

Subtract 3x + 2 from 8x + 9.

kirill115 [55]

Answer:

5x+7

Step-by-step explanation:

Subtract like terms

(8x+9)-(3x+2)

8x-3x=5x

9-2=7

5x+7 should be your answer I believe

3 0

3 years ago

What’s the answer to number 4 ?

Marizza181 [45]

Answer:

$4.36*10^-^1$

Step-by-step explanation:

Given:

$(3.6*10^-^2)+(4.0*10^-^1)$

Make the power of '10' equal by shifting the decimal place of any one value.

$(0.36*10^-^1)+(4.0*10^-^1)$

Taking the ' $10^-^1$ ' common

$10^-^1*(0.36+4.0)$

Adding the values in the bracket gives:

$4.36*10^-^1$

7 0

3 years ago

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What fraction of an hour is 18 minutes?<br> Give your answer in its simplest form.

enot [183]

Answer:

3/10

Step-by-step explanation:

An hour is 60 mins

so the fraction would be 18/60

Then you can divide both numbers by 6 to 3/10

4 0

3 years ago

Read 2 more answers