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Dahasolnce [82]
3 years ago
13

20 POINTS! + BRAINLIEST!

Mathematics
2 answers:
lana66690 [7]3 years ago
4 0

Answer:

idk

Step-by-step explanation:

g100num [7]3 years ago
3 0

Answer:

= x^4 -x^3 -4x^2 -3

Step-by-step explanation:

f(x) = x^4 -x^2 +9

g(x) = x^3 +3x^2 +12

We want to find f-g

(f-g) (x) = x^4 -x^2 +9 - (x^3 +3x^2 +12)

Distribute the minus sign

(f-g) (x) = x^4 -x^2 +9 - x^3 -3x^2 -12

            = x^4 -x^3 -4x^2 -3

You might be interested in
Please help due in 5 minutes
miv72 [106K]

Answer:

x = 0

y= -3

Step-by-step explanation:

x = y + 3 into the equation y = -4x - 3, so

y = -4(y+3) - 3

y = -4y - 12 - 3

y = -4y - 15

5y = -15

y = -3

Then, you can substitute this into the equation x = y + 3

x = -3 + 3\\x = 0

6 0
3 years ago
the employees of a company were surveyed on questions regarding their educational background ( college degree) and marital statu
Llana [10]

Number employees N = 600

Then

Probability of Single + College degree = ?

Probability of single S = 100/600 = 1/6

Probability of College graduate G = 400/600 = 2/3

So then probability of both S and G is

Prob Single or Graduate = 1/6 + 2/3 = 1/6 + 4/6 = 5/6

. = 0.833

Then answer is

Probability of Single or Graduate = 5/6= 0.8333

Is also 83.33%

5 0
1 year ago
the left and right page numbers of an open book are two consecutive integers whose sum is 593. find these page numbers ​
kobusy [5.1K]

Answer:

296 and 297

Step-by-step explanation:

a+a+1=593

2a+1=593

2a=592

a=296

6 0
3 years ago
A manager records the repair cost for 4 randomly selected stereos. A sample mean of $82.64 and standard deviation of $14.32 are
zysi [14]

Answer:

CI = (70.861 , 94.418)

Step-by-step explanation:

In order to determine the 90% confidence interval you use the following formula (for a population approximately normal):

CI=(\overline{x}-Z_{\alpha/2}\frac{\sigma}{\sqrt{n}},\overline{x}+Z_{\alpha/2}\frac{\sigma}{\sqrt{n}})    (1)

\overline{x}: mean = 82.64

σ: standard deviation = 14.32

n: sample = 4

α: tail area = 1 - 0.9 = 0.1

Z_α/2 = Z_0.05: Z factor =  1.645

You replace these values and you obtain:

Z_{0.05}(\frac{14.32}{\sqrt{4}})=(1.645)(\frac{14.32}{\sqrt{4}})=11.778

The confidence interval will be:

CI=(82.64-11.778,82.64+11.778)=(70.861,94.418)

The 90% confidence interval is (70.861 , 94.418)

6 0
3 years ago
9(x) = 2x-1<br> r(x) = -2x<br> 2<br> 2<br> Find the value of r(q (2)).
BabaBlast [244]

Answer:

<em>Answer</em><em> </em><em>is</em><em> </em><em>-6</em>

Step-by-step explanation:

given \: q(x) = 2x - 1 \\ and \: r(x) =  - 2x \\ r(q(2)) = r(2(2) - 1) \\ \:  \:   = r(4 - 1) \\  = r(3) \\  =  - 2(3) \\  =  - 6 \\ therefore \: r(q(2)) =  - 6

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

6 0
3 years ago
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