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kirza4 [7]
3 years ago
5

Plzzz help me with this math im so confused!!

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
7 0

Answer:

I have made it in above picture

kotykmax [81]3 years ago
3 0

Answer:

2 A.)

1) 3-4x+8x^2-6+2x-5x^2

2) 8x^2-5x^2-4x+2x+3-6

3) 3x^2-2x-3

B.) 3x-5-7x^2+2+6x^2+5x

Step-by-step explanation:

please mark brainiest

please give 5 stars

thank you

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Which expression means "6 more than the quotient of a number and 5"?
Sindrei [870]

Answer:

C

Step-by-step explanation:

"6 more than the quotient of a number and 5"

Answer: 6+(x·5)

5 0
2 years ago
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Write the equation of the line that has an x-intercept of -3 and passes through the point (-3, 7).
Marina86 [1]

Answer:

x=-3

Step-by-step explanation:

'x = -3', when graphed, passes through the point (-3,7) and (-3,0).

Since the line passes (-3,0), the x-intercept is -3.

(-3, 7) lies on the equation.

I have attached a picture of the graphed equation.

'x = -3' should be the correct answer.

3 0
3 years ago
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Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the st
kari74 [83]

The margin of error of the random selection is 0.20

The given parameters are:

n = 420 --- the sample size

\sigma = 1.6 --- the standard deviation

\bar x = 10 --- the mean

\alpha = 99\% --- the confidence level.

The margin of error (E) is calculated as follows:

E = z \times \sqrt{\frac{\sigma^2}{n}}

So, we have:

E = z \times \sqrt{\frac{1.6^2}{420}}

E = z \times \sqrt{\frac{2.56}{420}}

The z-value for 99% confidence level is 2.576.

Substitute 2.576 for z

E = 2.576 \times \sqrt{\frac{2.56}{420}}

E = 2.576 \times \sqrt{0.006095}

Take square roots

E = 2.576 \times 0.0781

Multiply

E = 0.2012

Approximate

E = 0.20

Hence, the margin of error is 0.20

Read more about margin of error at:

brainly.com/question/14396648

8 0
2 years ago
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Which graph represents –4 + 3i?
morpeh [17]

Step-by-step explanation:

you may need to show what the graphs look like.

4 0
3 years ago
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5/3t−2/3(t+4)=1 What is the value of t? Enter the answer in the box.
allochka39001 [22]
T= 11 over 13 aka 11/13
4 0
3 years ago
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