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Ghella [55]
3 years ago
11

Simplify (3^3)(1/9^2 − 6 + 2)

Mathematics
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

27/77

Step-by-step explanation:

I hope this is correct

Have a good Day!

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28xw+7wy-4kx-ky<br><br> Factor the polynomial completely<br><br> Thank you!
Genrish500 [490]

Answer:

(7w - k)(4x + y)

Step-by-step explanation:

Factor by grouping is best for this expression. To factor by grouping, group pairs of terms with parenthesis. Then find the GCF in each pair. If the parenthesis match after, the factoring is complete.

28xw + 7wy - 4kx - ky

(28xw + 7wy) + (- 4kx - ky)

7w(4x + y) - k (4x + y)

The factors are (7w - k)(4x + y).

3 0
2 years ago
A therapist wanted to determine if yoga or meditation is better for relieving stress. The therapist recruited 100 of her high-st
schepotkina [342]

Answer:  Choice B

There is not convincing evidence because the interval contains 0.

========================================================

Explanation:

The confidence interval is (-0.29, 0.09)

This is the same as writing -0.29 < p1-p1 < 0.09

The thing we're trying to estimate (p1-p2) is between -0.29 and 0.09

Because 0 is in this interval, it is possible that p1-p1 = 0 which leads to p1 = p2.

Therefore, it is possible that the population proportions are the same.

The question asks " is there convincing evidence of a difference in the true proportions", so the answer to this is "no, there isn't convincing evidence". We would need both endpoints of the confidence interval to either be positive together, or be negative together, for us to have convincing evidence that the population proportions are different.

5 0
3 years ago
What does Evaluate each expression mean?
Sedbober [7]
The answer is to solve each expression.
3 0
3 years ago
Read 2 more answers
A boat traveled 27 miles in 2 hours. At this rate, how many miles will the boat travel in 8 hours
natali 33 [55]

Answer:

216 miles

Step-by-step explanation:

multiply 27 by 2

6 0
3 years ago
On a map, the endpoints of a straight fence are located at A(4,12) and B(8,22). Lisa plans to install a gate in the fence and wa
Ahat [919]

Answer:

(6,17)

Step-by-step explanation:

we know that

In this problem

The gate hinges must be placed at the mid-point of the fence.

The formula to calculate the midpoint between two points is

M(\frac{x1+x2}{2},\frac{y1+y2}{2})

we have

A(4,12),B(8,22)

substitute the values in the formula

M(\frac{4+8}{2},\frac{12+22}{2})

M(6,17)

3 0
3 years ago
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