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3 years ago

I’m having trouble with these problems #2 and #3

Mathematics

2 answers:

Charra [1.4K]3 years ago

7 0

Answer:

Im not 100% sure but the answer is 25x^6+40x^3+16

Step-by-step explanation:

(5^3+4)^2

(5x^{3}+4)^{2}

(5x3+4)2

(5^3+4)(5^3+4)

5(5x^3+4) *x^3+4(5x^3+4)

5(53+4)⋅3+4(53+4)+4(5x^{3}+4)

5(5x3+4)⋅x3+4(5x3+4)256+203+4(53+4)

Overall the answer is 25x^6+40x^3+16

Tems11 [23]3 years ago

3 0

2) 25x^6+40x^3+16
3)8x^3–14x^2–27x—9

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What is the value of <br> 3 1/4 - 1 7/8 =

wlad13 [49]

Answer:

The answer is 11/8 or 1 3/8

Step-by-step explanation:

First, you can break both fractions down into 3+1/4-1+7/8.

Second, use 3 subtract 1, you will get 2+1/4-7/8.

To subtract 7/8 you have to make both numbers denominator same.

1/4 will multiply by 2 on the top and the bottom.

After that, you will get 2 2/8-7/8.

2x8=16, 16+2=18

18/8-7/8=11/8 or 1 3/8

I know its gonna be confusing, but this is all I can do, sorry about that. :)

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4 years ago

Evaluate using tables square root of 0.792

AnnZ [28]

Answer:

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Explanation

First change 0.792 into standard form

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4 years ago

The stem plot shows the number of sit-ups completed by a group of gym members in one minute. Row1 with a 1 to the left of the ba

allochka39001 [22]

Answer:

Only statement second is correct about the distribution.

Step-by-step explanation:

The stem plot data given to us is;

1 | 9

2 | 5

3 | 4 6 8 8

4 | 0 3 6 7 7

5 | 0 0 1 2

As it is given in the question that 1 | 9 = 19 sit-ups, so the data value are;

19, 25, 34, 36, 38, 38, 40, 43, 46, 47, 47, 50, 50, 51, 52

(a) The first statement that there is one outlier in the distribution is false as there are two outliers in the data (19 and 25) as they are very far from the rest of the data.

(b) The statement that the distribution is skewed left is correct because the tail of the distribution is towards the left.

(c) The statement that the center is around 47 is false as the center or mean of the data is 43 because the middle most data value is 43.

(d) The statement that the distribution is bimodal is false as there are is three modes in the data (38, 47 and 50), so the given distribution is trimodal.

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3 years ago

Use the figure to find the length HJ. Assume △DEF ≅ △GHJ.<br> *I GOT 30*

solniwko [45]

Yes, HJ = 30 ft.

It tells us that triangle DEF = triangle GHJ.

By seeing this we know without looking at the triangles that EF is going to be the same as HJ because when they say a figure is the same as another and list the letters such as 'DEF' and 'GHJ' they will list them in the same order.

So

'DEF' = 'GHJ' we get:

'DE' = 'GH'

'EF' = 'HJ'

And we can do the last and first letters:

'FD' = 'JG'

And since we know 'EF' = 'HJ' and that they already told us 'EF' was 30, we know HJ will be 30.

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3 years ago

Best buy is having a sale of 25% off all their computers. The original price on the computer was $1500 but there is a 8% shippin

skelet666 [1.2K]

Answer:

By 19% the computer was less than the original price

Step-by-step explanation:

The original price on the computer was $1500

Discount is 25%= 0.25

Discount amount = 1500 * 0.25 = 375

Discounted price = 1500 - 375 = 1125

Now 8% shipping cost to discounted price

8% = 0.08

Shipping cost = 1125 * 0.08 = 90

cost of computer with shipping cost = 1125 + 90 = 1215

Percentage less = (original cost - cost of computer now ) / original cost

= $\frac{1500- 1215}{1500}=0.19$

To get percentage we multiply by 100

0.19 * 100 = 19%

8 0

3 years ago