Unknown angle problems (with algebra)

What value of n makes the equation true?

dybincka [34]

1(2x^9y^n) (4x²y^10)-8x^11 y^20

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30

(2x^9y^n) (4x²y^10)-8x^11 y^20 i say the answer 1 or 10

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

10

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

10

30

(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

10

30

(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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10

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

10

30

(2x^9y^n) (4x²y^10)-8x^11 y^20

1

2

10

30

(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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(2x^9y^n) (4x²y^10)-8x^11 y^20

1

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30

(2x^9y^n) (4x²y^10)-8x^11 y^20

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30

(2x^9y^n) (4x²y^10)-8x^11 y^20

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10

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(2x^9y^n) (4x²y^10)-8x^11 y^20

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10

30

4 0

1 year ago

Solve 5x÷6=20.<br><br> The solution is x=

puteri [66]

We want to get x by itself
First we will multiply both sides by 6 to cancel out the 6 on the left
5x = 120
We then divide by 5 on both sides to get x by itself
x = 24

7 0

3 years ago

Read 2 more answers

using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?

mylen [45]

Correct Question:

Tim is investigating the relationship between the number of years since a tree was planted and the height of the tree in feet. His data are shown in the table. Years Since Tree was Planted vs. Height of Tree

Years since the tree was planted, x

Height of tree in feet, y

2, 17, 3, 25, 5, 42, 6, 47, 7, 54, 9, 69

Using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?

Answer/explanation:

There is no good prediction for the height of the tree when it is 100 years old. If you analyze careful in details the regression calculator you realize that it probably will not valid that far in to the future say 100 years.

6 0

3 years ago

the figure below are squares. Find an expression for the area of each shaded region. Write your answer in standard form.

zheka24 [161]

(X+3)^2 -(X)^2
(X^2+6x+9) - X^2
6x+9

6 0

3 years ago

I need help trying to figure this out I think I have and answer but I want to make sure.

yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

The mean is calculated as

mean = $\frac{frequency(midpoint)}{frequency}$

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

Total frequency = 16 + x + 20 + 10 = 46 + x, thus

$\frac{242+7x}{46+x}$ = 8.5 ( cross- multiply )

442 + 7x = 8.5(46 + x)

442 + 7x = 391 + 8.5x ( subtract 8.5x from both sides )

442 - 1.5x = 391 ( subtract 442 from both sides )

- 1.5x = - 51 ( divide both sides by - 1.5 )

x = 34

The missing frequency is 34

3 0

3 years ago