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erastovalidia [21]
3 years ago
10

Write the number that can be shown with this Many hundreds, tens,and ones 1 hundreds 2 tens 18 ones

Mathematics
1 answer:
dem82 [27]3 years ago
8 0

Answer: 139


Step-by-step explanation:

100+20=120+18=139

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The length of a rectangle is 8 feet more than it’s worth. The area of the rectangle is 84 ft.². Find its Length and width.
Furkat [3]

Answer: 100 i think, but am not sure.

Step-by-step explanation:

The formula for area of a rectangle is A=l*w.  Since the area is 84, then you can use the A=l*w formula.  84 = x(x+8) would be the equation to solve for x.

Now, you need to put the equation in standard form.  So, x2 + 8x - 84 = 0.

Since you can't solve this quadratic using factoring, you need to complete the square.

To complete the square you need to add 84 to both sides.  Now you have x2 + 8x = 84.  Take the coefficient for the x term (8) and divide by 2.  Now square it.  That would be 42, so 16.  Now you have x2 +8x +16 = 100.

Factor x2 +8x +16, so (x+4)2 = 100

If you use the square root property, you have x+4 = 10.  Therefore, x = 6 (the short side) and 14 is the long side.

5 0
3 years ago
What would the total bill be of a painting that costs $42.80 with a tax rate of 8%. Please explain how you got the answer.
Pachacha [2.7K]
The answer is $46.22, you do $42.80 plus 8% on a calculator

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2 years ago
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If A = James's present age, write an expression for his age seven years from now *
Keith_Richards [23]

Answer:

A +7= F

Step-by-step explanation:

A is his current age, and he gains, or adds seven years he will be F or his future age.

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Answer:

All of them are rational except for 0.0100100010001, root50, and pi

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Hope this helps plz hit the crown :D

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