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brilliants [131]
3 years ago
6

What is the radius of 34.54

Mathematics
2 answers:
Tema [17]3 years ago
7 0
The radius is <span>5.497211734394065

</span>
jonny [76]3 years ago
3 0
5.497211734394065 is the radius of 34.54
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Joe drove 530 miles in hours 15 minutes. What was his average speed pee hour?
scZoUnD [109]
530 divided by 15 is 35.3
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3 years ago
I need help with these pls
notsponge [240]
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The functions q and r are defined as follows.<br> HELP PLEASE
dusya [7]

Answer:

-22

Step-by-step explanation:

First do r(3) by replacing x with 3 in r:

2*3^2 + 2 = 2*9 + 2 = 18 + 2 = 20

Then replace r(3) with 20 to do q(20):

-20-2 = -22

7 0
3 years ago
Which of the following expressions can be factored by grouping? (Select all that apply.)
Greeley [361]

Answer:

Options (3), (4) and (5)

Step-by-step explanation:

1). a² - 9a + 7ab + 63b

  = a(a - 9) + 7b(a + 9)

  Now we can not solve this problem further.

  Therefore, can't be factored by grouping.

2). 3a + 4ab - b - 12

   = a(3 + 4b) - 1(b - 12)

   We can't solve it further.

   Therefore, can't be factored by grouping.

3). ab + 6b - 2a - 12

   = b(a + 6) - 2(a + 6)

   = (b - 2)(a + 6)

  We can be factored this expression by grouping.

4). x³ + 9x²+ 7x + 63

   = x²(x + 9) + 7(x + 9)

   = (x² + 7)(x + 9)

   Therefore, the given expression can be factored by grouping.

5). ay² + a - y² - 1

  = a(y² + 1) - 1(y² + 1)

  = (a - 1)(y² + 1)

  This expression can be factored by the grouping method.

Options (3), (4) and (5) are the correct answers.

3 0
3 years ago
Simplify this expression, and leave your answer in scientific notation: 4 x 10^6/2 x 10^8
Anna007 [38]

Answer:

7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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