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blondinia [14]
3 years ago
11

If the circumference of a circle is 47.7, what is the area of the circle

Mathematics
1 answer:
siniylev [52]3 years ago
8 0

The answer is A≈181.06

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Select the correct answer.<br> A and АВ:<br><br> Which matrix is matrix B?
Kruka [31]

Answer:

Option B

Step-by-step explanation:

Looking at the options, option B is correct because when multiplying it by matrix A, it yields the matrix AB as follows;

First row of A multiplied by first column of matrix in option D;

(1 × -1) + (0 × 0) + (0 × 0) = -1 which corresponds to the first number on the first row of Matrix AB

Since majority of matrix AB are zero, I will just prove the ones that are not zero.

Thus;

Second row of matrix A is multiplied by second column of matrix in option D;

(0 × 0) + (-1 × -1) + (0 × 0) = 1 which is same as 2nd number on second row in matrix AB

Lastly, third row of matrix A is multiplied by third column of matrix in option D;

(0 × 0) + (0 × 0) + (1 × -1) = -1 which is same as third number in third row in matrix AB

5 0
3 years ago
A. Steven wrote an expression with 2 terms. The second term, which is the whole number 7, is subtracted from the first term. The
bulgar [2K]

Answer:

Part a)

Steve's expression is 2(2x+5)^{2}-7

For x=3, the expression is equal to 235

Part b)

Jasmine's expression is

(3x^{2})+(25x)

For x=2, the expression is equal to 62

Step-by-step explanation:

Part a)

Let

n-----> the first term

The expression is

(n-7)

n=2(2x+5)^{2}

substitute

Steve's expression is

2(2x+5)^{2}-7

Evaluate for x=3

2(2(3)+5)^{2}-7=242-7=235

Part b)

Let

n-----> the first term

Jasmine's expression is

(3x^{2})+(25x)

Evaluate for x=2

(3(2)^{2})+(25(2))=12+50=62

4 0
3 years ago
HELP PLEASE!!!!!!!!!!!!!!! ASAP
evablogger [386]

AnswerASK THE TEACHER

Step-by-step explanation:

8 0
3 years ago
What fraction of an hour is 18 minutes.
Nuetrik [128]
60 mins in an hour
18/60 is the fraction
3/10 is the simplest form (dividing by 6)
5 0
3 years ago
explain why the exponents cannot be addded in the proududct 12 to the third power 11 to the third power
Oksi-84 [34.3K]
12 ^3  and 11^3   haven't got the same base  so the rules of exponents do not apply.

Bases have to be the same:-  for example 12^3 * 12*3  = 12 ^(3+3)  = 12^6
5 0
3 years ago
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