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schepotkina [342]
3 years ago
15

I need help!Question 1 and 2 have the same questions so HELP!!

Mathematics
2 answers:
ANEK [815]3 years ago
3 0

Answer:

21.99 or just round to 22

Step-by-step explanation:

Radius is 3.5

Diameter is 7

Circumference is 21.99

algol133 years ago
3 0

Answer:

1st Circle

Radius = 3.5

Diameter = 7

Circumference = 2 × \pi × r = 2 × 3.14 × 3.5 = 21.98

2nd Circle

Radius = 9

Diameter = 18

Circumference = 2 × \pi × r = 2 × 3.14 × 9 = 56.52

:DDDDDDDDD

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The solution is (5,8). what does this mean in context of the problem?
Natasha_Volkova [10]
It means that you have to find the solution of the systems of equations.
7 0
4 years ago
Which angle pairs are supplementary? Check all that<br> apply.
Basile [38]

Answer:

The correct answers are B, C, and E.

B. < 4 and < 3

C. < 4 and < 5

E. < 3 and < 6

Step-by-step explanation:

The pairs in options B, C, and E add up to 180°, which is the definition of a supplementary angle.

Hope this helps!

8 0
3 years ago
If a and b are positive integers and 22a(22b)=16, what is the value of a+b?
Kryger [21]
Given that:
<span>22a(22b)=16
484ab=16
thus
ab=16/484
ab=4/121
thus given that 
ab=4/121
then
a=4 and b=1/121
hence
4+1/121
=4 1/121</span>
8 0
3 years ago
Find the following product if possible. Explain if it is not possible. <br><br> (See picture)
Nataly_w [17]

Answer:

The answer to your question is the letter a

Step-by-step explanation:

 |    1    4    -1   |      |  2    -1   |

 |    3   2    2   |      |  0     3  |         Product  = 2 x 3   and 3 x 2  = 2 x 2

                              | 5     2  |          It is possible to do this product,

                                                      the result will be a 2 x 2 matrix

Process

1.- Multiply first row by first column and second row by second column.

2.- Multiply the second row by the first column and second row by the second column.

  = (1 x 2) + (4 x 0) + (-1 x 5) = 2 + 0 - 5 = -3

  = (1 x -1) + (4 x 3) + (-1 x 2) = -1 + 12 - 2 = 9

  = (3 x 2) + (2 x 0) + (2 x 5) = 6 + 0 + 10 = 16

  = (3 x -1) + (2 x 3) + (2 x 2) = -3 + 6 + 4 = 7

Result

             |  3   9  |

             | 16   7  |    

4 0
4 years ago
57% of a number is 216.6.<br> What is the original number?
pickupchik [31]

Answer:

340.062

Step-by-step explanation:

3 0
3 years ago
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