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Tomtit [17]
3 years ago
7

Select the correct answer.

Mathematics
1 answer:
svetlana [45]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Prime factorize 60

\sqrt{60}=\sqrt{2*2*3*5}=2\sqrt{3*5}=2\sqrt{15}

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Can someone please help me?
Katyanochek1 [597]
The matrix represents the system:

-3x+5y=15

2x+3y=-10, which is choice c. 


We can see it more clearly from the way we multiply matrices, as follows:

\[
  \left[ {\begin{array}{cc}
   -3 & 5 \\
    \ 2  & 3 \\
  \end{array} } \right]
\] \cdot  \[
  \left[ {\begin{array}{c}
   x \\
    y \\
  \end{array} } \right]
\]= \left[ {\begin{array}{c}
   -3\cdot x+5\cdot y \\
    2\cdot x+3\cdot y \\
  \end{array} } \right]
\]= \[ \left[ {\begin{array}{c} 15 \\ -10 \\ \end{array} } \right] \]

Answer: C
7 0
3 years ago
Find the product.
Inga [223]
(2p + 7)(3p-9)
2p x 3p= 6p^2
2p x -9= -18p
7 x 3p=21p
7 x -9=-63
6p^2 - 18p + 21p - 63
6p^2 + 3p -63 is the answer.

6 0
3 years ago
Read 2 more answers
A school supply store owner sold 9 book bags and earned $270.00
mamaluj [8]
The answer to this is D, $990.00
4 0
3 years ago
A scientist had 3/4 of a bottle of a solution. She used 1/6 of the solution in a experiment. How much of the bottle didi she use
Rashid [163]

Answer:

1/8

Step-by-step explanation:

1/6 × 3/4

Multiply across top, then bottom

1×3=3

6×4=24

Then reduce if necessary.

3/24

Divide top and bottom by 3

3÷3=1

24÷3=8

You should get 1/8

5 0
3 years ago
Which equation gives the lines show on Graph y= 2x+4 <br> y= -1/2x-4<br> y=1/2x+4 <br> y=2x-4
Xelga [282]
The answer is the second one y=1/2x+4
5 0
2 years ago
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