4 years ago

Solve x-y=5 and -3x+2y=-7

Mathematics

1 answer:

Karolina [17]4 years ago

3 0

This is the answer x=-17 aND y=-22

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An artist has completed 1 4 of a painting in 2 weeks. At what rate is she working? Simplify your answer and write it as a proper

Alika [10]

Answer:

1/8 because 1/4 x 1/2 = 1/8

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2 years ago

Apple orchard sells Apple's in bags of 10. The orchard sold a total of 2,430 apples one day. How many bags of Apple's was this

zlopas [31]

divide them:

2430/10 = 243 bags

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3 years ago

The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17]. Find C^-1 and use it to decode the

posledela

$C= \left[\begin{array}{cc}1&-2\\-3&7\end{array}\right] \\ C^{-1}= \left[\begin{array}{cc}7&2\\3&1\end{array}\right] \\ \left[\begin{array}{cc}7&2\\3&1\end{array}\right] \times \left[\begin{array}{ccccc}7&-28&-25&-35&-2\\-21&107&90&123&17\end{array}\right] \\ =\left[\begin{array}{ccccc}49-42&-196+214&-175+180&-245+246&-14+34\\21-21&-84+107&-75+90&-105+123&-6+17\end{array}\right] \\ =\left[\begin{array}{ccccc}7&18&5&1&20\\0&23&15&18&11\end{array}\right]$
is the required matrix.

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3 years ago

PMI stands for (blank).

choli [55]

Answer:

Private mortgage insurance, also called PMI, is a type of mortgage insurance you might be required to pay for if you have a conventional loan. i hope this helped <3

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the factored form of x2x-2?

Sergeeva-Olga [200]

Answer:

2(x-1)(x+1)

Step-by-step explanation:

x2x-2

=2(x^2-1)

=2(x-1)(x+1)

6 0

4 years ago