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3 years ago

Write nine and thirty-six hundredths with a decimal point

Mathematics

1 answer:

Akimi4 [234]3 years ago

6 0

The answer to this question is 9.36

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Doris made a list of all the whole number from 1 to 100 how many times did she write the digit 2

STALIN [3.7K]

She wrote it 22 times

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4 years ago

Three boys, Adam, Kyle, and Ty, and two girls, Anne and Kate, have volunteered to help plan the school dance. One student will b

Karo-lina-s [1.5K]

Answer:

2:4

Step-by-step explanation: Subtract 1 from total amount then find the number of girls I think sorry

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2 years ago

30 POINTS! Consider the system of linear equations and the matrix equations below.

fiasKO [112]

Answer:

Option C is correct.

Step-by-step explanation:

-x+3y=2

4x-2y=22

In matrix form is represented as:

$\left[\begin{array}{cc}-1&3\\4&-2\end{array}\right] \left[\begin{array}{c}x&y\end{array}\right] =\left[\begin{array}{c}2&22\end{array}\right]$

AX=B

$X = A^{-1}B$

$A^{-1} = |A|/Adj A$

|A| = (-1)(-2)-(3)(4)

|A| = 2-12

|A| = -10

Adj A = $\left[\begin{array}{cc}-2&-3\\-4&-1\end{array}\right]$

A^-1 = -1/10 $\left[\begin{array}{cc}-2&-3\\-4&-1\end{array}\right]$

A^-1 = 1/10 $\left[\begin{array}{cc}2&3\\4&1\end{array}\right]$

X= A^-1 B

X = 1/10 $\left[\begin{array}{cc}2&3\\4&1\end{array}\right]$ $\left[\begin{array}{c}2&22\end{array}\right]$

X=1/10 $X=1/10\left[\begin{array}{c}2*2+3*22\\4*2+1*22\end{array}\right]\\X=1/10\left[\begin{array}{c}4+66\\8+22\end{array}\right]\\X=1/10\left[\begin{array}{c}70\\30\end{array}\right]\\X=\left[\begin{array}{c}70/10\\30/10\end{array}\right]\\X=\left[\begin{array}{c}7\\3\end{array}\right]$

So, x = 7 and y =3

Hence Option C is correct.

4 0

3 years ago

Read 2 more answers

What does 6 more than twice mean?

ivann1987 [24]

Answer:

2x+6

Step-by-step explanation:

you want to get 6 more than twice of a number, in this case, x. Hope this helps!

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3 years ago

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Both windows are congruent. What is the combined area of the two windows?

Gnom [1K]

The area of the triangle is 3 because b•h/2, and the area of the rectangle is 3 because l•w, added together that equals 6, and doubled that equals 12. So I think the answer is C, 12 square feet.

7 0

3 years ago

Read 2 more answers