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Mumz [18]
3 years ago
11

NEED HELLLLLLLLPPPPPPP

Mathematics
2 answers:
irinina [24]3 years ago
5 0
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
vladimir2022 [97]3 years ago
5 0

Answer:

\left[\begin{array}{cc}-230&380\\-170&60\end{array}\right]

Step-by-step explanation:

Notice that you are being asked to perform the product of a scalar (the number "-10" times a 2 by 2 matrix.

Such type of product requires the multiplication of each element of the matrix by the scalar "-10"

That means that the element 23 gets transformed into "-230"

The element -38 gets transformed into "380"

The element 17 gets transformed into "-170"

and lastly, the element -6 gets transformed into "60"

\left[\begin{array}{cc}1-230&380\\-170&60\\end{array}\right]\left[\begin{array}{cc}-230&380\\-170&60\end{array}\right]

Such modification gets reflected in the second matrix listed among the possible answers.

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Which value of x makes the equation 0.5(x + 15) = 2 + 0.75(x - 4) true?
SIZIF [17.4K]

Answer:

Step-by-step explanation:

\frac{1}{2}(x+15) = 2 + \frac{3}{4}(x-4)

To make this easier, to get ride of the fractions, we can multiply both sides by 4

2(x+15) = 8 + 3(x-4)

now use the distributive property

2x + 30 = 8 + 3x - 12\\

now we want to isolate x to one side and isolate all the constants to the other

2x - 3x = 8 - 12 - 30\\

now simplify

-x = -34\\x = 34

to test, we can plug in back to the original

\frac{1}{2}(34+15) = \frac{49}{2}\\\frac{8}{4} + \frac{3}{4}(34-4) = \frac{8}{4} + \frac{90}{4} = \frac{98}{4} = \frac{49}{2}

it works

7 0
3 years ago
To solve the system of equations below, chen isolated x2 in the first equation and then substituted it into the second equation.
Ann [662]
Im pretty sure it should be 

25-y^2/16 -y^2/9=1
8 0
3 years ago
Read 2 more answers
What is the recursive formula for the sequence? -14, -8, -2, 4, 10,...
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3 years ago
A baker made 9 cupcakes 4 people want to share them equally how many will each person get
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8 0
3 years ago
URGENT! WILL GIVE BRAINLIEST!!! IF CORRECT!
In-s [12.5K]
Answer: $6.75

Step-by-step process:
100%-25%=75%
therefore, they will cost 75% of the original price
75% of $9.00 = .75*9
= $6.75
5 0
3 years ago
Read 2 more answers
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