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Black_prince [1.1K]
3 years ago
7

If A = (please see image) find the matrix 7A.

Mathematics
1 answer:
vovangra [49]3 years ago
6 0
The second row in the answer
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Find the slope and y-intercept of each equation. Y=-5x+8
Natali [406]

Answer:

Slope= -5

y-intercept=8

Step-by-step explanation:

In the formula y=mx+b

The m is the slope and the b is the y-intercept.

8 0
3 years ago
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A square is always a parallelogram.<br> True False
agasfer [191]

Answer:

yes,

Step-by-step explanation:

because of them being quadrilaterals

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3 years ago
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by 8:00 a.m., the snack bar had made $3,256 in sales. By noon, the snack bar's total sales were $8,821. On average how much mone
sammy [17]

Answer:

$1,391.25

Step-by-step explanation:

Noon would be 12:00 PM which would be 4 hours ahead of 8:00 AM

We subtract $8,821 by $3,256 to get the amount earned between 8:00 AM and 12:00 PM

$8,821 - $3,256

= $5,565

The find the average taken in within those 4 hours we will have to divide the money earned by the hours

$5,565/4

= $1,391.25

7 0
3 years ago
Solve: -7(3+6x)=9(-5x+7)
Ivan

Answer:

x=28

Step-by-step explanation:

-7(3+6x)=9(-5x+7)

-21-42x=-45x+63

-21-42x-(-45x)=63

-21-42x+45x=63

-21+3x=63

3x=63-(-21)

3x=63+21

3x=84

x=84/3

x=28

7 0
3 years ago
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What is the solution of the system?
Phoenix [80]

Answer:

(-2, 6)

Step-by-step explanation:

We can simply do this by plugging in all of the coordinates. (I did this in my head quickly, so I know what it is; I'm just going to plug in the correct answer.) The correct answer is (-2, 6), so we're just going to plug them into the simplest equation, which is probably y=-3x. So...

6=-3(-2)

6=6

This answer is correct. If you're unsure about the answer, you can always check in the other equation. So...

3(-2)+2(6)=6

-6+12=6

6=6

Hope this helps and have an amazing day ^^

5 0
3 years ago
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