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Semenov [28]
3 years ago
7

Which equation can be used to solve the matrix equation [1/2 -1/4 2 3/4] [x y] = [2 -4 1 6]​

Mathematics
2 answers:
Musya8 [376]3 years ago
7 0

Answer:

Use a matrix equation to solve the system of linear equations: -2x + 4y= 2, -3x+7y=7 *

Arisa [49]3 years ago
6 0

Answer:

<h2>D.(x y) = (-6,2,-16,4) (2,-4,1,6)</h2>

Step-by-step explanation:

<u>took the pretest</u>

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BRAINLIEST IF correct
ycow [4]

Answer:

1.

25 of the 36 collars will be accepted. I just counted the numbers that were either "14" "15" or "16" because the company will only accept the collars that have 14-16 miligrams of medicine in them.

2. I expect the company to reject 11 of them because 25-36 = 11

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
salesperson receives 16.7% commission. If her total sales for the month are $4900, what is her commission?
Natali [406]

Answer:

$818,3

Step-by-step explanation:

16.7% in decimal is 0.167

= 0.167 x $4900

= $818,3

6 0
3 years ago
How do you subtract 1 integer by another
nikdorinn [45]
Use absolute value. If both signs are negative you will get a negative number. if both are positive you get positive. if the signs are different, subtract the smaller absolute value from the larger absolute value.
8 0
3 years ago
Read 2 more answers
IF the area of the frame was 64inches², what would be 2 possible sets of dimensions that could be used to make a frame with that
alina1380 [7]
To resolve this exercise you have to choose two numbers that when you multiply them, you get 64:
 
 For Set 1: If you choose to make a square frame, you can calculate its dimensions by clearing the value of each sides of it from the formula of the area of a square:

 A= L²
 L= √A
 L= √64 inches²
 L= 8 inches
 
 So, you have a square frame of 8 inches x 8inches = 64 inches²

 Set 1: 8 inches x 8 inches

 For set 2, you can make a rectangular frame with the following dimensions: 16 inches x  4 inches = 64 inches²

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7 0
3 years ago
Imagine telling a friend about your favorite coffee and donut shop. Your friend asks how much it charges for a cup of coffee and
Mama L [17]

Answer:

c + 2d = $7.00

2c + 3d = $12.00

Step-by-step explanation:

Hello!

<u>Let:</u>

  • c = # of coffees
  • d = # of donuts

1 coffee and 2 donuts cost $7.00

This can be repesented by 1c + 2d = $7.00, or c + 2d = $7.00

2 coffees and 3 donuts cost $12.00

This can be represented by 2c + 3d = $12.00

<u>So, the system is :</u>

c + 2d = $7.00

2c + 3d = $12.00

8 0
3 years ago
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