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Len [333]
3 years ago
8

I NEED HELP PLEASE, THANKS! :)

Mathematics
2 answers:
Debora [2.8K]3 years ago
6 0

Answer: It would be the second one.

Step-by-step explanation:

Inverse means opposite.

blsea [12.9K]3 years ago
5 0

Answer:

Option D

Step-by-step explanation:

This is an example of a two by two matrix. To determine if the inverse of R even exists, take the determinant of the matrix, as such -

( 0 * 3 ) - ( 0 * 4 ) = 0 * 0 = 0

As you can see, the determinant is 0, and if so, the inverse of R doesn't exist. Thus, R^- doesn't exist, as it is present as the inverse of R,

<u><em>Solution = Option D</em></u>

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Kelly went to a store to purchase a coffee pot. She will use a coupon for 20% off. She can calculate the cost before sales tax u
alexgriva [62]

Answer:b

Step-by-step explanation:

7 0
3 years ago
The length of a rectangle is 4 yd more than twice the width x. The area is 390
masya89 [10]

Step-by-step explanation:

step 1. let l be the length of the rectangle

step 2. l = 2x + 4

step 3. lx = 390 yd^2

step 4. (2x + 4)x = 390

step 5. 2x^2 +4x = 390

step 6. 2x^2 + 4x - 390 = 0

step 7. -4 +- sqr(4^2 -4(2)(-390))/2(2) quadratic formula

step 8. (-4 +- sqr(3136))/4

step 9. (-4 +- 56)/4

step 10. x = 13yd, l = 2x + 4 = 2(13) + 4 = 30yd.

3 0
2 years ago
The grocery store charges $6.85 for 5 bags of potatoes.if someone bought 7 bags of potatoes, how much would it cost them
Hoochie [10]

Answer:

$9.59 for 7 bags of potatoes

Step-by-step explanation:

First you find the unit rate by dividing 6.85 by 5.

The unit rate should equal $1.37.

Then you multiply that and 7 which equals $9.59

4 0
3 years ago
1 + 4 = 5<br> 2 + 5 = 12<br> 3 + 6 = 21<br> 5 + 8 = ?
Karolina [17]
45


Hope this helps!!!!
6 0
2 years ago
Read 2 more answers
20 POINTS NO CAP PLEASE HELP ME NEED RIGHT ANSWER
Keith_Richards [23]

Answer:

3x-10+25+x+15=180

4x+30=180

4x=180-30

4x=150

x=37.5

8 0
2 years ago
Read 2 more answers
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