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katrin2010 [14]
3 years ago
5

Helppppppppppppppppppppppppppp me plz

Mathematics
1 answer:
Anit [1.1K]3 years ago
6 0
Yes they are equivalent expressions. If you take the z to the power of two, and subtract that from the other z to the power of two, it is zero. So you are left with four which is the answer
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List the factors of 4
il63 [147K]

Answer: 1,2,4,

Step-by-step explanation:

Because....

4 goes into all of these number therefor, these are your factors.

2 × 2 =4

1 × 4 = 4  

* Hopefully this helps:) Mark me the brainliset:) if this is helpful.

8 0
3 years ago
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Marc has 45 CDs in his collection, and Corinna has 61. If Marc buys 4 new CDs each month and Corinna buys 2 new CDs each month,
FinnZ [79.3K]

Answer:

8 months

Step-by-step explanation:

x=# of months

45+4x=2x+61

45+2x=61

2x=16

x=8

3 0
3 years ago
Given that the triangles are similar, find the value of x. Find the length of NR.<br> S<br> T<br> 40<br> 60<br> R<br> 2x-2<br> 8
andrew-mc [135]

Answer:

NR = 12

Step-by-step explanation:

Given that both trjangles are similar, therefore, it follows that their corresponding side lengths would be proportional to each other. Thus:

\frac{40}{8} = \frac{60}{2x - 2}

5 = \frac{60}{2x - 2}

Cross multiply

5(2x - 2) = 60

10x - 10 = 60

10x = 60 + 10 (addition property of equality)

10x = 70

Divide both sides by 10

x = 7

✔️NR = 2x - 2

Plug in the value of x

NR = 2(7) - 2 = 14 - 2

NR = 12

6 0
3 years ago
The temperature in an oven changes from 350 degrees to 362% What is the percent increase in temperature, to the nearest tenth of
Darya [45]

Answer:

3.43%

Step-by-step explanation:

362-350=12

12:350*100 =

(12*100):350 =

1200:350 = 3.43

3 0
3 years ago
Determine if the lines are parallel, perpendicular, or neither. x - y = 4 and x + y = 9
GenaCL600 [577]

Answer:

Bjgxhjhfy bună bună bună bună bună bună bună bună ziua domnule profesor de matematica și nu

7 0
3 years ago
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