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ANTONII [103]
3 years ago
12

Please someone I need the right answer will give brainiest if right​

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

C. Because (-3)^2 is NOT equal to -9

Step-by-step explanation:

zvonat [6]3 years ago
8 0

Answer:

C

Step-by-step explanation:

√-9 is   3i.

Since there is a negative in the root, you can't have a regular number as the answer.

It askes why -3 is not the answer. Because -3 squared is 9, not -9.  

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What is surface area?​
schepotkina [342]
The surface area is the area of the outside of a 3D shape for example, let’s say you have a cube, a cube has 6 sides, so you have to find the area of each side and then add it up, since it’s a cube you would technically have to find the area of one side and then just multiply it by 6, that would be the easiest way to do it


Hope I helped!
8 0
3 years ago
A line has a slope of 1/2 and run =50. What is the rise
Svetllana [295]

Since 1/2 is one half, the rise must be half of the run, meaning that the rise would be 25.


3 0
3 years ago
Read 2 more answers
What is the answer to 2/3 of something equals 10
denis23 [38]
In math, when you see the word "of" it usually means "times".

So the question is:

        <u>2/3 times something = 10</u>

Multiply each side of the equation by 3 :

             2 times something = 30

Divide each side by 2 :

                        <em>  something = 15</em>
7 0
3 years ago
Read 2 more answers
H(x)=x-4 what’s is the domain of h?
Kazeer [188]

Answer:

all real number

Step-by-step explanation:

since h(x) is polynomial function

5 0
3 years ago
Justine ran for 35 minutes on monday, for 1 hour and 10 minutes on Wednesday , and for 1 hour and 15 minutes on friday. How many
Oduvanchick [21]

Answer:

3 hours or 180 minutes

Step-by-step explanation:

This one should be an easy one

First, lets convert everything to units

35 + (1 hour and 10 minutes or 70 minutes) + (1 hour and 15 minutes or 75 minutes) = 35 + 70 + 75 = 180 minutes, or 3 hours.

Hope it helps :)

7 0
2 years ago
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