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RideAnS [48]
3 years ago
6

What is -9 to the second power

Mathematics
2 answers:
OLEGan [10]3 years ago
4 0
-9 to the second power will most likely be 81. A negative x a negative equals a positive. Hope this helped.
Kamila [148]3 years ago
3 0

Answer:

-9^{2} = 81

Explanation:

Since you have to square -9 twice, you get 81 because -9*-9=81.

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Whats the density of an object with the length of 5.0 cm a height of 3.0 and width of 15.0 cm and a mass of 24 grams
Sphinxa [80]

Answer:

The density of the object is 0.1067 grams per cubic centimeter. (Rounded off to 4th decimal)

Step-by-step explanation:

Density = [Mass/Volume]

Here we have been given the dimensions of the object.

Volume = Height * Width * Length

Volume = 3.0cm*15.0cm*5.0cm

             =225cm^{3}

Now we can substitute the Mass and the Volume to the density equation.

Density = [Mass/Volume]

             =\frac{24grams}{225cm^{3} }

             =0.1067 grams per cubic centimeter. (Rounded off to 4th decimal)

4 0
3 years ago
Have no clue what to do
WITCHER [35]
It says that the value of a box above two boxes is found by adding the expressions in the two boxes.  I filled in the boxes.  The top box is 13x + 30, or option B.

3 0
3 years ago
Anybody know the answer for this? ;-;
olasank [31]

Answer: the first answer choice

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Define and name two pairs of corresponding angles
Inga [223]

Answer:

2 corresponding to 6

3 corresponding to 7

Step-by-step explanation:

Corresponding angles just make the letter F

4 0
2 years ago
Which of the following is not part of polyhedron.
Rom4ik [11]

Answer:

C

Step-by-step explanation:

Oblique. The other three are used to describe a polyhedron. They are related by the following formula

V + F - E = 2.

Where

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For example consider a common cube, like a sugar cube.

It has 6 faces (f)

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It has 12 edges. E

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8 0
3 years ago
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