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AnnZ [28]
3 years ago
9

Evaluate the power: (−3)^4 A. 81 B. -81 C. 243 D. -331

Mathematics
2 answers:
Effectus [21]3 years ago
8 0
The power would be= A.) 81
Agata [3.3K]3 years ago
7 0

Answer:

The answer is 81.

Step-by-step explanation:

Since the power of 4 is even, the result will be positive.

{3}^{4}

Simplify.

81

<u>hence</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>Option</u><u> </u><u>A</u><u>)</u><u> </u><u>81</u><u>.</u>

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Does anyone know this it sounds simple but there is usually something else to it so I’m not sure.
dedylja [7]

Answer:

its 7

Step-by-step explanation:

it is pretty simple just try not to over think it

8 0
3 years ago
Height is 2ft. More than its width. If the total area is 99ft squared , determine the dimensions of the painting.
lesantik [10]

Answer: 9\times 11\ ft^2

Step-by-step explanation:

Given

Height is 2\ ft more than its width

Suppose the width is x. So, height becomes x+2

Area of the painting is 99\ ft^2

Area is the product of width and height

\therefore 99=x(x+2)\\\Rightarrow 99=x^2+2x\\\Rightarrow x^2+2x-99=0\\\Rightarrow x^2+11x-9x-99=0\\\Rightarrow (x+11)(x-9)=0\\\Rightarrow x=-11,9

Neglect the negative values

\text{Width =}9\ ft\\\text{height =}9+2=11\ ft

4 0
3 years ago
Harper had fifteen animals in her field. In the field,3 sets of 3 cows grazed together, and 2 sets of 3 horses grazed together.
FromTheMoon [43]
You have it right. 9 cows to 6 horses equals 3 to 2. ur welcome
5 0
3 years ago
Use expressions for odd integers to confirm the conjecture that the product for two odd integers is an odd integer.
Mandarinka [93]

k, n - integers  

2k+1  - an odd integer

2n+1  - another odd integer

The product of them:

  (2k + 1)(2n + 1) =

= 4kn + 2k + 2n + 1 =

= 2(2kn + k + n) + 1

The product of integers (2kn) is integer

and the sum of them (2kn+k+n) also is integer

So  (2k + 1)(2n + 1)  = 2(2kn + k + n) + 1  is an odd integer

4 0
4 years ago
5(x+2)=6x+3x-14 please solve
zavuch27 [327]

Answer:

5(x+2)=6x+3x−14

Step 1: Simplify both sides of the equation.

5(x+2)=6x+3x−14

(5)(x)+(5)(2)=6x+3x+−14(Distribute)

5x+10=6x+3x+−14

5x+10=(6x+3x)+(−14)(Combine Like Terms)

5x+10=9x+−14

5x+10=9x−14

Step 2: Subtract 9x from both sides.

5x+10−9x=9x−14−9x

−4x+10=−14

Step 3: Subtract 10 from both sides.

−4x+10−10=−14−10

−4x=−24

Step 4: Divide both sides by -4.

−4x

−4

=

−24

−4

x=6

Answer:

x=6

7 0
3 years ago
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