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son4ous [18]
3 years ago
14

What is 7 to the power of 3 in expanded form?

Mathematics
1 answer:
Blababa [14]3 years ago
6 0

Answer/Step-by-step explanation:

7^3 or 7 cubed = 7 x 7 x 7

Expanded form turns a simplified problem back into an equation.

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Ahhh okay help me pls!
inna [77]

Answer:

The answer is Dilation of a scale factor of 4 followed by a reflection of the y axis.

Step-by-step explanation:

On the smaller triangle, the line EF has a length of 1 unit.

On the larger triangle, the line EF has a length of 4 units.

Therefore, the smaller triangle was dilated by 4, since 4x1 is 4.

The triangles was flipped over the y axis.

This means that it was reflected over the y axis.

4 0
3 years ago
The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?
ale4655 [162]

Answer:

The 8th number is -9

Step-by-step explanation:

With an average, the sum of the seven numbers divided by 7 is 15.

In order to add an 8th number, we set up

\frac{7*15+x}{8}=12\\105 + x = 96\\x = -9\\\\\frac{105-9}{8}=\frac{96}{8}=12

3 0
4 years ago
Sarafina is making monthly payments into an annuity. She wants to have $800 in fund to buy a new convection range in three month
victus00 [196]

Answer:

  $265.07

Step-by-step explanation:

The formula for the future value of an annuity is applicable.

  A = P((1+r)^n-1)/r . . . . where r is the monthly interest rate and n is the number of months. P is the monthly payment, and A is the amount of the future value.

  800 = P(1.006^3 -1)/(.006) = 3.018036P

  P = 800/3.018036 ≈ 265.07

Sarafina's monthly payments need to be $265.07.

_____

This is about $1.60 less than the 266.67 she would deposit if she simply divided the desired balance by the number of months.

Because this number is rounded down, Sarafina will have a balance after 3 months of $799.99.

6 0
4 years ago
Which pairs are like terms in expression 2/5y + 1/5x - 0.2y - 6 + (-2)
Gelneren [198K]

<em><u>The pair of like terms are:</u></em>

\frac{2}{5}y \text{ and } -0.2y

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

\frac{2}{5}y + \frac{1}{5}x -0.2y-6+(-2)

We have to find the pairs that are like terms in the given expression

Like terms means that, terms that have same varibale but different ( or same ) coefficients

Here in the given expression "x" and "y" are the two variables present

Arrange the like terms

\frac{2}{5}y-0.2y+\frac{1}{5}x-6+(-2)

So here the first two terms has same varibale "y" but different coefficients. So they form a pair of like terms

"x" is present only once . There is no other term with variable "x"

6 and -2 are constants

So the pair of like terms are: \frac{2}{5}y \text{ and } -0.2y

3 0
3 years ago
A certain forest covers an area of
Nookie1986 [14]
Happy to help :)
after 1 yr- 3905.25 km2
2 yrs- approx. 3719.75 km2
3 yrs- approx. 3543.06 km2
4 yrs- approx. 3374.77 km2
5 yrs- approx. 3214.47 km2

The full decimal for the 5 yr mark is 3214.46557 km2 (not sure if you needed it)

To solve you would convert 4.75% into .0475 as a decimal, then subtract that from 1 (which acts as 100%) and you get .9525, then just multiply that by 4100 and each number that results from that ;)
7 0
3 years ago
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