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3 years ago

-2y-12 How do I show my work?????

Mathematics

1 answer:

grin007 [14]3 years ago

4 0

Factor - 2y - 12

- 2y - 12

= - 2( y + 6)

answer is - 2( y + 6)

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The area of a square is given by the expression s•s square inches, where s is the length of a side in inches. Write the expressi

grandymaker [24]

This can also be written as A = s^2 and the area would be 49 with a side length of 7.

In order to find this, you can stick 7 into the area equation.

A = s^2

A = 7^2

A = 49

6 0

4 years ago

Find the measure of angle X in the figure below

alexandr1967 [171]

Answer:

50 degrees

Step-by-step explanation:

65 times 2=130

180-130=50

7 0

3 years ago

Find the sumofthe geometrical progression of five terms, of which the first term is 7 and the multiplier is 7.Verify that the su

777dan777 [17]

Answer:

The sum of first five term of GP is 19607.

Step-by-step explanation:

We are given the following in the question:

A geometric progression with 7 as the first term and 7 as the common ration.

$a, ar, ar^2,...\\a = 7\\r = 7$

$7, 7^2, 7^3, 7^4...$

Sum of n terms in a geometric progression:

$S_n = \displaystyle\frac{a(r^n - 1)}{(r-1)}$

For sum of five terms, we put n= 5, a = 7, r = 7

$S_5 = \displaystyle\frac{7(7^5 - 1)}{(7-1)}\\\\S_5 = 19607$

The sum of first five term of GP is 19607.

Verification:

$2801\times 7 = 19607$

Thus, the sum is equal to product of 2801 and 7.

7 0

3 years ago

OPEN ENDED QUESTION

posledela

Answer: I hope this helps :)

Substitution: 45+15(6-1)

Simplify: 120

Step-by-step explanation:

Calculate within parenthases (6-1) =5 =45+15(5)

Multiply left to right 15(5)=75 =45+75

Add leftg to right 45+75=120

Answer = 120

4 0

3 years ago

(X-2)²+(y-1)²=25 how do you do this problem?

Tasya [4]

$(x-x_c)^2+(y-y_c)^2=r^2\\
(x_c,y_c) - \text{center}\\\\
(x-2)^2+(y-1)^2=25\\
\text{center}=(2,1)\\
r=\sqrt{25}=5$

5 0

3 years ago