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3 years ago

I can’t figure out way to solve this, couldn’t find anyone for help Please explain

Mathematics

2 answers:

wlad13 [49]3 years ago

7 0

Is there a c option? Or is it just A and B?

Savatey [412]3 years ago

7 0

720. A quadrilateral has 360 degrees in all. There are 2, 360 x 2 = 720

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5x + 2 = x – 10 help

olga2289 [7]

Answer:-3/4

Step-by-step explanation:

5x+2=x-1

5x-x=-1-2

4x=-3

X=-3/4

4 0

3 years ago

Rolando needs to paint the exterior of his house. He calculates that he will be painting 918.75 square feet of the house. The lo

Gala2k [10]

I think it is 85.75 square feet

6 0

3 years ago

Identify the sequence as arithmetic, geometric, both, or neither. 50, –50, 50, –50, . . . both arithmetic geometric neither desc

stellarik [79]

Answer:

The sequence is geometric.

Step-by-step explanation:

In Arithmetic sequence, there is a common difference between any two consecutive terms but in Geometric sequence, there is a common ratio between any two consecutive terms.

Given sequence is: 50, -50, 50, -50,.................

Lets assume, the terms as $a_{1}, a_{2}, a_{3}, a_{4},...........$

Checking for common difference:

$a_{2}-a_{1}= (-50)-(50)= -100\\ \\ a_{3}-a_{2}=(50)-(-50)=100\\ \\ a_{4}-a_{3}=(-50)-(50)=-100$

As there is no common difference, so it's not an arithmetic sequence.

Checking for common ratio

$\frac{a_{2}}{a_{1}}=\frac{-50}{50}=-1\\ \\ \frac{a_{3}}{a_{2}}=\frac{50}{-50}=-1\\ \\ \frac{a_{4}}{a_{3}}=\frac{-50}{50}=-1$

As there is a common ratio, so it's a geometric sequence.

8 0

4 years ago

Im not really good at seventh grade math I need some help!!

Darina [25.2K]

Answers:

1/2a= 8

Multiply by 2/1 on both sides

1/2(2/1)a= 8(2/1)

Cross out 1/2 and 2/1 equals to a

a= 16

4n= 32

Divide by 4 for both sides

4n/4= 32/4

n= 8

3x= 36

Divide by 3 for both sides

3x/3= 36/3

x= 12

m/3= 2

Multiply by 3/1 for both sides

3/1*m/3= 2(3/1)

Cross out 3/1 and 3 becomes m

m= 6

x-8= 12

Move -8 to the other side. Sign changes from -8 to +8

x-8+8= 12+8

x= 20

48= 3k

Divide by 3 for both sides

48/3= 3k/3

k= 16

13/b= 0

Multiply by 1/13 for both sides.

13/b( 1/13)= 0(1/13)

b= 0

39= 13y

divide by 13 for both sides

39/13= 13y/13

y= 3

5 0

3 years ago

Find the area of this rectangle

azamat

$48 {ft}^{2}$

A = length × width

= 12 × 4

= 48 ft ^2

8 0

3 years ago

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