Which figures are polygons select each correct answer

Answer:

D

Step-by-step explanation:

7 x 6 = 42 divided by 2 21 + 7 x 5 = 35 divided by 2 = 17.5 + 10 x 7 = 70 = 108.5

Answer:

[tex]Area = 108.5 ft^{2}[/tex]

Step-by-step explanation:

Basic info you need to know first:

Left triangle:

[tex]\frac{1}{2} (6)(7)=\frac{42}{2}=21[/tex]

Right triangle:

[tex]\frac{1}{2}(7)(5)=\frac{35}{2}[/tex]

Rectangle:

[tex]10(7)=70[/tex]

Then add all the areas together

[tex]21+70+\frac{35}{2} =91+17.5=108.5[/tex]

Answer:

1. You should use subtraction (20-12.68=7.32)

2. You should use multiplication

3. You need to know 5 boxes and $5.29

4. You need to know 10 packages and 2 cases

Step-by-step explanation:

I hope this helpss!!

Answer:

Its c=3d.

Step-by-step explanation:

Because you multiply d times 3 which equals 6.

Answer:

x=2 and y=5

Step-by-step explanation:

Steps:

I will solve your system by substitution.

x=y−3;2x+y=9

Step: Solve x = y − 3 for x:

Step: Substitute y − 3 for x in 2x + y = 9:

2x+y=9

2(y−3)+y=9

3y−6=9(Simplify both sides of the equation)

3y−6+6=9+6(Add 6 to both sides)

3y=15

3y/3=15/3  (Divide both sides by 3)

y=5

Step: Substitute 5 for y in x = y − 3 :

x=y−3

x=5−3

x=2(Simplify both sides of the equation)

Answer:

x=2 and y=5

Answer:

x = 2          y = 5

Step-by-step explanation:

Since we know that

x = y - 3

We can insert that into the equation above:

2(y-3) + y = 9

After having this equation, we can start by multiplying the numbers/variables in the parenthesis by 2.

2y - 6 + y = 9

Then add the common multiples (2y and y)

That makes:

3y - 6 = 9

We need to get 3y on a side by itself, so to do this, we can add 6 to (-6) and (9)

That makes:

3y = 15

Divide the 3 by 3 and 15 to get the y on its own:

y = 5

Now we need to find x, and to do this we can insert y into the equation:

2x + 5 = 9

Now subtract the 5 from the (5) and (9) and you'll get

2x = 4

Then you divide the 2 on both sides and get

x = 2

You can check your work by inserting x and y into the equation

2(2) + 4 = 9  

Sorry for this super long explanation, and hope this helps

Answer:

total cost=3(x)+25

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

Answer:

x = -10

Step-by-step explanation:

x+7 = -3

Subtract 7 from each side

x+7-7 = -3-7

x = -10

Answer:

c=p*0.99

you gonna multiply the amt of patatoes by the cost of one to get the total like if you were buying 5 you would multiply  5 by 99 to get the total    

P = $0.99

C = [tex]P * x[/tex]

[Note: x is how many pounds of potatoes you buy.]

Hope this helped, I'm not too good with relations.

Answer:

answer is 13/3

Step-by-step explanation:

1/12 x 4=1/3

1/3=m-4

m=1/3+4

m=1/3+12/3

m is 13/3

Answer:

Yeah it is 4.

Step-by-step explanation:

Answer:

36.7

Step-by-step explanation:

Answer:

Right

Step-by-step explanation:

There is a side that is 90 degress

Answer:

multiply first equation with 3 and second equation with 5

Answer:

I'm really sorry I wish I could give you the right answer but maybe if you like put it in like different parts cause it's like I can't read it to sa jumbled up but I will answer you if you put it in different parts please

Answer:

125.6 inches

Step-by-step explanation:

Diameter (d) = 40 inches

circumference (c)

= π * d

= 3.14 * 40

= 125.6 inches

Hope it will help :)

Answer:

125.6

Step-by-step explanation:

diameter= 40

40 x π = 125.6

40 x 3.14 = 125.6

Step-by-step explanation:

1a. ( 3, -4)

1b. ( 8, -2)

1c. ( 10, -10)

hope it helps!

Answer:

3%

Step-by-step explanation:

739 - 716 = 23 (change)

percentage change = change/original price X 100

23/716 = 0.03212290

0.03212290 X 100 = 3

Answer:

90 degree

Step-by-step explanation:

I just know (I don't I just need points). : )

Answer:

(-3, -1); x = -3; y = -1

Step-by-step explanation:

-3x + 5y = 4; x + y = -4

solving via substitution

rearrange second equation: y = -x - 4

-3x + 5(-x - 4) = 4

-3x - 5x - 20 = 4

-8x -20 = 4

-8x = 24

x = -3

- 3 + y = -4

y = -1

(-3, -1)

Check

- 3 + -1 = -4

Answer:

Terrence would have earned $1575 dollars

Step-by-step explanation:

First we multiply 1.25 by 105.

1.25 * 105 = 131.25

Next we multiply 131.25 by 12.

131.25 * 12 = 1575.

So, the answer is 1575.

Hope this helps! :)

Answer:

-8 would be the answer

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

(-1)*8

-(1*8)

= -8

Answer:

about 4 out of 10

Step-by-step explanation:

Probabilities are used to determine the chances of events

The probability that two boys are selected is 0.1517

The given parameters are:

Boys = 12

Girls = 18

Total = 30

Given that the selection is without replacement, the probability that two boys are selected is:

p = 12/30 * 11/29

So, we have:

p = 0.1517

Hence, the probability that two boys are selected is 0.1517

Read more about probability at:

https://brainly.com/question/25870256

Answer:

4

Step-by-step explanation:

Answer:

Step-by-step explanation:

3) using the property of opposite angles we can work out that HFJ=138

Its that simple. if two lines intersect, the angles on either side are the same

4)I don't know how to find segments of circles...

Step-by-step explanation:

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you

Answer:

a= -2b

Step-by-step explanation:

math.

Answer:

No

Step-by-step explanation:

If you plug 0 into y and 2 into x 0 does not equal 2.