explain in your own words how knowing the formula for the area of a parallelogram is useful for figuring out the area of a trapezoid. please help, thank you!

answer - hey, if your looking for the answer to this question, i figured it out! You can put two identical trapezoids together to form a parallelogram with the same height as the trapezoid and a base length equal to the sum of the base lengths of the trapezoid. The area of the parallelogram is (b1 + b2)h, so the area of the trapezoid is one-half of this area. (let me know if this is correct of helpful)

Answer:

volume = 130 in ^3

Step-by-step explanation:

volume = 5x8x3.25 = 130 in ^3

Answer:

The awnser would be 9 because its under the sum of 10

Answer:

9 (see below)

Step-by-step explanation:

So, for a triangle, if you add any two sides, it will always be greater than the third side.

So if a triangle has sides of 1, 1, and 1:

1 + 1 > 1

1 + 1 > 1

1 + 1 > 1

So this is a triangle.

For a triangle with the sides of 3, 3, and 9:

3 + 9 > 3

9 + 3 > 3

3 + 3 > 9   (this one is not true)

So, these can't be the values of the sides of a triangle.

For your situation, you have a triangle with sides of 4, 6, and x.

We need to find out what x is, so:

4 + 6 > x

4 + x > 6

6 + x > 4

Isolate x to one side and simplify all the inequalities. You will get:

x < 10

x > 2

x > -2

So, -2 < x < 10.

If you plug in your answer choices, it will be 9.

Answer:

5x - 2y= -28

Step-by-step explanation:

Since the y= mx + b format would be: y= 5/2x + 14

Standard form is: 5x - 2y= -28

Answer:

The Answer Is A.

How I Found The Answer:

4 - 1 = 3

X Comes Before Y In Pairs.

Answer:

wouldn't it be A?

Step-by-step explanation:

3+1=4

3x+1y=4

Answer:

13

Step-by-step explanation:

It is a parallelogram so the opposite angles are the same.

All angles sum to 360 degrees.

This means that the adjacent angles sum to 180 degrees.

4a + 11 + 9a = 180 = 13a + 11

13a = 169

a=13

Answer:

Step-by-step explanation:

5[tex]\frac{1}{2}[/tex]+2[tex]\frac{1}{7}[/tex]

5[tex]\frac{7}{14}[/tex]+2[tex]\frac{2}{14}[/tex]

7 9/14  or 7[tex]\frac{9}{14}[/tex]

Answer:

[tex] \frac{135}{14} [/tex]

Answer:

40%

Step-by-step explanation:

There's a total of 15 squares.

So the percentage that is gray would be [tex]\frac{6-gray-squares}{15-total-squares}[/tex] which simplifies to [tex]\frac{2}{5}[/tex] in fraction form or 40%

Answer:

A

Step-by-step explanation:

give me da 20 pointssss

Answer:

What on my screen the pic is blurry?

Step-by-step explanation:

Answer:

X= .5 (decimal form)

X= 1/2 (Exact form)

Answer: 5

Work Shown:

f(x) = 2x+1

f(2) = 2*2+1 ... x has been replaced with 2

f(2) = 4+1

f(2) = 5

The input is x = 2. The output is y = 5.

Answer:

0.933333 as decimal and its 93.33333% in percent

Step-by-step explanation:

Answer:

b) The result can be shown in multiple forms.

Exact Form:

[tex]\frac{26}{3}[/tex]

Decimal Form:

8.¯6

Step-by-step explanation:

Answer:

The answer will be MAB= 19.53m

Step-by-step explanation:

hope it helps have a great day ^_^

Answer:

46.25

Step-by-step explanation:

18.50/2=9.25

9.25x5=46.25

I hope this helps :)

Answer:

Lisa is 23 years old.

Step-by-step explanation:

36 (total) - 13 (brothers age) = 23 (Lisa's age)

23+13=36

Answer:

169 is the answer

Step-by-step explanation:

............

Answer:

i think b???

Step-by-step explanation:

Answer:x=10 y= 10 square root 2

Step-by-step explanation:

Answer:

Impossible not likely to happen

Answer:

100.53

Step-by-step explanation:

Following the formula, V=πr2h 3, you would get 100.53 with 6 as the height and 4 as the radius.

Answer:

2x-y=0

x=1/2y

Step-by-step explanation:

Answer:

Your solution is (1/2, 1).

Step-by-step explanation:

3х + Зу = -x + 5y

First we want to look at each side of the equation separately.

3х + Зу ⇒ This expression is fully simplified because you cannot add different variables together.

-x + 5y ⇒ This expression is fully simplified because you cannot add different variables together.

3х + Зу = -x + 5y

Now, let's bring the like terms together.

[add x to both sides]

x + 3x + 3y = -x + x + 5y

4x + 3y = 5y

[subtract 3y from both sides]

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

4x = 2y

We want to solve for one variable at a time, so let's isolate x.

[divide both sides by 4]

4x/4 = 2y/4

x = 1/2y

Now we have an expression for x. Plug this expression in to your original equation.

3х + Зу = -x + 5y

3(1/2y) + 3y = -(1/2y) + 5y

According to PEMDAS (parentheses/exponents | multiplication/division | addition/subtraction), we should multiply first.

3(1/2y) + 3y = -(1/2y) + 5y

3/2y + 3y = -1/2y + 5y

Now let's add on each side.

9/2y = 9/2

Now we need to isolate y by dividing both sides by 9/2 (or multiplying by its reciprocal 2/9 ← This is often easier to understand when written)

[tex]\frac{2}{9} (\frac{9}{2} y) = \frac{9}{2} (\frac{2}{9} )[/tex]

In this form, we can see that the fractions cancel each other out.

y = 1

Now that we have the value of y, plug it into our equation for x.

x = 1/2y

x = 1/2(1)

Multiply.

x = 1/2

Your solution is (1/2, 1).

You're almost done! Check your answer by plugging in both these values in to your original equation.

3х + Зу = -x + 5y

3(1/2) + 3(1) = -(1/2) + 5(1)

Multiply.

3(1/2) + 3(1) = -(1/2) + 5(1)

3/2 + 3 = -1/2 + 5

Add.

9/2 = 9/2

This equation is true, therefore your answer is correct!

Hope this helps!

Answer:

X= -4/3

Step-by-step explanation:

Answer:

30%

Step-by-step explanation:

There are 6 shaded squares out of 20 squares. That is the same as 30 out of 100. 30/100=30%

Answer: 30%

Step-by-step explanation:

5*4 is 20.

So that your area.

6/20 converted to percentage: 30%

it's 7

Hope it helps

Have a good day

Answer:

The 5th term is 16

Step-by-step explanation:

Given data

a= 12

say we want to find the fifth term

n=5

d= 1

The expression for the nth term given as

an = a + (n – 1) × d

Substitute

an= 12+(5-1)1

an= 12+4

an= 16

Answer:

27

Step-by-step explanation:

Verified correct with test results.

Answer:

$1.25

Step-by-step explanation:

5 dollars for four pounds

one pound = $5 / 4 = $1.25

Answer: 80 cents

Step-by-step explanation: Divide 4 & 5 and get 0.8

To check your answer just multiply 0.8 and 5 which equals 4

So 1 lb cost 80 cents

Answer:

49

Step-by-step explanation:

First plug in 7 for x and solve

7(14-7)

7(7)

49

Answer:

its 49 make me brainiest

Step-by-step explanation:

14-x you get rid of the x and turn it in to 7. 14-7= 7 so then you multiply 7 with 7

Answer:

10 m / minute

Step-by-step explanation:

Starting position = North ; back to North gives a Displacement of 0 ; the from that position to 900 m south gives a final Displacement of 900

Displacement / time

Displacement = 900

Time = 9 minutes

900 / 9

= 10 m / minute

Answer

I think it is number 5

Step-by-step explanation:

Answer:

A=(−1,3),B=(4,−9)

We know that the distance between two points

d=

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Therefore,

d=

(4−(−1))

2

+(−9−3)

2

d=

(4+1)

2

+(−12)

2

d=

(5)

2

+(−12)

2

d=

25+144

d=

169

d=13 units

The side lengths of A'A and B'B are 18 and 9 respectively.

When the respective sides are proportional and the corresponding angles are congruent, two triangles are said to be similar.

Given that, segment A'B' is parallel to segment AB.

Let A'A =x and B'B = y.

Since the segments are parallel the triangles ΔA'B'C and ΔABC are similar.

As per the property of similar triangles, it follows:

12/8 = (12 + x)/20

12 + x = (12/8)20

x = 18

And,

6/8 = (6+y)/20

6 + y = (6/8)20

y = 9

Hence, the side lengths of A'A and B'B are 18 and 9 respectively.

Learn more about similar triangles:
https://brainly.com/question/25882965

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