A parallelogram has a base of 9 centimeters and a height of 21 centimeters. What is the area of the parallelogram?

Answer:a) Which of the shapes is a heptagon?

Step-by-step explanation:a) Which of the shapes is a heptagon?

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Work Shown:

c = price of coat before discount

0.33c = discount = amount you save

c - 0.33c = original price minus discount = final price

c - 0.33c = 1c - 0.33c = (1-0.33)c = 0.67c = final price

In short, c - 0.33c = 0.67c

They are two ways of expressing the same thing.

You can think of it like saying 100% - 33% = 67%

If you save 33%, then you still have to pay the remaining 67% of the original cost.

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Example:

Let's say the coat is $100 before the discount

c = 100

0.33*c = 0.33*100 = 33 dollars is how much you save

c - 0.33c = 100 - 33 = 67 dollars is the final price

0.67c = 0.67*100 = 67 matches with the previous figure above

Answer:

Step-by-step explanation:

The sum of the sequence is the average of first and last terms times the number of terms.

(3n+4) for 3rd and 7th terms and the number of terms is 7-3+1=5 so

(13+25)5/2

38(5/2)

19(5)

95

[tex] \sqrt{8} =2 \sqrt{2} [/tex]

[tex] \sqrt{8} [/tex]

[tex] = \sqrt{(4 \times 2)} [/tex]

[tex] = \sqrt{4} \times \sqrt{2} [/tex]

[tex] = 2 \sqrt{2} [/tex]

Answer:

You can try E, G, D, N, L, and F. I will help you if you have any questions on it, but I will give you a little hint that do the way I did. It will make it much more easy to understand it. Hope this helps, thank you :) !!

Answer:

2:3 (2 bikes for every 3 people)

Step-by-step explanation:

hope this helps

Answer:

x=10

Step-by-step explanation:

see picture for explanation

Answer:

13

Step-by-step explanation:

Answer:

B) 40

Step-by-step explanation:

2:10    2 out of 10

40:200      40 out of 200

Answer:

Step-by-step explanation:

height/A = tanA

height/40 = 3/4

height = 30 meters

Answer:

Hello! :) have a good day!

It would be D. 405

Answer:

i tried looking it up but i just got this far

Step-by-step explanation:

Answer:

D. not necessarily congruent

I got it right

Answer:

solution

by using pythagorus theorem

h^2 =p^2 +b^2

[tex]3 \sqrt{2} \\ [/tex]

sine E =p/h

=

[tex]3 \sqrt{2} \div 10[/tex]

Answer:

Step-by-step explanation:

A lot to answer here, so lets get straight into it.

2y + 8 for y = -2

We just need to substitute :

2(-2) + 8

-4 + 8

4

-5x + 6 for x = -8

Substitute :

-5(-8) + 6

40 + 6

46

3r - 2s + 12 for r = 10 and s = 4

Substitute :

3(10) - 2(4) + 12

30 - 8 + 12

22 + 12

34

6y - 4x - 9 for x = 6 and y = -3

Substitute :

6(-3) - 4(6) - 9

-18 - 24 - 9

-42 - 9

-51

A number t decreased by 13

t - 13

Six times a number y

6y

Three more than four times a number p

4p + 3

Two times a number v decreased by 7

2v - 7

Six times the sum of seven and a number x

6(7 + x)

-8b - 10b + 7

-18b + 7

13 + 7t - 9

13 - 9 + 7t

4 + 7t

-9n - 8m + 8 - 3n + 6m - 2

-9n - 3n = -12n

-8m + 6m = -2m

8 - 2 = 6

-2m - 12n + 6

-5x + 3y + 9x + 7

-5x + 9x = 4x

3y = 3y

7 = 7

4x + 3y = 7

-2y + 4x - 3y + 6x - 12 for x = 2 and y = -4

Substitute :

-2(-4) + 4(2) - 3(-4) + 6(2) - 12

8 + 8 + 12 + 12 - 12

16 + 12 + 12 - 12

28 + 12 - 12

40 - 12

28

Answer:

Sorry to say this... but neither of them have a solution of (2,1)

Step-by-step explanation:

The top one has a solution of (-2,-1). The one on the bottom has a solution of (-2,1). So... I'm not sure how this can help... but yeah...

Answer: 700

Step-by-step explanation:

35 x 20 = 700

Answer:

350

Step-by-step explanation:

b

Answer:

cos 30=b/h=√3/2.......(1)

sin30=p/b=1/2.......(2)

we need b=?

h=2b/√3. h=2√2

now.....2b/√3=2√2

b=mBC=√6

Answer: X = -4

Step-by-step explanation:

90 - 5x + 62 -2x = 180

152 - 7x = 180

-7x = 28

x = -4

Check your answer by pluging in the vaule of x

90 - 5(-4)

90 + 20 = 110

62 - 2(-4)

62 + 8 = 70

110 + 70 = 180

Checks out.

Answer: 110 degrees and 70 degrees

Step-by-step explanation:

These angles are same side (of the traversal line) interior (inside the parallel lines) angles. Same side interior angles sum to 180 degrees. Add the two angles together and set them equal to 180. (90-5x) + (62-2x) = 180

Combine like terms. 90+62= 152 and -5x + -2x = -7x rewrite the equation as 152 + -7x = 180

Subtract 152 from both sides of the equation.

-7x = 28. Now isolate x by dividing both sides by -7. X= -4. Now we can substitute -4 back into the original equations. 90 -5(-4) = 90 +20 = 110 and 62 - 2(-4) = 62 + 8 = 70

We can double check our work to see if these two indeed add up to 180. 110 + 70 = 180

Answer:

The speed of car is 45.3 miles per hour.

Answer:

It would be A

Step-by-step explanation:

If you are minusing by 5 in the equation then that means that they graph has gone down by 5 units not up. and since 4x and is positive and -2x is negative the graph would flip over the years axis

Answer:

45x-6

Step-by-step explanation:

math

way

Answer:

$7

Step-by-step explanation:

Answer: x=8 angle BDC=77

Step-by-step explanation:

9x-12x=-19-5

-3x=-24

x=8

12x(8)-19

=77

(9x + 5) and (12x - 19) are one angle split equally.

(9x + 5) = (12x - 19)

The value of m∠BDC is 65°

It is a two-dimensional figure which has three sides and the sum of the three angles are equal to 180 degrees.

We have,

(9x + 5) and (12x - 19) are one angle split equally.

So,

9x + 5 = 12x - 19

We will solve for x.

9x + 5 = 12x - 19

Add 19 on both sides.

9x + 5 + 19 = 12x

Subtract 9x on both sides.

24 = 12x - 9x

24 = 3x

Divide both sides by 3.

24/3 = x

x = 7

Now,

The value of m∠BDC.

= 12x - 19

= 12 x 7 - 19

= 84 - 19

= 65°

Thus,

The value of m∠BDC is 65°

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

Answer: 7

Step-by-step explanation:

4.25+6.75=11

11+7=18

18-11=7

Answer:

11m-4

Step-by-step explanation:

Add 4.25m and 6.75m= 11m

7+-11= -4

Answer:

Question 1: 6

Question 2: 15

Sorry I dont know the last one but the other ones are correct

Step-by-step explanation:

Answer:

Need more info to answer your question!

Step-by-step explanation: