A trapezoid has bases of lengths 40 and 42. Find the trapezoid's height if its area is 820 ​

Answers

Answer 1

Answer:

Height = 20

Step-by-step explanation:

trapezoid area = (Sum of bases x height) / 2

((40 + 42) x h ) / 2 = 820

82 x h = 1640

h = 20


Related Questions

f(4) =
If g(x) = 2, x =

Answers

Given:

The graph of two function f(x) and g(x).

To find:

The value of f(4) and the value of x if g(x)=2.

Solution:

In the given graph red curve is the graph of f(x) and the blue curve is the graph of g(x).

From the given graph it is clear that the value of the function f(x) at x=4 is -10. So,

[tex]f(4)=-10[/tex]

From the given graph, it is clear that the value of function g(x) is 2 at x=0. So,

[tex]g(x)=2,x=0[/tex]

Therefore, the value for the first blank is -10 and the value for the second blank is 0.

Look at the picture

Answers

(0, 9) would be the coordinates of A.
A = ( 9, 1 ) i think this is right??? Not for sure!!!

You have 10 cards numbered 0-9, what is the probability of drawing 1, replacing the cord and then drawing on odd number?​

Answers

Answer:

1/20

Step-by-step explanation:

1/10x5/10=5/100=1/20

Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 20 minutes in 5 hours. How long did they rest in 8 hours?​

Answers

Answer:

32

Step-by-step explanation:

you have to find how many min in a hour so 20 divided by 5 is 4 then 4x8 is 32

Angela is helping her father paint a fence. She can paint 3 sections of the fence in 25 minutes. How many minutes will it take Angela to paint 12 sections of this fence? ​

Answers

Answer:

100 Minutes.

Step-by-step explain:

25 divided by 3 = 8.33333333333, So, 8.3 minutes to paint one section at a time. So, 8.3 x 12 = 99.6. So, 99.6 rounded since the last number is higher than 5 it would go to the next number. So, rounded its 100 minutes.  100 minutes for Angela to paint 12 sections.

Find the circumference and area of a circle with radius 7 m. Use the value 3.14 for pie, and do not round your answers

Answers

Answer:

circumference (c) = 43.96cm

Area (A) = 615.44cm²

Step-by-step explanation:

Here,

Radious (r) = 7 cm

circumference (c) = [tex]2\pi r[/tex]

                            = 2×3.14×7

                            =43.96cm

Area (A) = [tex]4\pi r^{2}[/tex]

              = 4×3.14×7²

               =12.56×49

               = 615.44cm²

Answer:

area:153.86m²

circumfrence:43.96m

Step-by-step explanation:

evaluate each expression for the given values of the variable
3x+5 when x=9 and x=12

PLSSSSS HELP

Answers

18 because 6 2x is 15 and 3 makes 9 evenly and fast and 6 makes 12 fastes and evenly

Any help would be great!!! Thank you

Answers

Answer:

D. ∆ABC ~ ∆DEF

Step-by-step explanation:

The triangles given shows that the three corresponding angles of both triangles are congruent to each other. This means that they have the same shape but different size.

Triangles that are congruent to each other have the same shape and the same size while triangles that have the same shape but different size are similar to each other.

Therefore, ∆ABC is similar to ∆DEF (∆ABC ~ ∆DEF).

find the length x to the nearest whole number​

Answers

Answer:

Its i think 549

Step-by-step explanation:

Write the word sentence as an inequality. Then solve the inequality.
The quotient of a number g and -4 is at most 5 .

Answers

Answer:

g≥-20

Step-by-step explanation:

The quotient of a number g and -4 is expressed as;

g/-4

If the quotient of a number g and -4 is at most 5, this is expressed as;

g/-4 ≤ 5

Multiply both sides by -4

g/-4 * -4 ≤ 5 * -4

g *  ≥ -20

Hence the required solution is g≥-20

Find the unknown length x in the right triangle, to the nearest tenth.

Answers

Answer:

x/sin35=24/sin90

24sin35=xsin90

x=24×0.5736

x=13.7658

to the nearest tenth=13.8

Please help me with this question!

Answers

i think it’s B? because that’s the point of intersection

WILL GIVE BRAINLST

hAVE AN AMAZING DAY

Answers

Answer:

3. 3 and 4

4. √9+√2, 8/3, √5 - 5, -π

Step-by-step explanation:

3. √46/2 is 3.39... which is between 3 and 4

4. √9+√2=4.4..

8/3=2.6...

√5-5= -2.7..

-π= -3.14..

(hope this helps :P)

Plz help! It’s due soon!

Answers

X-int: none
Y-int: (0,27)
Vertex: (-3,18)
AOS: x= -3
Max & Min Value: (-3,18)

POS A triangle has two side lengths, 4 and 9. what is the length of the third side?

Answers

Answer:

5 < x < 13

Step-by-step explanation:

9+4 > x

4 + x > 9

PLEASE HEEEEEEEEELLLLLLLLLPPPPPPP WILLING TO GIVE BRAINLIEST.

Answers

Answer:

7.5

Step-by-step explanation:

there is 1.5 cups of sugar for each cup of flour

1.5x5=7.5

Answer:

7.5 cups of sugar

Step-by-step explanation:

3/2 = 1.5 (this means there is 1.5 cups of sugar for every one cup of flour)

5 * 1.5 = 7.5

Find the value of angle b.

Answers

b=90-64.
b=26 degrees

Hope it helps

The distance of Rome is 15558 write the distance to Rome in scientific notation

Answers

Answer:

1.5558 * 10^4

Step-by-step explanation:

Make sure you write in your units

need help asap plssssssses

Answers

36 min painted 420ft²
1 min——> 420/36
=11 2/3 ft²

∴ 30 mins ——-> 11 2/3 x 30
=350 ft²

Please help me with this :(

Answers

the answer is C have a good day.-

Write down 4
equivalent fractions for
1/8​

Answers

1.  2/16

2. 3/24

3. 4/32

4. 8/64

I hope they are helpful

Answer:

2/16 3/24 4/32 5/40

Step-by-step explanation:

f(x)=−x+2, find f(-6)

Answers

Answer: -4

Step-by-step explanation:

f(x) = -x+2

-6+2

=-4

Expand the following expression 5x(3 – 7y)

Answers

1. Expand by distributing terms.
5x times 3 + 5x times -7y

2. Simplify 5x times 3 to 15x.
15x + 5x times -7y

3. Simplify 5x times -7y to -35xy.
15x - 35xy

Then you’re done. Hopefully this helps.

Help me for 20 points but please give me a correct answer

Answers

Answer:

A. 3x+4y= 7.25

Step-by-step explanation:

Answer: A

Step-by-step explanation:

PLEASE ANSWER THE PIC BELOW

Answers

Answer:

B- 18

Step-by-step explanation:

it occured twice and the rest occurred only once.

Have a great day.

brainiest is appreciated!

Find all the missing elements.
Round to the nearest tenth.

a = 4
b = 5
c = 7


A=? °

B= ? °

C= ? °

Answers

Answer:

[tex]4^2=5^2+7^2-2(5)(7) cos A\\\\[/tex]

[tex]A=34.0^o[/tex]

-----------------

[tex]\frac{4}{Sin34^o} =\frac{5}{SinB} \\\\[/tex]

[tex]B=44.4^o[/tex]

--------------

[tex]7^2=4^2+5^2-2(4)(5)CosC[/tex]

[tex]C= 101.5^o[/tex]

[tex]---------[/tex]

hope it helps...

have a great day!!

All the missing elements of the triangle by the Cosine rule are A = 40°, B = 45°, and C = 102°.

Given that,

Three sides on a triangle are,

a = 4

b = 5

c = 7

Used the formula of the Cosine rule which states that,

a² = b² + c² - 2bc cos A

b² = a² + c² - 2ac cos B

c² = a² + b² - 2ab cos C

Where, a, b, and c are three sides and A, B, and C are angles of a triangle.

Now, apply the Cosine rule to find the all angles of a given triangle,

a² = b² + c² - 2bc cos A

Substitute a = 4, b = 5 and c = 7,

4² = 5² + 7² - 2 × 5 × 7 cos A

16 = 25 + 49 - 70 cos A

70 cos A = 74 - 16

70 cos A = 58

Divide both sides by 58,

cos A = 58/70

cos A = 0.83

A = cos ⁻¹ (0.83)

A = 33.9°

Round to the whole number,

A = 40°

b² = a² + c² - 2ac cos B

Substitute a = 4, b = 5 and c = 7,

5² = 4² + 7² - 2 × 4 × 7 cos B

25 = 16 + 49 - 56 cos B

25 = 65 - 56 cos B

56 cos B = 65 - 25

56 cos B = 40

cos B = 40/56

cos B = 0.71

B = cos ⁻¹ (0.71)

B = 44.7°

Round to the whole number,

B = 45°

c² = a² + b² - 2ab cos C

Substitute a = 4, b = 5 and c = 7,

7² = 4² + 5² - 2 × 4 × 5 cos C

49 = 16 + 25 - 40 cos C

49 = 41 - 40 cos C

40 cos C = 41 - 49

40 cos C = - 8

cos C = - 8/40

cos C = - 1/5

cos C = - 0.2

C = cos ⁻¹ (0.2)

C = 101.5°

Round to the whole number,

C = 102°

To learn more about the triangle visit;

brainly.com/question/1058720

#SPJ6

what is the prime factorization of 90​

Answers

Answer:So, the prime factors of 90 are 2 × 3 × 3 × 5 or 2 × 32 × 5, where 2, 3 and 5 are the prime numbers.

Step-by-step explanation:

A 20%discount was offered on office equipment costing R3800. 00. What was the selling price of the office equipment ​

Answers

Answer:

the selling price of the office equipment is R3040

Step-by-step explanation:

original price of the office equipment, C = R3800

discount for the selling price, d = 20% = 0.2

Discounted amount = 0.2 x R3800

                                 = R760

The selling price of the office equipment is calculated as follows;

The selling price = original price - discounted amount

The selling price = R3800 - R760

                             =  R3040

Therefore, the selling price of the office equipment is R3040

                   

I need help fast. Please help me

Answers

Answer:

The answer is A, the first one 3÷1/3 =9

A a a a a a aaaaaaaaaaaaaaaaa

How do I slow this problem

Answers

Answer:

D.)  4

Step-by-step explanation:

Here,

1.25(4x-10)=7.5

5x-12.5=7.5

5x=7.5+12.5

x=20/5

x=4

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