A trapezoid has a height of 3 meters, a base length of 8 meters, and an area of 30 square meters. What is the length of the base?

Answers

Answer 1

Answer:

Length of the second base will be 12 meters.

Step-by-step explanation:

Area of a trapezoid is given by the formula,

Area = [tex]\frac{1}{2}(b_1+b_2)h[/tex]

Here, b₁ and b₂ are the bases of the trapezoid and 'h' is the vertical distance between the bases.

By substituting the values in the formula,

[tex]30=\frac{1}{2}(8+b_2)3[/tex]

[tex]60=3(8+b_2)[/tex]

[tex]20=8+b_2[/tex]

[tex]b_2=12[/tex]

Therefore, length of the second base will be 12 meters.


Related Questions

|2a+1|=1 plz help and no link

Answers

Answer:

2a+1=1

or, 2a=1-1

or, 2a=0

or, a=0/2

or, a=2

Step-by-step explanation:

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Answer:

A

Step-by-step explanation:

Answer:

D) F = 9/5C + 32

Step-by-step explanation:

The lengths, in cm, of the sides of a triangle are 3x – 5, 2x – 1 and x + 1 (a) Write down an expression, in terms of x, for the perimeter of the triangle.

Answers

Answer: [tex]6x-5[/tex]

Step-by-step explanation:

Given

The side lengths of a triangle are  [tex]3x-5, 2x-1,\text{and}\ x+1[/tex]

Perimeter(P) is the sum of the side length of the triangle i.e.

[tex]\Rightarrow P=3x-5+2x-1+x+1\\\Rightarrow P=6x-5[/tex]

Therefore, the perimeter of the triangle is [tex]6x-5[/tex]

Solve for the value of x in the following parallelograms.

Helppp, thanksss:)​

Answers

1) combined total of the degrees should be 360. Opposite angles are congruent. So if one angle is 80 so is the one opposite it. 360-160=200
Then divide by two because u need to find x which is one angle. X is 100
2) opposite sides are congruent so you set them equal.
31=2x-5
-5 -5
26=2x
/2 /2
13=x
3) you set them equal because opposite angles are congruent
x+3=4x-27
-x -x
3=3x-27
+27 +27
30=3x
/3 /3
10 = x

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Step-by-step explanation:

B the median is less than the mean

HELP DUE IN 60 MINS!


1. Slope of HE =??


2. Slope of GF =??


3. Slope of HG =??


4. Slope of EF =??

Answers

Answer:

Use coordinates of the vertices and the slope formula.

H(-3, 0), E(1, 4), F(3, 2), G(-1, -2)

1. Slope of HE:

m = (4 - 0)/(1 + 3) = 1

2. Slope of GF:

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

3. Slope of HG:

m = (-2 - 0)/(-1 + 3) = -1

4. Slope of EF:

m = (2 - 4)/(3 - 1) = -1

Please, help! Help! Help!

Answers

Answer:

HOW DO I ANSWER THIS

Step-by-step explanation:

yo i need help with this question please and thank u i need the correct answer to please i will give u a brainliest as well

Answers

V = πr ^2 h
V = π (3)^2 (5)
V = π (9) (5)
V = π 45
V = 141.3 in
141.3 divided by 8 = 17.7

A chemist has a 100 gram sample of a radioactive
material. He records the amount of radioactive material
every week for 6 weeks and obtains the data in the
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look at the picture please <3 i really need this asap

Answers

Answer:

75

Step-by-step explanation:

did it 5 mins ago

A restaurant wants to study how well its salads sell. The circle graph shows the sales over the past few days. If 5 of the salads sold were Caesar salads, how many total salads did the restaurant sell?​

Answers

Answer:

20

Step-by-step explanation:

Factor each expression completely
4x² + 6x – 40
Show your work!!!

NO LINKS PLS

Answers

Answer:

4x²+6x-40

2(2x²+3x-20) factor out 2

2(2x²+8x-5x-20) split the three into a difference

2(2x(x+4)-5x-20) factor the 2 out of first pair of parenthesis

2(2x(x+4)-5(x+4)) factor the 5 out of second pair of parenthesis

2(x+4)(2x-5) factor

= 2(x+4)(2x-5)

Step-by-step explanation:

i hope this helps :)

PLEASE HELP IVE BEEN TRYING FOR HOURS!! - algebra 1

Answers

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

5 x 1/9 x 8
please help

Answers

Answer:

4 4/9

Step-by-step explanation:

What is the slope of the line ?

Answers

Answer:

The slope or gradient of a line is a number that describes both the direction and the steepness of the line.

Step-by-step explanation:

Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

Uehehejjdjdjejjejejjdjdjejejejejejjejejejeejjd

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Answer:

kgkbfkbfbk3grrkmfbhrfikrk

Answer:

thank you for the free point i guess

Step-by-step explanation:

can u mark me brainlest plz

gjnrijnrtibfnsibneifn





12 + 3y = 21
Expression or Equation:

Answers

It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.

Answer:

equation

Step-by-step explanation:

12 + 3y = 21

-12. -12

__________

3y = 9

y = 3

Find the length of each arc. Use the exact answer

Answers

Answer:

Option D = 16π/3 ft

Step-by-step explanation:

Arc length formula is written Mathematically as:

Arc length = 2πr × θ /360

r = 4 ft

θ = Central angle in degrees = 240°

2 × π × 4 × 240/360

8π × 240/360

8π × 20/30

16π/3 ft

So, the arc length is 16π/3 ft

Solve the following equation by completing the square. x2-18x+78=0

Answers

The answer is 10.73 btw hope this helps

Help ASAP pls now and thank u

Answers

Answer:

A)25

Step-by-step explanation:

5 x 5 = 25

Answer:

B.......

because to work out the area of a sphere we use

4 pie (r)²

Skill
Figure A is a scale image of figure B.
Area
Figure A
Area
probi
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Prace
upo
Figure B
Verti
supp
12
2
Figure A maps to figure B with a scale factor of
7
Unit
Test
What is the value of x?

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Answer:

42

Step-by-step explanation:

you have to do 12 ÷2/7 to get the answer

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Answer:

supply (B)A step in process (A) (b)(A)

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Answer:

3 17/50

Step-by-step explanation:

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Answer:

Step-by-step explanation:

A  find the main idea

M -1

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Hello, I Am BrotherEye

Answer:

Is This Question Still Require My Attention?

Step-by-step explanation:

14m to 140cm witch is more

Answers

Answer:

14 m is more

Step-by-step explanation:

14 meters = 1400 cm

14 x 100=1400

Answer:

14 m is more

Step-by-step explanation:

1 m = 100 cm

14 m

= 14 x 100

= 1400 cm

1400 cm > 140 cm

14 m > 140 cm

1.2 career planning financial algebra

Answers

Needs more info about your question please

solve 15=2y - 5 (for homework)

Answers

y=10

2×10=20-5=15

.......

Answer:

y=10

Step-by-step explanation:

15 = 2y - 5

add 5 to both sides

15 + 5 = 2y - 5 + 5

add the numbers

20 = 5y

divide

y = 10

7.8x = 32.76


Show your work

Answers

Answer:

x=4.2

Step-by-step explanation:

7.8x  =   32.76

/7.8          /7.8

x=4.2

y = x2 + 12x + 30
8x − y

Answers

8x - x2+ 12x +30
6x+12x +30
18x +30

8x- x2 +12x +30
-4x -x2 + 30

If the x2 was a mistake ignore the second one. The first should be correct.

Which data set has a variation, or mean absolute deviation, similar to the data set in the given dot plot

Answers

Answer:

The anwser is C

Step-by-step explanation:

i did the test

A rectangular prism has a legnth of 9 in., a width of 4 in., and a height of 1 1/2 in.

The prism is filled with cubes that have edge lengths of 1/2 in.

How many cubes are needed to fill the rectangular prism?

Enter your answer in the box.

TO FILL THE RECTANGULAR PRISM, _____ CUBES ARE NEEDED

Answers

Answer:

432 cubes

Step-by-step explanation:

V = 9 x 4 x 1.5 = 54 in³

V = 1/2 x 1/2 x 1/2 = 1/8 in³

54/(1/8) = 432 cubes

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