1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mashcka [7]
3 years ago
11

The formula for a trapezoid relates the area A, the two bases, a and b, and the height, h. Solve for a

Mathematics
1 answer:
den301095 [7]3 years ago
8 0

Answer:

a=\frac{2A}{h}-b

Step-by-step explanation:

we know that

The formula to calculate the area for a trapezoid is equal to

A=\frac{1}{2}(a+b)h

where

a and b are the parallel bases

h is the height of trapezoid

A is the area

<em>Solve for a</em>

That means ----> isolate the variable a

Multiply by 2 both sides to remove the fraction in the right side

2A=(a+b)h

Divide by h both sides

\frac{2A}{h}=a+b

Subtract b both sides

\frac{2A}{h}-b=a

Rewrite

a=\frac{2A}{h}-b

You might be interested in
Express in scientific information notation 417.8
bogdanovich [222]

Answer:

4.178×10 to the second power

Step-by-step explanation:

Move the decimal twice to the Left

5 0
3 years ago
Read 2 more answers
Given csc A= 37/12 and that angle A is in Quadrant I, find the exact value of sec A in
vredina [299]

Answer:

Step-by-step explanation:

Below is the pic of how this would be set up in order to determine what it is you are looking for. The angle is set in QI, and since csc A is the reciprocal of sin, the ratio is hypotenuse over side opposite. Solve for the missing side using Pythagorean's Theorem:

37^2=12^2+b^2 and

1369 = 144 + b² and

1225 = b² so

b = 35

The sec ratio is the reciprocal of cos, so if cos is adjacent over hypotenuse, the sec is hypotenuse over adjacent, which is 37/35

7 0
3 years ago
Which of the following lines is parallel to the line that passes through (−1, −3) and (5, 0)?
AlexFokin [52]

Answer:

depends on the options

Step-by-step explanation:

a parallel line would be y = 1/2x + b, where b is any number

4 0
2 years ago
You are skateboarding at a pace of 30 meters every 5 seconds. your friend is in-line skating at a pace of 9 meters every 2 secon
AnnyKZ [126]

In order to graph the relationship, we will need to write the expression as the equation of a straight line as shown:

d = mt + b

d is the distance covered

t is the time taken

m is the speed

If you are skateboarding at a pace of 30 meters every 5 seconds. your friend is in-line skating at a pace of 9 meters every 2 seconds, this can be written as (5, 30) and (2, 9)

Get the slope of the line:

m = (9-30)/(2-5)

m = -21/-3

m = 7

Substitute m = 7 and the coordinate (2, 9) into the equation y = mt + b

9 = 7(2) + b

9 = 14 + b

b = -5

The required equation to plot will be expressed as y = 7t - 5

Plot the required graph

Learn more here: brainly.com/question/17003809

4 0
3 years ago
The perimeter of a rectangular painting is 304 centimeters. If the length of the painting is 85 centimeters, what is its width?
Brums [2.3K]

Answer:

3.58

Step-by-step explanation:

You have to divide 304 by 85

you will get 3.57647058824

You have to round it to the nearest hundedth which will leave you with 3.57

4 0
2 years ago
Other questions:
  • The radius of a cylindrical construction pipe is 2ft . if the pipe is 23ft long, what is its volume? use the value 3.14 for π ,
    13·1 answer
  • Anybody got the answer to this?
    15·1 answer
  • Calculate the power in kilowats required to lift a 500 kg mass 12 meters in one second
    10·1 answer
  • Order from least to greatest 0.75 , 0.3125 , 3/8 , 9/16
    15·1 answer
  • Mr. miller has $25 in his savings and wants to put $10 every week into the account. write an equation showing how much money he
    9·1 answer
  • Im thinking its c, not sure
    15·1 answer
  • What is 1/2 of 1/3 of 1/5 of 60?
    10·2 answers
  • Factor -2.9 out of 8.7b – 11.6. Using gfc or without
    12·1 answer
  • The formula for the area of a triangle is A = = { bh. Find the area of a triangle with a base (b) of 7 feet and a height (h) of
    15·1 answer
  • ») b. The area of the parallelogram is 65 ft2. What is its height? mm th 13 ft 13​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!