The formula for the area of a trapezoid is A = 12(a + b)h. Rearrange the formula to solve for b.

Question 4 options:

b=2Aha

b=A−12h + a

b=2Ah− a

b=12Ah − a

Answers

Answer 1

Answer:

b = 2A/h - a

Step-by-step explanation:

Formula for the area of a trapezoid:

A = 1/2(a + b)h

Solving for b:

A = 1/2(a + b)h2A = (a + b)h2A/h = a + b b = 2A/h - a

Related Questions

Rebeckah answered 42 of 60 questions on the test. Which method should she use to find the percent of questions answered correctly

Answers

If ur question is basically “what is the 42% of 60” then the answer is 25.2 :)

Could you help me with this?

Answers

1st is B 2nd one is A

Eli is following this recipe to bake bread rolls. He uses 600ml of water. How much of the others ingredients does he use? 600g flour 9g salt 12g yeast 30ml oil 500ml water

Answers

Answer:

720 grams of flour.

10.8 grams of salt.

14.4 grams of yeast

36 ml of oil.

Step-by-step explanation:

The recipe is:

600g flour

9g salt

12g yeast

30ml oil

500ml water

Now we use 600ml of water.

We can take the quotient between the amount of water we use and the amount of water in the recipe, this is:

600ml/500ml = 1.2

Then the ratio between the quantities we need to use and the quantities un the recipe should be always 1.2

Or the quantities that Eli needs to use will be 1.2 times the ones shown in the recipe.

Then she needs to use:

1.2*600g flour = 720 grams of flour.

1.2*9g salt = 10.8 grams of salt.

1.2*12g yeast = 14.4 grams of yeast

1.2*30ml oil = 36 ml of oil.

Maggie is trying to find the best deal to buy bags of potato chips. Option A: $0.90 for 9 bags of chips Option B: $0.84 for 7 bags of chips Option C: $1.50 for 5 bags of chips Which option is the better deal?
A
Option A
B
Option B
C
Option C

Answers

Answer:

The answer is option A. Since you would be paying 0.10 for each bag.

The solution is Option A.

The best deal for Maggie to buy the bag of potato chips would be 9 bags for $ 0.90 because each bag cost $ 0.10

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the cost of each bag be represented as A

Now , the equation will be

a)

$0.90 for 9 bags of chips

The cost of 9 bags = $ 0.90

The cost of 1 bag A = The cost of 9 bags / 9

Substituting the values in the equation , we get

The cost of 1 bag A = 0.90 / 9

On simplifying the equation , we get

The cost of 1 bag A = $ 0.10

b)

$0.84 for 7 bags of chips

The cost of 7 bags = $ 0.84

The cost of 1 bag A = The cost of 7 bags / 7

Substituting the values in the equation , we get

The cost of 1 bag A = 0.84 / 7

On simplifying the equation , we get

The cost of 1 bag A = $ 0.12

c)

$1.50 for 5 bags of chips

The cost of 5 bags = $ 1.50

The cost of 1 bag A = The cost of 5 bags / 5

Substituting the values in the equation , we get

The cost of 1 bag A = 1.50 / 5

On simplifying the equation , we get

The cost of 1 bag A = $ 0.30

Therefore , the 0.10 < 0.12 < 0.30

Hence , the cost of $0.90 for 9 bags of chips is the best deal

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Find the missing side length to the nearest tenth of a millimeter.

Please help I'm so confused

Answers

U gotta use pythagorean theory
So a^2 +b^2 = c^2
C=7 since its the one facing the right angle
5.2^2 + b^2 = c2
27.04 +b^2= 49
Subtract 21.96 from both sides, so ur left with 21.96=b^2
Under the square root and rounded up would equal 4.7
Hope this helps

A rectangular dining room has an area of 20 square meters. It's perimeter is 18 meters. What are the dimensions of the dining room?

Answers

Answer:

The dimensions are:

Length = 5m and Width = 4m

Or

Length = 4m and Width = 5m

Step-by-step explanation:

A rectangular dining room has an area of 20 square meters. It's perimeter is 18 meters. What are the dimensions of the dining room?

Area of a rectangle = Length × Width

= LW = 20 m²

Perimeter of a rectangle =

2L + 2W = 18 m

Hence:

LW = 20...... Equation 1

L = 20/W

2L + 2W = 18 ...... Equation 2

We substitute

20/W for L in Equation 2

2(20/W) + 2W = 18

40/W + 2W = 18

Multiply through by W

40 + 2W² = 18W

2W² - 18W + 40 = 0

2W² - 10W - 8W + 40 = 0

(2W - 8 )(W - 5) = 0

2W - 8 = 0

2W = 8 , W = 8/2 = 4m

W - 5 = 0

W = 5m

W = 4m or 5 m

Solving for L

When W = 5 m

L = 20/W

L = 20/5

L = 4m

When W = 4m

L = 20/W

L = 20/4

L = 5m

Therefore, the dimensions are:

Length = 5m and Width = 4m

Or

Length = 4m and Width = 5m

Find the value of the expression x(2x+y) when x= 2 and y =5

Answers

Answer:18

Step-by-step explanation:

Replace

2(2x2+5)

Solve in parentheses

2x2+5

4+5

9

Now multiply 9 by 2

2(9)

18

Answer:

18

Step-by-step explanation:

x(2x + y) =

2(2 ⋅ 2 + 5) =

2(4 + 5) =

2(9) =

18

hope this helps :)

Please help with this problem from algebra II, I will give brainliest!!!

Answers

the answer is b , because each equation will have the open ball going to the left and the open ball going to the right.

Simplify each ratio.

1) 40:15

Answers

Answer:

8:3

Step-by-step explanation:

,,,,lol hope it helps i don't know how to explain,,, I guess its just dividing you know like 15÷5= 3 so on

Plzzz help meeeeeee :(

Answers

Answer:

1. yes

2. yes

3.no

4.yes

5.no

6.no

7. never true

8. always true

9. never true

10. always true

11. always true

12. never true

13. 108

14. 80

15. 70

16. 123

17. 38

18. 167

19. 10

20.154

Step-by-step explanation:

6.
3
7
4
8
The area of the figure is 22 sq units.
TRUE
FALSE
arch

Answers

False

Area is 41

Hope this helps!!!

4
please help asap !!

Select the correct answer.
Which set of numbers is arranged in increasing order?
O A.
1
OB.
TT, V10. 3.14.22
3.14, 7, 2, VTO
Oc. 44, V1O. 3.14. 7
OD V10, 42, 3.14, 5

Answers

Answer:

[tex]\textsf{B.} \quad 3.14, \; \pi, \; \dfrac{22}{7}, \;\sqrt{10}[/tex]

Step-by-step explanation:

The given set of numbers (in any order) is:

[tex]\pi, \;\sqrt{10}, \; 3.14, \; \dfrac{22}{7}[/tex]

Convert each number to its decimal equivalent to 4 decimal places:

[tex]\implies \pi=3.1416\;(\sf 4\;d.p.)[/tex]

[tex]\implies \sqrt{10}=3.1623\;(\sf 4\;d.p.)[/tex]

[tex]\implies 3.14 = 3.1400\;(\sf 4\;d.p.)[/tex]

[tex]\implies \dfrac{22}{7}=3.1429\;(\sf 4\;d.p.)[/tex]

Each number has 3 units and 1 tenth.

Comparing the hundredths, all the numbers have 4 hundredths except √10 which has 6 hundredths.  Therefore, √10 is the largest number since 6 > 4.

Comparing the thousandths of the other three numbers, 3.14 is the smallest number as it has zero thousandths.

π is the next smallest as it has a one thousandth.

Therefore, the given set of numbers in increasing order is:

[tex]3.14, \; \pi, \; \dfrac{22}{7}, \;\sqrt{10}[/tex]

I'm confused, please help. :/

Answers

uh i did this wrong so uh just ignore what i said

Answer:

82°

Step-by-step explanation:

Angle C and B equal the measure of angle A so,

143 - 61 = 82

Angle B is 82°

KIA buys a shirt that cost $12.50 and some pairs of socks that are $2.50 each. She pays a total of $27.50. How many pairs of socks did kia buy?

Answers

27.50-12.50=15
15/2.5=6
Six pairs

F(x)= x+4
How do you do this step by step?

Answers

Answer:

you find the x and y intersepts and draw the line

Step-by-step explanation:

if we break down the equasion in the end it's y=x+4 and from there we can find the intersepts by canceling out, y=x+4 becomes y=4 and 0=x+4 wich is x=-4

3 relaciones entre dos conjuntos de variables que no puedan ser concidera das funciones​

Answers

Step-by-step explanation:

el agua con el fuego debido a que no son los mismos funciona

Answer plsssssssss fastttt

Answers

It’s C ... I believe
the answer is B

3x6=18
5x6=20
7x6=42
9x6=54

Help please :>
Convert 108 km/hr into m/s ​

Answers

Answer:

hello :) the answer is 30 m/s

Answer:

30m/s

Step-by-step explanation:

Convert km to m:

108 —> 108000

Convert hr to s

1 —> 3600

Now put them back into their place in the fraction: 108000/3600

Simply the fraction: 30m/s

Put in ascending order 0.32, -1.9, square root, 2 pi, 2/3

Answers

Answer:

Chicken

Step-by-step explanation:

When the chicken gets rolled in the batter. it gets fried after.

I don't know how to explain it but please help!

Answers

Answer:

required answer. is 1/x³

3. Identify the function rule from the values in the table
Input Output

output equals input times 4
output equals input minus 6
output equals input plus 10
output equals input plus 6

Answers

Answer:

Output equals imput minus 6

Step-by-step explanation:

First, we know that -2 is 1 of the Imputs.

Then we know 8 is the second Output

8 - (-2) so that means it would be minus 6 Imput.

Hope this helps! Mark as Brainllest if this has helped you!

Output equals input times 4 is the function rule from the values in the table.

Looking at the values in the table, we can identify the function rule by analyzing the relationship between the input and output values.

The output values are obtained by applying specific operations to the input values.

Let's examine each statement and see which one matches the given input-output pairs:

Output equals input times -4:

When we multiply the input values by -4, we get the following output values:

[tex]-2 \times -4 = 8[/tex]

[tex]0 \times -4 = 0[/tex]

[tex]1 \times -4 = -4[/tex]

[tex]3 \times -4 = -12[/tex]

This function rule matches the given input-output pairs.

Therefore, the function rule that matches the values in the table is "Output equals input times -4."

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A rectangle has one side that measures 3x + 1 and another that measures 4y + 3. Keith says that the perimeter of the rectangle is 3x + 4y + 4. What is Keith's mistake and what is the correct perimeter of the rectangle?

Answers

Answer:

he added the dimensions of the rectangle. He used the wrong formula. the formula he used was length + breadth. He should have multiplied by 2

6x + 8y +8

Step-by-step explanation:

Perimeter of a rectangle = 2 x (L + B)

L = length

b = breadth

2 (3x + 4y + 4. ) = 6x + 8y +8

The price of a car was decreased by 9% to £14000. What was the price before the decrease? Give your answer to the nearest penny.

Answers

Answer:

152600

Step-by-step explanation:

this is because 9% of 140000 is 1523

How many squares would have to be shaded so that 2/9 of the shape is shaded?​

Answers

Answer:

4.

Step-by-step explanation:

There are 18 squares, if you want to shade 2/9 you have to make the denominator, which is 9 into 18, so you multiply by 2, you will do the same thing to the numerator, 2x2=4 9x2=18.

Brainiest would be appreciated.

There are 4 squares that would have to be shaded so that 2/9 of the shape is shaded.

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

We have to determine the number of squares that would have to be shaded so that 2/9 of the shape is shaded

According to the given figure,

There are 3 rows and 6 columns of squares

So the number of squares would be 3 × 6 = 18

There are 18 squares, therefore if you want to shade 2/9, you must first divide the denominator, which is 9 into 18, by 2, and then multiply by 2.

If 2/9 of the shape is shaded: 18 × 2/9 ⇒ 36/9 = 4

Hence, there are 4 squares that would have to be shaded so that 2/9 of the shape is shaded.

Learn more about Arithmetic operations here:

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In AQRS, q = 6.8 inches, r = 1.9 inches and ZS=141°. Find the length of s, to the
nearest 10th of an inch.

Answers

Answer:

c

Step-by-step explanation:

Function g can be thought of as a translation (shifted) version of f(x)=x^2

What is the equation for g (x).?? PLEASE HELP ASAP

Answers

Answer:

(x+5)²

Step-by-step explanation:

To solve this we just need to shift the graph 5 spots to the left

to do this we need to add 5 to the x

(x+5)²

e
ath!
0 of 8
3. Mark-up, Discount,
Change Assignment
POINTS
TODAY
POINTS
THIS WEEK
GAME
CREDITS
$ $
$
First try was incorrect
Belvedere goes to the store and buys a soccer ball for $50. The store
is running a discount of 10%. What is the price of the soccer ball after
the discount?

Answers

Answer:

$45 after the discount

Step-by-step explanation:

Set up a proportion.

     [tex]\frac{x}{50} = \frac{10}{100}[/tex]      $50 is the total amount and make the 10% a decimal

x(100) = 50(10)

100 = 500

100 ÷ 500

x = 5     <-- We have to subtract this amount from the total

$50 - $5 = $45 <-- total after the discount

Hope this helps!!

I agree with the person on top have a nice day :)

A(2, 4)
-------> A' ( 14, 28)

Answers

what do we have to do?

Answer:

Move 12 units to the right and 24 units up to complete the conversion from point A to point  A'

I need help. I have no idea how to do this!

Answers

Answer:

A ≈ 5.1 units²

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = [tex]\frac{1}{2}[/tex] × 2 sides × sin (angle between them ) , then

A = 0.5 × 7 × 3 × sin29° ≈ 5.1 units²

Solve the system using substitution.
Y-2x=3
3x – 2y=5
A.(-1/2,2)
B. (2,7)
C. (-8,-13)
D. (-11,-19)

Answers

D (-11,-19)

I solved using elimination sorry
P.S. Answer is still correct
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