Mathematics High School

PLEASE HELP ME :(
If A=1/2 h (b1 +b2) is the formula for the area of a trapezoid, find the height of the trapezoid that has an area of 78 in ^2 and base lengths 5 in and 8 in.

Answers

Answer 1

Answer:

A. 12in

Step-by-step explanation:

Given parameters:

Area of trapezoid = 78in²

Base lengths = 5in and 8in

Unknown:

Height of the trapezoid = ?

Solution:

A = [tex]\frac{1}{2}[/tex] (b₁ + b₂)h

b₁ and b₂ are 5in and 8in respectively.

Input the parameters and solve for h;

78 = [tex]\frac{1}{2}[/tex] (5 + 8)h

Multiply both sides by 2;

156 = 13h

h = 12in

The height of the trapezoid is 12in

Related Questions

Find the midpoint of the segment with the following endpoints.
(6,3) and (0,9)
help please

Answers

to find the midpoint we take both x values of the ordered pairs, add them together, and divide them by two. then we do the same for the y.

x1 = 6
y1 = 3
x2 = 0
y2 = 9

add the x’s together:

x1 + x2 aka:
6 + 0 = 6
divide 6 by 2 which = 3

that’s our new x.
now we do the y’s.

y1 + y2 aka:
3 + 9 = 12
divide 12 by 2, and we get 6.

that’s our new y.

now we put the x and y together as an ordered pair and the midpoint:

(3,6)

hope this helps! ❤️

Will MARK BRAINLIEST!!!!! What is the domain of the given function?

{x | x = –6, –1, 0, 3}

{y | y = –7, –2, 1, 9}

{x | x = –7, –6, –2, –1, 0, 1, 3, 9}

{y | y = –7, –6, –2, –1, 0, 1, 3, 9}

Answers

Domain is X and range is Y so in your case you just want X since you are looking for domain
(-6,-1,0,3)

–6, –1, 0, 3} is the answer

2x - (3-x) > x+1 solve

Answers

Answer:

x > 2

Step-by-step explanation:

Step 1: Write inequality

2x - (3 - x) > x + 1

Step 2: Solve for x

Distribute negative: 2x - 3 + x > x + 1Combine like terms: 3x - 3 > x + 1Subtract x on both sides: 2x - 3 > 1Add 3 to both sides: 2x > 4Divide both sides by 2: x > 2

Here we see that any value x greater than 2 would work as a solution.

Select the graph of the function f (x) = 1/4 Then find the value of f (x) when x = -6.

ASSPPPP

WILL GIVE Y’ALL BRAINLIEST

Answers

The answer is c
And the answer is 9

The answer is C good luck!!

find the nth terms of the sequence with the following first four terms as shown in the table.

________________________
n 1 2 3 4
________________________
an 5 9 13 17
_______________________

Answers

Answer:

see explanation

Step-by-step explanation:

Both sequences have a common difference between consecutive terms, that is

2 - 1 = 3 - 2 = 4 - 3 = 1

This indicates the sequence is arithmetic with n th term

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 1 and d = 1 , thus

[tex]a_{n}[/tex] = 1 + n - 1 = n

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

Similarly

d = 9 - 5 = 13 - 9 = 17 - 13 = 4 and a₁ = 5 , then

[tex]a_{n}[/tex] = 5 + 4(n - 1) = 5 + 4n - 4 = 4n + 1

Consider the highlighted products the common factor is

Answers

Answer:

Step-by-step explanation:

Find the missing exponent

Answers

-7 is the missing exponent

What is the first step needed to solve (3/4) times -3=-18

Answers

Divide I think I’m not sure

Maya’s grandfather open a savings account for a while she was born. He open the account with $100 and not add or take out money after that. The money in the account grows at a rate of 4% per year. Make a table to show the amount in the account from the time Maya was born until she turn 10.

Answers

Answer:

1140

Step-by-step explanation:

because 4% equals 4 pounds × 10 equals 40% which equals 40 pounds and 100 times 10 equals 1000 plus the extra 100 pounds from the beginning

3. Simplify the expression.
4(2x - 3)
ASAP PLS HELP

Answers

Answer with step-by-step explanation:

(4 x 2x) - (4 x 3) = 8x - 12

Hope this was helpful!

Answer: 8x + -12

Explanation: Let's simplify this problem using the distributive property.

The first thing we want to do is change the minus to plus a negative.

Now we can distribute or multiply this 4 times

each of the terms inside the set of parenthses.

So we get 4(2x) + 4(-3) and this simplifies to 8x + -12.

Note that if you wrote your answer as 8x - 12, it means the same thing.

An architect is designing a rectangular house that is 60 feet long and 40 feet wide. He uses of the area for the 1/4 living room and of the area for the 1/6 kitchen. What area, in square feet, is left over for other parts of the house?

A 1400 ft2
B 1000 ft2
C 140 ft2
D 100 ft2

Answers

Answer:

6o×40=2400

area 1/4=2400÷4=600

area 1/6=600÷6=100

(d)=100 ft2

Plz help me with this ASAP!

Answers

Angel H and G are both are 51 degrees, and angle I is 78 degrees.

The two angles (H and G) are equal to each other, but before we know what the angles are, we must find x.

[tex]5x + 6 = 2x + 33[/tex]

[tex]3x = 27[/tex]

[tex]x = 9[/tex]

Plug in x for one equation:

[tex]5x + 6[/tex]

[tex]5(9) + 6[/tex]

[tex] = 51[/tex]

Therefore,

[tex]m < h = 51 \:[/tex]

and

[tex]m < g = 51[/tex]

And because we know the angles within a triangle = 180, we subtract 102 from 180 to find m<I:

[tex]180 - (51 + 51) = [/tex]

[tex]180 - 102 = [/tex]

[tex] = 78[/tex]

Solve the equation. If the equation is an identity, choose identity. If it has no solution, choose no solution.

- 1/2x+1=7x−14
(the 1/2 is got a - in the middle before it)

Answers

Answer:

x=2

Step-by-step explanation:

- 1/2x+1=7x−14

25. Willa purchases a vase for her kitchen
that is shaped like a cube and will hold 343
cubic inches of water. What are the
dimensions (length, width and height) of the
vase?

Answers

Answer:

7,7, and 7

Step-by-step explanation:

If she vase is cubical we know that all 3 dimensions are the same. This means that x^3 = 343. So we know the answer is the cube root of 343, which is 7

The dimensions of the cubic vase are 7 by 7 by 7.

What is a cube?

A three-dimensional object with six congruent square faces is called a cube. The cube's six square faces all have the same dimensions.

Given that the volume of the cubic vessel is 343 cubic inches.

The formula for the volume of a cube of side length a is:

V =a³

Substitute V= 343:

343 = a³

Or, a = ∛343

a = 7

Hence, the dimensions of the cubic vase are 7 by 7 by 7.

Learn more about cubes:

https://brainly.com/question/29372770

#SPJ2

is the slope of the line with equation y-3=-1/2(x-2)

Answers

Answer:

-1/2 is the slope.

Step-by-step explanation:

y-3 = -1/2(x-2)

y-3 = -1/2x +1

y= -1/2x + 4

m= -1/2

What is the slope of a line perpendicular to the line whose equation is
2x - 5y = -40. Fully reduce your answer.

Answers

the slope is 2/5 and the y intercept is -8

Multiple-choice test with 50 questions has five possible choices for each question. There are 4 marks for each correct answer, -1 mark for each incorrect answer, and 0 marks for each unanswered question. What is the total score of a student with 35 correct answers, 10 incorrect answers and 5 unanswered

Answers

Answer:

Total score of a student = 130 marks

Step-by-step explanation:

Marks for each correct answer = [tex]4[/tex]

Marks for each incorrect answer = [tex]-1[/tex]

Marks for each unanswered question = [tex]0[/tex]

Number of correct answers = 35

Number of incorrect answers = 10

Number of unanswered answers = 5

So,

Total score of a student [tex]=35(4)+10(-1)+5(0)=140-10+0=130[/tex] marks

Answer:

35 correct: 35x4= 140 marks

10 incorrect: 10x -1= -10 marks

5 unanswered: 5x0= 0 marks

140-10+0= 130 marks

Step-by-step explanation:

PLZZ HELP IF RIGHT I LL MART BRAINLYLIST!!!!!

Answers

Answer:

The length of C'D' = 2.8

This is because, ABCD is rotated on the point R 55 degrees

So, now, if you turn back the rotation, you will get, that CD = C'D'

Now, CD = 2.8 , So, C'D' = 2.8

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

by which rule are these triangles congruent ?
A) AAS
B) ASA
C) SAS
D) SSS

Answers

Answer:

triangles congruent rule;

B) ASA

Solve for the letter A

Answers

Answer:

a=bcd

Step-by-step explanation:

Answer:

a=bcd

Step-by-step explanation:

Let's solve for a.

Step 1: Multiply both sides by cd.

a=bcd

Answer:

a=bcd

What is the distance between points (-2,1) and (2,4)?

What is the distance between points (1,2) and (3,4)

Answers

Answer:

✓{2-(-2)2+(4-1)2

✓16+9

✓25

Step-by-step explanation:

using this formula you may find

✓(x2-x1)2+(y2-y1)2

Answer:

(-2,1) and (2,4) = 5

(1,2) and (3,4) = 2.82

Step-by-step explanation:

Triangle angles review (khan academy)

Find the value of x in the triangle shown below

X = ?

Answers

Answer:

The correct answer is 44°

I need help ASAP cause I'm stuck

Answers

Answer:-16r^7

Step-by-step explanation:

Please respond quickly

Answers

It’s x because the rest have more than one line on the input

Answer:

B. X

Step-by-step explanation:

Each X value can only have one Y value.

the area of the rhombus with diagonal 6.2cm and 10cm is _ square cm

Answers

Answer:

31cm².

Step-by-step explanation:

as we know that ,

area of Rhombus equal 1/2 of product of their diagonals .

product of the diagonals equal 6.2*10=62

1/2*62=31cm².

C. Read and analyze the problem, then solve.
1. Mother bought 20 meters of curtain material. She used 8 metres for the living room, 73
meters for the dining room, and the rest for the kitchen. How many meters did she use for the
curtain in the kitchen?

Answers

Given parameters:

Total length of curtains bought = 20m

She used 8m for the living room

She used 7m for the dining room

unknown:

Quantity used for the kitchen = ?

Solution:

Quantity used for the kitchen = Total length - (living room + dining room)

Input the parameters given solve;

Quantity used for the kitchen = 20 - (8 + 7) = 5m

The length of curtain used for the kitchen is 5m

The value of -4^2 is _____.

8
-16
16
-8
And please tell me why

Answers

Answer:

Step-by-step explanation:

A negative times a negative is a positive. -4^2 is equal to -4 times -4. This would give us 16.

pls help it doesn't have the answers

Answers

I don't know why doesn't have answers, but I know the answer 7/20.

Steps for solving 4x - 12 = 20 are shown.
Explain how Step 3 helps solve the equation.
4x - 12 = 20
4x-12 +12 - 20 +12
4x = 32
4x32
4 4
X = 8
Original equation
Step 1
Step 2
Step 3
Step 4
A. Multiplying both sides by 4 undoes the division.
B. Dividing both sides by 4 eliminates the variable.
C. Multiplying both sides by 4 isolates the variable.
D. Dividing both sides by 4 isolates the variable.
SUBMIT

Answers

Well when you have 4x=32 you need to divide to isolate the variable - so I’m not sure why after it says 4x32?

For the given equation, in step 3 it is dividing both sides by 4 to eliminate the variable. Hence, option B is correct.

What is an arithmetic operation?

The four fundamental operations of arithmetic are addition, subtract, multiply, and division of two or more numbers. Included in them is the study of integers, especially the order of operations, which is important for all other aspects of mathematics, notably algebra, information management, and geometry.

The step 3 according to the question is,

4x = 32

Dividing both sides by 4,

x = 32/4

x = 8

Therefore, the final result will be x = 8.

To know more about arithmetic operation:

https://brainly.com/question/13585407

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What is 2^6+670+2345=?

Answers

Answer:

the answer would be 3079

could you also please mark me as brainliest?

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PLEASE HELP ME :( If A=1/2 h (b1 +b2) is the formula for the area of a trapezoid, find the height of the trapezoid that has an area of 78 in ^2 and base lengths 5 in and 8 in.

Answers

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PLEASE HELP ME :(
If A=1/2 h (b1 +b2) is the formula for the area of a trapezoid, find the height of the trapezoid that has an area of 78 in ^2 and base lengths 5 in and 8 in.