Mathematics High School

The formula for the area of a trapezoid is A = ½h(b₁ + b₂), where h is the height
and b₁ and b2 are the two bases. Rewrite the formula to solve for h in terms of A, b₁
and b₂.

Answers

Answer 1

Step-by-step explanation:

that means that we need to transform the equation so that we get a form

h = ...

A = ½h(b1 + b2) | multiply both sides by 2

2A = h(b1 + b2) | divide both sides by (b1 + b2)

2A/(b1 + b2) = h

that's it.

Related Questions

3)
The first number minus the second number
is always eight

Answers

Answer:

Well, I mean, that's a vague question. there are a ton of numbers where you can subtract a second number and have it equal eight. 15 - 7 = 8

Step-by-step explanation:

Hey I'm taking a math exam tomorrow please send words of encouragement please answer.

Answers

Answer:

did you study????? well if u did then why u scareddd shortteee.

I AM IN GREAT DEED OF HELP RIGHT NOW

Answers

Answer:

$4.16

Step-by-step explanation:

8% of $52 is 4.16.

In total the item would cost $56.16.

All you do is 52 x .08 = 4.16

Make sure to divide the percentage (8/100=.08) before multiplying.

Someone pls help im new :( tysm if u do:))

Answers

The answer to question 1/3 (-10)(9) is -30.

If this is incorrect, please, don't refrain to tell me. Thank you.

HLEP PLEASE PUT THEM IN THE CORRECT ORDER TRUE OR FALSE

Answers

Answer:

1. False

2. True

3. True

Step-by-step explanation:

HELP ASAPPP PLEASE AND IF U DO NOT KNOW THE ANSWER DONT ANSWER
———————-
A. small
B. medium
C. large
D. x-large

Answers

Answer:

he should bring more medium size

Step-by-step explanation:

please brainliest I was the first answer

41,42,43,44,45,45,45,45
what number is the median?
what number is the mode?

Answers

Answer: Median: 44.5 Mode: 45

Step-by-step explanation: Median is the middle number. Since it's an even set, you add the two middle numbers and divide by two. The mode is just the number that appears the most.

HELP BRAINLEST GUARANTEED

Answers

Answer:

6% , 800$

Step-by-step explanation:

to answer the question we can use this proportion :

x : 100 = 30 : 500

x = (100*30)/500

x = 6%

for calculate the amount after 10 years we can use this formula

A = P(1+rt)

where P indicates the initial amount, r the rate (in decimal) and t the time of investment

A = 500(1 + 0,06 x 10) = 500(1 + 0,6) = 500(1,6) = 800 $

Help me please I need this by 5:00 help me please

Answers

Answer:try doing the method

Step-by-step explanation:

A= Base Side

B= Base Side

C=Base Side

H=Height

HOPE THAT HELPS!

Question:
A group of health researchers survey a SRS of 300 teenagers, of whom 120 have low weekly outdoor activity levels and 180 have high weekly outdoor activity levels. Suppose that 35 percent of teenagers with low outdoor activity levels have allergies, and that 41 percent of teenagers with high outdoor activity levels have allergies. The researchers want to see the difference between the sample proportions. What will be the shape of the sampling distribution be and why?

Choices:
A. Approximately normal, because we expect 105 successes and 195 failures from teenagers with low levels, and 123 and 177 from teenagers with high levels, and all of these counts are at least 10.
B. Approximately normal, because we expect 42 successes and 78 failures from teenagers with low levels, and 73.8 and 106.2 from teenagers with high levels, and all of these counts are at least 10.
C. Not normal, because we expect fewer than 10 failures in both samples.
D. Not normal, because we expect fewer than 10 successes in both samples.

Answers

Answer:

B

Step-by-step explanation:

if f(x) = -4(9/8)x, then what is the sum of its y-intercept and its value where x=1?

Answers

Answer:

when X=1 y = -9/2

Step-by-step explanation:

[tex] - 4 < \frac{9}{8} > {}^{1} = - 4 < \frac{9}{8} > = - \frac{ 36}{8} = - \frac{9}{2} [/tex]


I need help please !

Answers

Answer:

Step-by-step explanation:

Remark

The lone dot on the graph that is between 8 and 9 thousand meters is Mount Everest. I think a good estimate is 8200 meters. Remember, this is just an estimate. You don't have to get it exactly right.

Question

How close is your estimate? When you look it up, Mt. Everest is given as 8849 meters, but don't use that number. They are looking for a number that is under 8500. Estimates are just that -- estimates.

Can anyone help me on this?

Answers

Answer:

[tex]x = 1, -5[/tex]

Step-by-step explanation:

[tex]f(x) = x^2 +4x - 5[/tex]

Factor the expression. Factoring is the process of writing out an expression by using other expressions such that when the other expression are multiplied together, the resulting expression is the initial expression.

[tex]f(x)=x^2+4x-5[/tex]

[tex]f(x)=(x+5)(x-1)[/tex]

Now set the expression equal to zero to find the roots (also known are zeros) of the expression. Use the zero product property to find the answers, the zero product property states that any number times zero is zero.

[tex]0=(x+5)(x-1)\\[/tex]

[tex]x=-5,x=1[/tex]

A certain building has a triangular shaped face to link up of the sides of the triangular base or 145 feet 257 feet in 290 feet five find the area of the base of the building

Answers

Answer:

18617.66 ft^2

Step-by-step explanation:

sides of triangular base

a=  145ft  ,

b = 257ft ,

c =  290ft

calculate the area of the base  

The base is a scalene triangle hence the area is calculated as follows

s = ( a + b + c ) / 2

  = ( 145 + 257 + 290 ) / 2 = 346

Area of triangle = [tex]\sqrt{s(s-a)(s-b)(s-c)} = \sqrt{346(201)(89)(56)}[/tex]

                          = 18617.66 ft^2

No links!!! Math help. Urgent

Answers

c. Since ST is a diameter, the angles that make it up sum to 180. So SRV + TRV = 180. So TRV = 180 - 53 = 127

i need help so.. help me please? :)

Answers

Answer:

29.7079632679

Step-by-step explanation:

(31.415926535898/2)+8+6

Equipment with a cost of $634800 has an estimated salvage value of $30000 and an estimated life of 4 years or 14400 hours. It is to be depreciated by the straight-line method. What is the amount of depreciation for the first full year, during which the equipment was used for 3600 hours?

Answers

Answer:

$151,200

Step-by-step explanation:

According to the problem, calculation of the given data are as follows,

Cost of Equipment = $634,800

Salvage Value = $30,000

Estimated Life = 4 years

So, we can calculate depreciation for first year by using following formula,

Amount of depreciation = Depreciable base amount ÷ Estimated Life

Where, Depreciable base amount = Cost of Equipment - Salvage Value

= $634,800 - $30,000 = $604,800

By putting the value, we get

Amount of depreciation = $604,800 ÷ 4

= $151,200

please help me this is geometry and i am so clueless!!!!!

Answers

Answer/Step-by-step explanation:

Problem 1:

E is the centroid of the triangle.

Centroid theorem states that the centroid is ⅔ of the distance of each vertex to the midpoint of the side opposite each vertex.

This implies that:

AE = ⅔(AD)

AE = 21

Therefore:

21 = ⅔(AD)

3*21 = 2(AD)

(3*21)/2 = AD

31.5 = AD

AD = 31.5

Problem 2: Apply the centroid theorem. Thus:

DE = ⅓(AD)

DE = 12

Therefore,

12 = ⅓(AD)

12*3 = AD

36 = AD

AD = 36

Please help will mark brainliest:)

Answers

It’s .020202 but you can put .02

BUENOS DÍAS PERRAsssssssss

Answers

Answer:

RRRAWRRRRRRRR

Step-by-step explanation:

Goodmorning you, how was your mf morning I geuss

What is the length of leg s of the triangle below? A. 2.2 B. 4 C. 32 D. 4 E. 1.5 F. 16

Answers

Answer:

s = 4

Step-by-step explanation:

Note that the triangle has 2 congruent base angles, both 45°

This means the triangle is isosceles with congruent legs, then

s = 4

Answer:4

Step-by-step explanation:

What is the first step to solve this equation 4m=44
F add 4 to both sides
G subtract 4 from both sides
H divide 4 on both sides
J multiply 4 on both sides

Answers

Answer: H

The first step is dividing 4 from both sides to find what m equals. By the way, its the only step :D

H
hope this helps :)

Help
This is big
Plsss

Answers

Answer:

The answer for this would be:

Sin P = Opp/Hyp

Sin P = 55/73

Answer = 55/73

Please mark my answer as brainliest for further answers :)

△RST shows a city's plan for a new building near the beach that will have free surfboard rentals. Given that the area of △RST is x, complete the equation m∠T = sin–1 mn in terms of the variables x, r, s, and t. (will give 90 points for answer)

Answers

Answer:

yes. we do proportions in probabilities.

Answer from: Quest

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

the number of the people going.

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

Step-by-step explanation:

i hope one of these are right sorry if not

What Gets Wetter The More It Dries?
Write the letter of each answer in the box containing the exercise number
Complete the sentence.
1. If two angles of one triangle are congruent to two angles of another
triangle, then the two triangles are A
Use the diagram.
р н
Answers
K 73°
L. 17°
U. false
T. 62°
A. congruent
2. If mC = 36°, then mZH = 54. True or false?
O
M. right angle
W. similar
3. AEDC - AA
E. 43
4. If mZE = 73°, find m2K.
LEDC
Use the diagram and the glven Information to find the Indicated
measure
0. true
D. 42
A. HGK
B. KGH
C с
E
A
5. MZA = 42°, m.ZD = 95°, mZE = 42°, ZB - ZD;
Find mZACB
6. MZA = MZE = m ZACB = MZECD = 59°; Find m2D.

Answers

Answer:

A “Towel”

Step-by-step explanation:

The length of a rectangle is 6 inches longer than its width. The perimeter of the rectangle is 28 inches. If x represents the
width of the rectangle in inches, which equation can be used to find its value?

Answers

Answer:

2(x + (x+6)) = 28

Step-by-step explanation:

2x+2x+12 = 28

4x + 12 = 28

4x=16

x=4

width = 4

length = 10

Answer:

d. 2(x + 6) + 2x = 28

Step-by-step explanation:

The formula for the circumference of a circle is C = 2(pie symbol)r. Find the circumference of a circle with a diameter of 4 ft. to O A. 12.56 cm OB. 12.56 ft2 O c. 12.56 ft O D. 25.12 cm O E. 25.12 ft​

Answers

Answer:

C) 12.56ft

Step-by-step explanation:

if diameter = 4 ft. then radius = 2 ft ( 1/2 diameter)

2 [tex]\pi[/tex] r = 2 x [tex]\pi[/tex] x 2 = 2 x 3.14 x 2 = 12.56 ft

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!

Answers

Answer:

x = 10, y ≈ 11.2

Step-by-step explanation:

Hi there,

We can find the length x first since we are given the lengths of the other two sides of the bottom right triangle. In order to find the length of x, it is important to know the Pythagorean Theorem and the fact that x is the hypotenuse.

[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]   ← Pythagorean Theorem

To find x:

[tex]6^{2}[/tex] + [tex]8^{2}[/tex] = [tex]c^{2}[/tex]

100 = [tex]c^{2}[/tex]

c = 10

Therefore, the value of x is 10.

To find y:

We now know the length of two sides of the upper right triangle. The value of y can be found by using the theorem again.

[tex]a^{2}[/tex] + [tex]10^{2}[/tex] = [tex]15^{2}[/tex]

[tex]a^{2}[/tex]  + 100 = 225

[tex]a^{2}[/tex] = 125

a = [tex]\sqrt{125}[/tex]

a = 11.2 when rounded to the nearest tenth.

Therefore, the value of y is approximately 11.2.

Hope this explanation is useful. Cheers.

What angle is this?

Answers

That is a right angle

Explanation

HELPPPP
What is the value of x in the figure at the right?

Answers

Answer:

B) 24

Step-by-step explanation:

This angle adds to 90 degrees, so to solve for x you need this equation:

(2x) + 42 = 90

Subtract 42 from both sides to get:

2x = 48

Divide 2 from both sides to get:

x = 24

Hope it helps!!!

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