Mathematics High School

2. The picture shows a feeding trough that is shaped like a right prism.

(a) Surface A and B are identical trapezoids. What are the lengths of the bases of the trapezoids? What is the height?
(b) Surfaces A and B will be painted blue. What is the total area that will be painted blue?
(c) The edges of the trapezoids need to be sanded. A piece of sandpaper advertises that it can sand up to 80 cm. Will one piece of sandpaper be enough to sand the edges of one trapezoid? Explain.

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

The sketch shows part of the graph y=ab^x

Answers

Answer:

a = 3, b = 2

[tex]y = 3\cdot 2^x[/tex]

Step-by-step explanation:

[tex]y = ab^x\\3 = ab^0\\12 = ab^2\\~\\3=ab^0=a\cdot 1 = a\\a = 3\\~\\12 = ab^2 = 3b^2\\4 = b^2\\b = 2 \vee b = -2[/tex]

but we know from the graph being defined and positive, that b cannot be -2

b = 2

The value of a is 3 and value of b is 2.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

The graph is y=abˣ

The points with coordinates (0, 3) and (2, 12) lie on the graph.

We need to find the values of a and b.

The point (0, 3)

3=ab⁰

a=3

Now point (2, 12)

12=ab²

Now plug in a value as 3

12=3b²

Divide both sides by 3

12/3=b²

4=b²

b=2

Hence, the value of a is 3 and value of b is 2.

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Oak Street and Elm Street run parallel to each other. When Main Street
intersects them, it forms interior 24, measuring 35°. What is the measure of
272
Main
Oak
4 (35)
5
6
Elm
O A. 145°
B. 135
C. 35
D. 45°

Answers

the answer is a. 145° because a line will always equal 180° so just subtract 180-35 and you get 145°! hope this helped :)

7.2 puzzle time did you hear about the smog worksheet 8th grade answer key

Answers

Yes I’m working on it right now the answers are on my page go take a look

Answer: I Don't Know

What is the area, in square meters, of the isosceles trapezoid below? 15.8 m 5-4 m 6.6 m Answer: A = ____ m squared

Answers

Answer:

5.618773 m2

I hope that this is the answer.

Answer:

answer is 60.48 m squared

Step-by-step explanation:

use the formula

a=1/2(b1+b2)h

a=1/2(15.8+6.6)h

a=1/2(22.4*5.4)

a=1/2(120.96)

a=120.96/2

a=60.48m

It’s due in 2 minutes

Answers

Answer:

m a t h w a y

Step-by-step explanation:

What is the total surface area of this square pyramid?
204 cm2
384 cm2
72 cm2
240 cm2

Answers

Answer: 384 cm²

Step-by-step explanation:

Took test

Answer:

Answer: 384 cm²

Step-by-step explanation:

SOLVE FOR THE BASE

1. 10% of ________-8
2.28 is 4% of _________
3.25% of ________
4.13% of______
5.15 is 12.5% of _____

Answers

Answer:

1- 10% of -80 is -8.

2- 28 is 4% of 700.

3- 25% of a number is equal to 1/4 or 0.25 of it.

4- 13% of a number is equal to 0.13 of it.

5- 15 is 12.5% of 120.

Step-by-step explanation:

1. 10% of ________- 8

2.28 is 4% of _________

3.25% of ________

4.13% of______

5.15 is 12.5% of _____

To determine the missing numbers in the statements, the following calculations must be performed:

10 = -8

100 = X

100 x -8 / 10 = X

-800 / 10 = X

-80 = X

Therefore, 10% of -80 is -8.

two-

4 = 28

100 = X

100 x 28/4 = X

2800/4 = X

700 = X

Therefore, 28 is 4% of 700.

25% of a number is equal to 1/4 or 0.25 of it.

13% of a number is equal to 0.13 of it.

12.5 = 15

100 = X

100 x 15 / 12.5 = X

1500 / 12.5 = X

120 = X

Therefore, 15 is 12.5% of 120.

The population of Sanibel, Florida can be modeled by P= 6191 . 1.054, where t is the number of years since 2016.
A. What was the population in 2016?
B. What percent did the population increase by each year?

40 points if u answer

Answers

Answer:

A 5873.814042

B 90%

Step-by-step explanation:

What is the speed of a wave that has a wavelength of 2m and frequency of 1.5 Hz?
Doc Below

Answers

Speed =wavelength x frequency
= 2x1.5 = 3m/s

WILLL GIVE BRANLIEST PLSSSSSSSSSSSSSSSSSSSS

Answers

Answer:

100°

Step-by-step explanation:

If my calculations are correct, I suppose the final answer will be 100 degrees.

If you see it, It's clearly mirrored.

How do you find percentages?

Answers

For example if you have a decimal, let’s say 0.225, you multiply it by 100 and that would equal to 22.5. This means that your percent is 22.5%

Step-by-step explanation:

if you have 3/4 you divide the part, 3, by the whole, 4

3 ÷ 4 = 0.75

then multiply 0.75 by 100, 75, then add a percentage sign: 75%

Name the polygon. Then tell whether it is a regular polygon or not a regular polygon.

Answers

The polygons name is an octagon and is not a regular polygon

Don drives his car 25 km east and then 312 km south. How far is he from his starting point? Round to the nearest tenth.

Answers

243000pppppppppppppppp

Item 3 There is a 40% chance that weather causes one or more days of school to be canceled each year. Use the table of simulated values to find the experimental probability that weather will cause a school to be canceled in at least three of the next four school years. Use the digits 1 through 4 as years with a cancellation.

The experimental probability is____%

Answers

Answer:

16%

Step-by-step explanation:

Find the volume of the cone in terms of pi.
405TT cm3
324TT cm3
72TT cm3

Answers

Answer:

324πcm³

Step-by-step explanation:

Volume=⅓πr²h

⅓*π*9²*12

=324πcm³

a rectangular prism has a lenghth of 9 inches a width of 4 inches and a height 1 1/2 inches the prism is filled with cubes that have edge lengths of 1/2 inches how many cubes are needed to fill the rectangular prism please help man

Answers

108 cubes would be needed to fill the prism

LINKS = reported ,, anyways I’ll give brainliest if ur right
Find the volume of this sphere.
Round to the nearest tenth.
7in
Formulas for Spheres
S.A. = 41112
Varr
? 1 in 3

Answers

Answer:

1436.02

Step-by-step explanation:

(1/2a - 1/3b) - (1/3b - 1/2a)

Answers

Answer:

a- 2b/3

Step-by-step explanation:

1) Remove the parentheses and combine like terms

Write the 3.777 as a mixed number

Answers

Maybe it’s uhh uhhh 20 feet yuh

Number 8 please help 10 points no links pleAse

Answers

The answer is A (3). In the question you are given a list of numbers, these are the results from the science project. In the list, the number 12 appears 5 times, therefore 5 dots are added above the number 12 on the dot plot. 11 appears once, 13 appears 3 times, 14 appears 3 times and 15 appears three times. Hope this helps.

hlpppppppppppppppppppppppppppppp

Answers

Answer:

-9.661

Step-by-step explanation:

For this problem you simply substitute the give values into the equation

a=6.05

b=3.611

-6.05+(-3.611)= -9.661

The area of a trapezoid is (1/2)h(b1 + b2). A trapezoid has an area of 50 in2. If the bases are 12 and 8 inches, what is the height?

Answers

Answer:

5 in.

Step-by-step explanation:

Given that

b1 = 12

b2 = 8

A = 50

Formula is (1/2)h(b1 + b2), on substituting

50 = 1/2 * h(12 + 8)

50 = 1/2 * h(20)

100 = 20h

h = 100/20

h = 5

The height is 5 in

an administrative assistant at a software company often provides breakfast when there is a morning meeting. for last weeks sales, she purchased 3 dozen doughnuts and 5 dozen croissants, spending a total of $60. in preparation for yesterday's safety meeting, she spent $65 on 4 dozen doughnuts and 5 dozen croissants. assuming she purchased the items at the same bakery both times, how much does a dozen of each cost?

Answers

Answer:

donuts: $5.00

croissants: $9.00

Step-by-step explanation:

c - croissants

d - donuts

(1) 3d + 5c = 60

(2) 4d + 5c = 65

solve for 5c in equation (1)

5c = 60 -3d

substitute 5c = 60-3d into (2)

4d + (60 - 3d) = 65

d + 60 = 65

d = 5

to find c substitute d = 5 into (1)

3(5) + 5(c) = 60

15 + 5c = 60

5c = 45

c = 9

Find the value of x

Answers

Answer:

[tex]\frac{9\sqrt{2} }{2}[/tex]

Step-by-step explanation:

This particular case is a sine operation.

sin(45°) = [tex]\frac{x}{9}[/tex]

9sin(45°) = x

Plug into a calculator and you get:

x = [tex]\frac{9\sqrt{2} }{2}[/tex]

Can someone please help me with math.

Answers

The answer is B, Graph B is the linear graph

HELP ME GET THIS QUESTION CORRECT EXRA POINTS

Answers

I’m pretty sure it’s C hope this helps :)

Find the measure of angle b

please help:)

Answers

See photo. Hope it helps

Armed gunmen shoot a victim who is 5.9 ft tall, from the roof of a building that is 146 ft away. If the roof of the building was 385 ft high, at what angle to the horizon would the bullet have been fired?

Answers

The bullet has been fired at an angle of 69.5° to the horizon. This is a problem based on the application of trigonometry.

Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles.

Given that

Distance between the building and the man = 146 ft.

Height of the man = 5.9 ft.

Height of the building = 385 ft.

So,

Total height = Height of the man + Height of the building

= 5.9 ft. + 385 ft.

= 390.9 ft.

Let the angle to the horizon would the bullet have been fired be x°.

[tex]tanx^o = \frac{390.9}{146}\\tanx^o = 2.677\\x = tan^{-1}(2.677)\\x = 69.5[/tex]

Thus, the bullet has been at an angle of 69.5°.

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Which set of side lengths create a right triangle ?

Answers

Answer:

9,12,15 i think

Step-by-step explanation:

60 POINTS! RIGHT ANSWERS ONLY PLEASE

Which of the following is a binomial experiment?

Rolling a six-sided number cube and recording the number until a 5 comes up

Rolling a six-sided number cube and recording the number until an odd number comes up

Rolling a six-sided number cube 24 times and recording the number that comes up

Rolling a six-sided number cube 24 times and recording if a 5 comes up

Answers

Answer: Rolling a six-sided number cube 24 times and recording if a 5 comes up

Thank you for being so generous with the points!! <3

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