Mathematics Middle School

What is the surface area of the triangular prism?
A triangular prism. The rectangular sides are 20 feet by 3 feet, 20 feet by 4 feet, and 20 feet by 5 feet. The triangular sides have a base of 3 feet and height of 4 feet. [Not drawn to scale]

152 square feet
172 square feet
252 square feet
264 square feet

Answers

Answer 1

Answer:

252

Step-by-step explanation:

I think I may be wrong

Answer 2

The surface area of the triangular prism is: 252 square feet

What is a triangular prism?

A triangular prism is a solid three-dimensional shape with three rectangles and two triangles.

Analysis:

Surface area of triangular prism = area of 3 rectangles + area of two triangles

Surface area = 20 x 4 + 20 x 5 + 20 x 3 + 2 x ( 1/2 x 3 x 4) = 252 square feet

In conclusion, the surface area of the triangular prism is 252 square feet.

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Related Questions

Can someone answer please?

Answers

Answer:Add a clearer picture

Step-by-step explanation:

I can see a bit of the answer and words but I would go for the 2 answer I feel like it’s the best one.

Select all expressions that are equivalent to 5n-30

n+n+n+n+n−30

5n + (-30)

5n-30n

(n-6) x 5

5 (n-30)

Answers

Answer: everything EXCEPT 5(n-30)

Step-by-step explanation:

Given the function r(x)= v5x -3.5, find the value.

For what value of x is r(x)= -21?

Answers

Answer:

x = -3.5

I don't think v is in the equation, correct me if I'm wrong though.

Step-by-step explanation:

r(x) = 5x - 3.5

r(x) = -21

Substitute:

-21 = 5x - 3.5

Add 3.5 on both sides to isolate the variable

-17.5 = 5x

Divide 5 on both sides

x = -3.5

Answer:
X=-3.5
I don't think v is in the equation, correct me
if I'm wrong though.
Step-by-step explanation:
r(x) = 5x - 3.5
r(x)=-21
Substitute:
-21 = 5x - 3.5
Add 3.5 on both sides to isolate the variable
-17.5 = 5x
Divide 5 on both sides
X=-3.5

What is 235/625 in simplest form

Answers

Answer:

47/125

Step-by-step explanation:

plz answer these 2 i really need help I'm not all that smart
Find the volume of each pyramid. Round to the nearest tenth if necessary.

triangular pyramid: triangle base, 6.1 cm; triangle height, 6.7 cm; pyramid height, 10.4 cm
a
141.7 cm3
b
212.5 cm3
c
53.1 cm3
d
70.8 cm3

Answers

Answer: 141.7 cm3

Explanation: you multiple 6.1, 6.7, 10.4 then divide by 3 which equals 141.68. Round it and we’re left with 141.7 cm3.

It’s 141.7 cm3
Have a good day

Please help guys! I haven't gotten a real response and need this soon!! Tysm <3

Ryan has some bananas. The amount of bananas she has two more than twice the amount of apples she has. If she has 29 bananas and apples total, how many of each does she have?

Answers

Step-by-step explanation:

That means she has 84 apples

A manufacturer gets a shipment of 580 batteries of which 27 are defective. The store manager wants to be able to test random samples in future shipments. She tests a random sample of 20 batteries in this shipment to see whether a sample of that size produces a reasonable inference about the entire shipment. Fill in the blanks to make this statement true. please help.

Answers

Kate

Step-by-step explanation:

hcl+Na2co3=2Nacl+h2o+co2

I just did the lesson i think

x-2y=3, x^2-2y=3, x^2-2xy+4y^2=11, find the value of x^2y-2xy^2

Answers

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Honestly i doent even know

....................

Answers

Answer:

Step-by-step explanation:

could you please translate it for me , i’ll be more than sure to help you!

Find each probability.

Answers

Answer:

5,9

Step-by-step explanation:

I think row A would be 5 and B would be 9 im sorry if im wrong

It’s just 5 and 9–

5 on top 9 on bottom

graph WILL BE MARKED BRAINLIEST!!!!!!!!
What is the equation of the line?
i cant upload a file so im going to give the best description i can.

A vertical line going through x (3,0)

Answers

Answer:

he second line's equation was y = –2x + 3, and the line's slope was m = –2

THAT ALL I UNDERSTAND

Step-by-step explanation:

A simulation of a person throwing a dart at a dartboard is run 140 times, and the player hits the dartboard 105 times. Using the results of the simulation, what is the experimental probability that the player does not hit the dartboard? Express your answer as a decimal.

Can someone please help me i am so confused.

Answers

Answer:

0.25

Step-by-step explanation:

If the person made it 105 out of 140 times, that can be written as a fraction: 105/140

Then, you just turn the fraction into a decimal by dividing the numerator by the denominator.

105 divided by 140 = 0.75

0.75 is the probability that it does hit the board, so we can subtract 0.1-0.75 to give us the probability that is doesn't hit the board. This would give us 0.25

Hope this helps

The experimental probability that the player does not hit the dartboard is,

⇒ 1 / 14

What is mean by Probability?

The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

Given that;

A simulation of a person throwing a dart at a dartboard is run 140 times, and the player hits the dartboard 105 times.

Hence, Number of not hit dartboard is,

⇒ 140 - 105

⇒ 35

Thus, The experimental probability that the player does not hit the dartboard is,

⇒ 35 / 140

⇒ 7 / 28

⇒ 1 / 14

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Which estimation technique will yield a solution that is closest to the actual product of (–21.06)(–30.45)?
front-end estimation
rounding to the nearest tenth
rounding to the nearest whole number
compatible numbers

Answers

Answer:

The answer is C. Rounding to the nearest whole number.

Step-by-step explanation:

Please mark me brainliest

Answer:

C. Rounding to the nearest whole number.

Step-by-step explanation:

Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

.
Rita is making a salad using small tomatoes and olives in a ratio of 5:3. A ratio table with this information is shown.

Use the ratio table to create a graph of the relationship. Be sure to fully label your graph.

Number of Tomatoes Number of Olives
5 , 15 , 25 3 , 9 , 15

Answers

Answer:

I can't make an exact graph but the ratios are this:

Step-by-step explanation:

5:3, 15:9, 25:15

hope it helps you a little bit

The ratios are 5:3
15:9
25:15
I hope this is right

Leonardo has $2.35 in his piggy bank. His grandma gives him twice as much money. How much money does Leonardo have in total?

$2.35
$4.70
$7.05
$9.10

Answers

Answer:

$7.05

Step-by-step explanation:

1. Since his grandmother gave him twice the money he had, multiply $2.35 by 2 to get $4.70.

2. Now, add his original money and the money given by his grandmother, $2.35 + $4.70, to get $7.05.

The answer is C Because if you have $2.35 and you double it or multiply it by 2 you’ll get $7.05.

Use the box-and-whisker plots to find the interquartile range for both class B and class A?
1. Class A:9 Class B: 14
2. Class A:4 Class B:7
3. Class A:15 Class B:11
4. Class A:5 Class B:7

Answers

Answer:

class a- 10

class b- 15

Step-by-step explanation:

Class a - 10
Class b - 15

Kenney High School’s swimming pool is 25 yards long. The pool has 8 lanes, each of
which is 3 yards wide. The pool is filled to a depth of 6 feet.
a. What are the length and width of the pool in terms of feet? (4 points)
Length: __________ ft.
Width: __________ ft.
b. How many cubic feet of water are in the pool? (3 points)
Volume: __________ ft3
c. If one cubic foot contains about 7.5 gallons, how many gallons of water are in
the pool? (3 points)
Water: __________ gallons

Answers

Answer:

a. Length = 25 yds. × 3 ft./yd. = 75 ft.

Width = 8 × 3 yds. × 3 ft./yd. = 72 ft.

b. Volume = 75 ft. × 72 ft. × 6 ft.

= 32,400 ft.^3

c. (32,400 ft.^3)(7.5 gal./ft.^3)

= 243,000 gal.

5u-8v+9(2u-3v)-4(2v-5u)

Answers

Answer:

The answer is 43u – 33v

Step-by-step explanation:

5u – 8v + 9(2u – 3v) -4(2v – 5u)

5u – 8v + 18u – 27v – 8v + 20u

5u + 18u + 20u – 8v – 27v – 8v

43u – 33v

Thus, The answer is 43u – 33v

-TheUnknownScientist 72

Answer:

43u

Step-by-step explanation:

Distribute

5u-8v+9(2u-3v)-4(2v-5u)

5u-8v+18u-27v-4(2v-5u)

Rearrange terms

5u-8v+18u-27v-42v-5u)

5u-8v+18u-27v-4(-5u+2v)

Distribute

5u-8v+18u-27v-4(-5u+2v)

5u-8v+18u-27v+20u-8v

Combine like terms

5u-8v+18u-27v+20u-8v

43u-8v-27v-8v

Combine like terms

43u-8v-27v-8v

43u-43u

Please help with this question please.

Answers

M < 7 is the answer because if m was equal to seven the equation would be 19 > 19 which cannot be correct so m must be less than 7

Option d. m>7 is the correct answer.

Given,

2m+5>19

or, 2m+5+(-5)>19+(-5) [adding both side with a negative number doesn't

change the inequality sign]

or, 2m>14

or, (2m/2)>(14/2) [also dividing both sides by a non-negative number doesn't change the inequality sign]

or, m>7.

Hence, m>7 is the correct answer to the given question.

Learn more about inequality problems,

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look at the pic below

Answers

Answer: Read Below Please

Step-by-step explanation:

Split up 3 and 1/5 first.

3$\frac{1}{5}$x$\frac{2}{3}$=3x$\frac{2}{3}$+$\frac{1}{5}$x$\frac{2}{3}$

You solve that and you get:

$\frac{6}{3}$+$\frac{2}{15}$

6/3 is 2 then you add 2 + 2/15
The answer at the end would be 2$\frac{2}{15}$.

Answer:

I tried myself and found it hard the teacher who gave you that I would ask for help on the questions your stuck on

Step-by-step explanation:

Which points are 3.5 units apart?
(7.5, 1.2) and (7.5, –2.3)
(7.5, –3.5) and (7.5, 3.5)
(7.5, 1.2) and (7.5, 2.3)
(7.5, –3.5) and (7.5, 7)

Answers

Well this one is between A or D but leading more towards A

I believe the answer is A

please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!

Answers

The function for the points are y = -15x - 5

How to determine the function

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

m is the slope of the liney - y₁ and (x - x₁) are the points

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is $a=-15b-5$

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

$a-$$a_{1}$$=x[b-b_{1}]$

Where we will consider (1/3,0) = $a-a_{1}$ and (0,-5) = $b-b_{1}$

that is 1/3 = $a$, 0 = $a_{1}$ and

0 = $b$, -5 = $b_{1}$

$x$ refers to the slope of line (take any variable)

Now for finding the value of $x$,

$x=a-a_{1}/b-b_{1}$

inserting the values,

$x=[0-[-5]]/[0-1/3]\\x= -15$

Substitute the value of $x$ in the equation

$a-0=-15[b-1/3]$

By simplifying the equation, we get

$a=-15b-5$

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Michael deposits $2650 into an account. The interest rate on the account is 6% compounded annually. What is the balance in Michael's account after 2 years? After 3 years?

Answers

Answer:

1 year would be 2809

Step-by-step explanation:

Answer:im late but 1 year would be 2809

Step-by-step explanation:

Determine whether the qualities in the table represent a proportional relationship. If yes, give the constant rate. If no, write none.

Answers

Answer: hdjxhk

Step-by-step explanation:

it isn’t a proportional relationship

y=x + 5
What is the y-intercept?

Answers

I haven't worked with intercepts in a while and I'm in class so I can't be looking back in my notebook. Sorry.

The y intercept is (0,5)

The table shows the average depths of several lakes.

a. Identify the outlier in the data set.

b. Determine how the outlier affects the mean, median, mode, and range of the data.

c. Tell which measure of center best describes the data with and without the outlier.

Answers

a. The outlier in the data set is Crater lake with a depth of 1,148 feet.

b. The outlier has a significant effect on the mean and range of the data but no effect on the median and mode.

c. The median and mode are measures of center that are less influenced by outliers, so they best describe the data with or without the outlier.

What does outlier means in Statistics?

An outlier is a single data point that deviates significantly from the average value of a set of statistics. Outliers are exceptions that exist outside of individual population samples.

How does outlier affects the mean, median, mode, and range of the data?

The mean is heavily influenced by outliers, so the outlier in this case increases the mean depth of the lakes. The range is the difference between the highest and lowest values, so the outlier also increases the range.

Which measure of center best describes the data with and without the outlier?

Without the outlier, the median depth is 33.5 feet, which is closer to the majority of the depths in the data set. Therefore, the median is the best measure of center for this data set without the outlier. With the outlier included, the median depth is still 43 feet, and the mode is also 43 feet, so either measure could be used to describe the center of the data set.

Answers

Answer:

The answer would be C. 74 Hours

Answer:

the anwser is c 74 hours

Step-by-step explanation:

HELP 6TH GRADE MATH
The vertices of a rectangle are at points (−5, 3), (3, 3), (3, −4), and (−5, −4).

a) What is the length, in units, of the rectangle?
b) What is the width, in units, of the rectangle?

Answers

A - The length of the rectangle is 8 units
B - The width if the rectangle is 7 units

A:8 B:7 I hope this helped

(−3x^2+5x-2)-2(x^2 — 2x − 1) In the expression above is rewritten in form ax^2+ bx +c, where a, b, and c are constants, what is the value of b?

Answers

Answer:

value of (b) will be: 9

Step-by-step explanation:

Answer:

b = 9

Step-by-step explanation:

(-3x² + 5x - 2) - 2(x² - 2x - 1) =

= -3x² + 5x - 2 - 2x² + 4x + 2

= -5x² + 9x

= ax² + bx + c

a = -5; b = 9; c = 0

Answer: b = 9

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