Mathematics, 27.09.2019 11:30 anonymousanon

Find the total surface area for the solid shown. (20 pts) with explanation ?

Answers: 1

Show answers

Answers

Answer from: noor2005

The surface area is simply the the sum of the areas of each face. We see that this triangular prism has three rectangles each with the same lengths, and two triangles, each with the same lengths.

The dimensions of one such rectangle are 11.2 cm by 25.7 cm. We multiply these two dimensions to get the area: $(11.2 \ cm)(25.7 \ cm)=287.84 \ cm^2$

The dimensions of one such triangle are a base of 11.2 cm and a height of 9.7 cm. We multiply these dimensions together with one half to get: $\frac{1}{2}(11.2 \ cm)(9.7 \ cm)=54.32 \ cm^2$

Remember, we have each rectangle three times, and each triangle twice. We multiply and add up to get the surface area:
$S.A.=3(287.84 \ cm^2)+2(54.32 \ cm^2)=972.16 \ cm^2$

FYI, this answer is identical to the one I gave for your identical question.

Answer from: Quest

step-by-step explanation:

Answer from: Quest

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

step-by-step explanation:

Another question on Mathematics

Mathematics, 21.06.2019 15:30

What is the best reason for jacinta to have a savings account in addition to a checking account

Answers: 1

Answer

Mathematics, 21.06.2019 17:30

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

Answers: 2

Answer

Mathematics, 22.06.2019 01:20

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}

Answers: 2

Answer

Mathematics, 22.06.2019 02:40

Arestaurant manager wanted to get a better understanding of the tips her employees earn, so she decided to record the number of patrons her restaurant receives over the course of a week, as well as how many of those patrons left tips of at least 15%. the data she collected is in the table below. day mon tue wed thu fri sat sun patrons 126 106 103 126 153 165 137 tippers 82 87 93 68 91 83 64 which day of the week has the lowest experimental probability of patrons tipping at least 15%? a. sunday b. saturday c. friday d. thursday