Please help me with this question. what is the area?

Answers

Answer 1

Answer: The formula for that area would be A=1/2xbxh so you would do A=1/2x3.5x3 and that equals 5.25

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Find the mean, median, and mode of the following set.27, 20, 34, 37, 21, 42, 39

A)mean: 31.4; median: 35.5; mode: 37
B)mean: 31.4; median: 34; no mode
C)mean: 36.7; median: 34; no mode
D)mean: 36.7; median: 37; no mode

Answers

Answer:

The answer is B

Step-by-step explanation:

Mean is adding all of them up and dividing.

Median is sorting them all into one line from least to most, then find the middle number. If there is 2, add both, then divide by 2.

Mode Is the number you see the most. There can be more than one mode.

Answer:

Step-by-step explanation:

20, 21, 27, 34, 37, 39, 42

Median: (middle number) 34

Mode: There are no mode in the following data set.

Mean: 20 + 21 + 27 + 34 + 37 + 39 + 42 = 223/7 = 31.8

Factory A can produce 45 machines in 20 minutes. Factory B can produce 30 machines in 15 minutes. If both factories produce machines for 2 hours, wich factory will produce more machines? How many machines will be produced?

Answers

45machines:20mins
20mins=1/3hour
45machines:1/3hour
times 3
135machins=1hour
135machines per hour

B. 30 in 15
15=1/4 hour
30=1/4hour
times 4
120machines per hour

both produce for 2 hours

A. is 135*number of hours, B is 120 times number of hours
135*2+120*2=
270+240=
510

make 510 machines in 2 hours

divide amount a minute by minutes so Factory A= 2.25 Factory B= 2 then multiply those by 2hrs or 120 minutes so

Factory A = 270 and Factory B = 240
factory A produced more machines

Ho do you get the Surface Area of this shape?

Answers

This solid object contains 8 sides.

The side that is facing you has a surface area:

$64f{ t }^( 2 )+84f{ t }^( 2 )=148f{ t }^( 2 )$

The side exactly opposite this one has the same surface area - 2 sides with this surface area in total.

The bottom side has a surface area:

$84f{ t }^( 2 )$

The side to your right has a surface area:

$84f{ t }^( 2 )$

The side to your left has a surface area:

$48f{ t }^( 2 )$

The side to your top left has a surface area:

$48f{ t }^( 2 )$

The side beside the side to the top left has a surface area:

$36f{ t }^( 2 )$

The side at the very top has a surface area:

$36f{ t }^( 2 )$

Combined, the surface area is:

$S=2\cdot 148f{ t }^( 2 )+2\cdot 84f{ t }^( 2 )+2\cdot 48f{ t }^( 2 )+2\cdot 36f{ t }^( 2 )$

$\n \n =296f{ t }^( 2 )+168f{ t }^( 2 )+96f{ t }^( 2 )+72f{ t }^( 2 )\n \n =632f{ t }^( 2 )$

Therefore the answer is: C

You visit two websites about inventions of the 21st century. One has .edu in the URL address and the other has .com. Which site is more likely to be credible and why? (6 points) The .edu site is more likely to be credible because all .com sites are trying to sell you something. The .edu site is more likely to be credible because its domain is a university or other school type. The .com site is more likely to be credible because all .edu sites are personal college student blogs. The .com site is more likely to be credible because its owners review all the content before publishing.

Answers

The .edu site is more likely to be credible because its domain is a university or other school type

The .edu site will more likely be better

Fei yen's dog eats 8 ounces of dog food each day. Fei yen bought a 28 pound bag of dog food. how many 8 ounces servings are in a 28 pound bag of dog food.