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goblinko [34]
4 years ago
7

Which correctly describes a cross section of the cube below? Check all that apply.

Mathematics
1 answer:
N76 [4]4 years ago
8 0

Answer:

Only A is correct

Step-by-step explanation:

A is shown in the image below.

For B, a rectangle does not have its lenght and height having the same dimension.

For C, such a cross section will give a square with sides of 4 cm each.

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A business analyst makes $20 an hour for the first 42 hours he works during a week and $28 an hour for each hour worked over 42
Natasha_Volkova [10]

The piecewise function for this should be f(x) \left \{ {{y = 20x, x < 42} \atop {y = 28x + 840, x > 42}} \right..

We can find the first equation simply. He gets 20 every hour up to 42 hours. Therefore, the function gives us our first equation of y = 20x when x < 42.

The second one, we must know what the base amount he would make before starting to make 28 an hour. The 28 an hour would be 28x, but he would have already made 840 before hand. Which we can determine by multiplying the base of 42 hrs by 20.

42 * 20 = 840.

3 0
3 years ago
Read 2 more answers
(6t4n3) (-2tn 3) - simplify :)
vampirchik [111]

Answer:

=−12n6t5

Step-by-step explanation:

6t4n3((−2t)(n3))

1: First step is to get the whole equation that is 6t4n3((−2t)(n3)) in a short form and simplify it.

2: Your answer will equal as =−12n6t5.

Please mark brainliest

<em><u>Hope this helps.</u></em>

8 0
3 years ago
Out of 100 employees at a company, 92 employees either work part time or work 5 days each week. There are 14 employees who work
Alexus [3.1K]

Answer: 0.02

Step-by-step explanation:

OpenStudy (judygreeneyes):

Hi - If you are working on this kind of problem, you probably know the formula for the probability of a union of two events. Let's call working part time Event A, and let's call working 5 days a week Event B. Let's look at the information we are given. We are told that 14 people work part time, so that is P(A) = 14/100 - 0.14 . We are told that 80 employees work 5 days a week, so P(B) = 80/100 = .80 . We are given the union (there are 92 employees who work either one or the other), which is the union, P(A U B) = 92/100 = .92 .. The question is asking for the probability of someone working both part time and fll time, which is the intersection of events A and B, or P(A and B). If you recall the formula for the probability of the union, it is

P(A U B) = P(A) +P(B) - P(A and B).

The problem has given us each of these pieces except the intersection, so we can solve for it,

If you plug in P(A U B) = 0.92 and P(A) = 0.14, and P(B) = 0.80, you can solve for P(A and B), which will give you the answer.

I hope this helps you.

Credit: https://questioncove.com/updates/5734d282e4b06d54e1496ac8

7 0
3 years ago
Which expression is equivalent to 2 (14x-37+28x+12.2-5y-17.5)?
ziro4ka [17]

Answer:

A. 84x - 16y - 10.6

Explanation:

\sf \rightarrow 2(14x-3y+28x+12.2-5y-17.5)

\sf \rightarrow 2 (42x-8y-5.3)

apply distributive method: a(b + c) = ab + ac

\sf \rightarrow 2 (42x) -2(8y)-2(5.3)

\sf \rightarrow 84x -16y-10.6

7 0
2 years ago
4,250,000 written in word form
Wewaii [24]
Four million two hundred fifty thousand
5 0
3 years ago
Read 2 more answers
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