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4 years ago

Perform the indicated operation.

Mathematics

2 answers:

Westkost [7]4 years ago

6 0

Answer:

---- is the answer.

Step-by-step explanation:

Just multiply across. So we will have:

a x b and 7 x 2.

Do the multiplication, you get:

-----

Hope this helps, sorry if I'm wrong!

~Mschmindy

tia_tia [17]4 years ago

4 0

Answer:

Option D

Step-by-step explanation:

We have to perform the indicated operation.

Given expression is $\frac{a}{7}\times\frac{b}{2}$

$\frac{a\times b}{7\times 2}$ [since $\frac{x}{y}\times \frac{m}{n}=\frac{mx}{ny}$ ]

⇒ $\frac{ab}{14}$

Option D is the answer.

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Answer:

See below

Step-by-step explanation:

I think we had a question similar to this before. Again, let's figure out the vertical and horizontal distances figured out. The distance from C at x=8 to D at x=-5 is 13 units while the distance from C at y=-2 to D at y=9 is 11 units. (8+5=13 and 2+9=11, even though some numbers are negative, we're looking at their value in those calculations)

Next, we have to divide each distance by 4 so we can apply it to the ratio. 13/4= $\frac{13}{4}$ and 11/4= $\frac{11}{4}$ . Next, we need to read the question carefully. It's asking us to place the point in the ratio 3 to 1 from C to D. The point has to be closer to endpoint D because of this. Let's take each of our fractions, multiply them by 3, then add them towards the direction of endpoint D to get our answer (sorry if that sounds confusing):

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Therefore, our point that partitions CD into a 3:1 ratio is ( $\frac{-7}{4}, \frac{25}{4}$ ).

I'm not sure if there was more to #5 judging by how part B was cut off. From what I can understand of part B, however, I believe that Beatriz started from endpoint D and moved towards C, the wrong direction. She found the coordinates for a 1:3 ratio point.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

We are given that a University wanted to find out the percentage of students who felt comfortable reporting cheating by their fellow students.

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4 years ago