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2 years ago

Simplify 4radical2plus7radical2minus3radical2

1 answer:

3 0

Let "radical 2" be represented by "r."

Then you are to simplify 4r + 7r - 3r. This comes out to 11r - 3r = 8r.

The answer is 8 radical 2.

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Evaluate<br> 3.r” + 2y when r<br> 3 and y<br> 3

aleksandr82 [10.1K]

Answer:

first 2x3= 6

3.3 + 6 = 9,3

answer should be 9,3

3 0

2 years ago

9x^3+6x^2-3x Please!!! HELP!!! need it done asap

Igoryamba

Step-by-step explanation:

9x^3+6x^2-3x

Cannot be simplified because there are no like terms but can be factored as

=3x(3x−1)(x+1)

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2 years ago

The attendance at a seminar in year 1 was 500. In year 2, the attendance changed by 100. What was the percent change in attendan

Citrus2011 [14]

Answer:

20%

Step-by-step explanation:

to figure this out yourself you could simply do 100/500 = 0.2 which translates to 20%

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2 years ago

Consider a circle whose size can vary. The circumference of the circle is always 2 π 2π times as large as its radius. Let r r re

Alenkasestr [34]

Answer: $C=2\pi r$

Step-by-step explanation:

Let be "C" the circumference of the circle (in feet) and "r" the radius of the circle (in feet).

Based on the information provided in the problem, you know that the circumference of the circle is always $2\pi$ as large as its radius.

Notice that this indicates a multiplication. Then, this means that the circumference of the circle is always equal to $2\pi$ by "r".

Based on this, you can write the following formula that expresses the circumference "C" in terms of the radius "r":

$C=2\pi r$

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2 years ago

If x + y = x y = 5 then x ^2 y + X Y ^ 2 equals

VikaD [51]

Answer:

Step-by-step explanation:

Note x^2y + xy^2 = xy(x+y)

We know xy = 5 and x+y = 5, so

5*5=25

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2 years ago