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labwork [276]
3 years ago
7

Simplify fully 2x(x+1)-3(x-5)

Mathematics
2 answers:
ser-zykov [4K]3 years ago
6 0

2x(x+1)-3(x-5)

2x^2+2x-3x+15

2x^2-x+15

Answer: 2x^2-x+15

Tems11 [23]3 years ago
6 0
2x(x+1)-3(x-5)

2x^2-2x-3x+15

Answer: 2x^2-5x+15
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How many times greater is the value of 3 in 300 than the value of the 3 in 30
Vikki [24]
Well it sounds like you mean smaller, not greater. 3/300 = 1/100 while 3/30 = 1/10. So 3 out of 300 is 10 times SMALLER than 3 out of 30. 

3 0
3 years ago
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Skate World offers birthday parties for a fee of $130 plus $3 per person. If you can spend no more than $190 on your party, what
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The max amount of ppl is 20
7 0
3 years ago
-18-12+(24/-8)-2(-15+10)
tigry1 [53]

Answer:

-17

Step-by-step explanation:

-18-12+(24/-8)-2(-15+10)

-18-12(-3)-2(-5)

-18-9-2(-5)

-27-2(-5)

-27+10

-17

I hope this helps! Please mark as brainliest! :D Good Luck! :)

3 0
3 years ago
If Luke can now mow 10 yards in 5 hours, how many lawns can he mow in 8 hours?
jeka94

Answer:

Step-by-step explanation:

10 yards in 5 hours is 2 yards an hour

8*2=16 yards in 8 hours

6 0
3 years ago
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Show how to solve the following; answer must be with fractions and pi
Bess [88]

Answer:

3pi/4 and -pi/4

Step-by-step explanation:

We can simplify -6/6 to -1.

Therefore, this function can be simplified to arctan(-1).

Recall that the meaning of arctan is to find a value that will get the value inside the parenthesis when taken the tangent of it. In other words, tan(x) = -1.

Recall that tan(x) = sin(x)/cos(x). Now recall that sin(pi/4) and cos(pi/4) are both sqrt(2)/2, meaning that tan(pi/4) is 1. To make it -1, we can either make sin(x) -1 while keeping cos(x) 1, or the other way around.

If x is -pi/4, cos(x) will still be 1, but sin(x) will be -1, so tan(-pi/4) will be -1.

If x is 3pi/4, cos(x) will be -1, but sin(x) will still be 1, so tan(3pi/4) will be -1.

Side note: there are still infinite more answers. You can attain them by adding or subtracting 2pi as many times as you want from 3pi/4 or -pi/4 and still get an arctan of -1.

3 0
3 years ago
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