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OLga [1]
3 years ago
11

Perform the operation. (3x^2+4)-(-5x^2+4x-1)

Mathematics
1 answer:
Galina-37 [17]3 years ago
7 0

Answer:

8x^2-4x+5

Step-by-step explanation:

(3x^2+4)-(-5x^2+4x-1)

Let's start by removing the parentheses.

3x^2+4-(-5x^2)-4x+1

Now let's reorder the equation to make it easier to combine like terms.

3x^2+5x^2-4x+1+4

Combine like terms.

8x^2-4x+5

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the school that imani goes to is selling tickets to a spring musical. on the first day of ticket sales the school sold 8 adult t
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3 0
3 years ago
What property is being used 9+(1+19)=9+_=
nataly862011 [7]

Answer:

20 or(1+19)

(3+17)

(19.5+.5)

there are infinity of choices

4 0
3 years ago
Help me please please please i need it
goldenfox [79]

Answer:

Step-by-step explanation:

Remark

If you take one radius whose length is r and start it at (0,0) on one end and (r,0) at the other, and sweep it around so the (r,0) hits every point on the circumference of the circle, the radius will go through 360°.

You have only gone through 120°. That's no problem. All you have to do now is add a fraction that adjusts for the 120°.

Formula

Arc length = fraction * 2*pi * r

2*pi * r is the circumference

Arc Length = 2* (120/360) * pi * r

Givens

r = 13

pi = 3.14

Solution

Arc Length = (120/360) * 2 * pi * 13

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Answer

Arc Length = 27.21

7 0
2 years ago
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