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ycow [4]
4 years ago
15

Type the algebraic equation for this statement. Let a represent the unknown number.

Mathematics
1 answer:
soldier1979 [14.2K]4 years ago
5 0

2x - 7= 147

this is the answer

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Find the length of the arc.Round your answer to the nearest tenth
FrozenT [24]

Find the circumference:

Circumference = 2 x pi x radius

Circumference = 2 x 3.14 x 9 = 56.52 inches


the arc length is 45 degrees/360 degrees of the circumference.


Marc length = 56.52 x 45/360 = 7.065 inches

Rounded to the nearest tenth = 7.1 inches

6 0
3 years ago
Factor the following quadratic equation; <br><img src="https://tex.z-dn.net/?f=12%20%7Bx%7D%5E%7B2%7D%20%20%2B%2022x%20-%2014" i
Bogdan [553]

Answer:

2(3x + 7)(2x - 1)

Step-by-step explanation:

You can see it a little easier if you take out a common factor of 2

2(6x^2 + 11x - 7)

The 6 leaves you with a lot of factors, the 7 does not. It only has 2 factors.

Let 6 factor into 2 and 3 and the 7 into 7 and 1

2(3x - 1 )(2x + 7)

Now remove the brackets.

2(6x^2 + 21x - 2x - 7) This obviously does not work but we'll combine like terms anyway.

2(6x^2 + 19x - 7)

So we'll try it again

2(3x + 7)(2x - 1)

2(6x^2 + 14x - 3x - 7)    Looks like we have it.

2(6x^2 + 11x - 7)

So the right factors are

2(3x + 7)(2x - 1)

5 0
4 years ago
HELP ASAP just the answer please I will give a brainliest
FinnZ [79.3K]

Answer:

C (900)

Step-by-step explanation:

50 for each orchestra

40 for each balcony

600 x 50 = 30000

39000/40 = 975

600+975=1575 not correct

750 x 50=37500

750 x 40 = 30000

not correct

900x50=45000

600x40=24000

correct

7 0
3 years ago
Read 2 more answers
Zack has a old car. He wants to sell it for 60% off the current price. The market price is $500. How much money would he receive
Snowcat [4.5K]
Zack would receive $200. You have to make 60% as a decimal= 0.60 then multiply $500*0.60= $300 then you subtract $500-$300=$200
(Hope this works!!)
6 0
3 years ago
A dart hits the board. What is the probability
Elena L [17]

Answer: The probability is 0.5

Step-by-step explanation:

The probability will be equal to the quotient between the area of region II, and the total area of the board (supposing that the probability of hitting in any place is equal)

The total area of the figure is equal to

Area = (15' + 35')*(8' + 20') = 50'*28' = 1400 in^2

Now, the area of region II is:

Region II = 20'*35' = 700

Then the probability is:

P = 700/1400 = 1/2 = 0.5

3 0
3 years ago
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