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velikii [3]
2 years ago
11

Which expression is equivalent to 9q2-(3q - 7) +5q?? ) ? 3

Mathematics
1 answer:
lesantik [10]2 years ago
3 0

9q^2-(3q - 7) +5q= \\\\=9q^2-3q + 7 +5q= \\\\=9q^2+2q + 7

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PLEASE HELP IM TIMED!! WILL GIVE BRAINLEST!!
Goshia [24]

Answer:

The answer is C

Step-by-step explanation:

An isosceles triangle has two angles that measure the same, so...

30 + 30 = 60

180 - 60 = 120

No

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45 + 45 = 90

180 - 90 = 90

No

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60 + 60 = 120

180 - 120 = 60

Yes

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5 0
3 years ago
Find the distance between the parallel lines m and n whose equations are
MA_775_DIABLO [31]

Answer:Find the distance between the parallel lines m and n whose equations are y = x + 4 and y = x - 6, respectively.

There are several ways to do this...here's one

Let (0, 4) be a point on the first line

Then.......a line with a negative reciprocal slope going through this point will have the equation :

y = -x + 4........so......we can find the intersection of this line with y = x - 6....set both equations equal

-x + 4  = x - 6   add x, 6 to both sides

10 = 2x     divide both sides by 2

5  = x

So...using -x + 4, the y value  at intersection  = -1.......

So...we just need to find the distance from  (0,4)  to ( 5, -1)  =

√[ (5)^2 + (4 + 1)^2 ] =  5√2  ≈  7.07 units

Here's a pic....AB is the distance  with A = (0,4)  and B = (5, -1)

Step-by-step explanation:

8 0
3 years ago
Which is a statistical question?
attashe74 [19]
I’m pretty sure the answer is D. Sorry if I’m wrong
8 0
2 years ago
1.)The original price of a pair of shoes is $29.95. The shoes are on sale for 30% off. Which expression would calculate the sale
LekaFEV [45]
1. 0.7(29.95)
2. 1.04(284.99)
3. 49(0.75)(1.06)
4. 35+ 0.80m
5. 4500 (1.12)

Hope this helps!
4 0
3 years ago
PLEASE HELP ME GUYS :((​
Veseljchak [2.6K]

Answer:

8 - 8\sqrt{3}

Step-by-step explanation:

For this problem you have to use the 45-45-90 triangle theorem and 30-60-90 theorem.

For 45-45-90, the isosceles sides = 4, so the hypotenuse of the 30-60-90 triangle is 4 times 2, which is 8. If x is 8, then since y is the side across from the 60 angle, y is 8\sqrt{3. Since this really can't be simplified after y is subtracted from x, the final answer is just 8 - 8\sqrt{3}.

7 0
2 years ago
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