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lapo4ka [179]
2 years ago
5

Question 5 of 20

Mathematics
1 answer:
Ymorist [56]2 years ago
3 0

Answer:

B

Step-by-step explanation:

The first term is - 9 and the common difference is 6.

Formula is - 9+(n-1)*6

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Help, ASAP! Please!!
Yuliya22 [10]

Answer:

a. Parallel

b. Not parallel

Step-by-step explanation:

Systems which have no solutions are parallel lines. These lines do not intersect and therefore have no solution. Remember, parallel lines have the same slope. Compare the slope in each equation when in y=mx+b format to see if they are parallel.

a. y= 2x + 3                                                  y-2x=-3 becomes y = 2x - 3

m = 2                                                            m= 2

The slopes are the same so these are parallel lines.

b. 3x + y = 2 becomes y= -3x + 2               y = 1/3 x + 1/2

m = -3                                                          m= 1/3

The slopes are different so this is not parallel.

Since -3 and 1/3 are the negative reciprocals of each other. These lines are actually perpendicular.

7 0
3 years ago
CAN SOMEBODY PLEASE HELP WITH THIS ITS HARD FOR ME PLEASEEEE!!
zmey [24]
The answer is: x = -1, y = +4
7 0
3 years ago
9^2= 9.5^2 + 4^2 - 2 (9.5) (4) (cosR)<br><br> I'm trying to find out the angle measure of R
alexandr402 [8]
Sorry I can't solve it.

Firstly, the equation is wrong. It is supposed to be <span>81 ≠ </span><span>30.25

Second of all, this is the best I got </span>81= <span><span>−<span>76 <span>(<span>cos<span>(r) </span></span></span></span></span>+ <span>106.25</span></span>
5 0
3 years ago
Tammy bought a nightstand that was marked down 60% from an original price of $50. If she paid 10% sales tax, what was the total
AURORKA [14]

Answer: the total cost of the nightstand is $22

Step-by-step explanation:

The original price of the night stand is $50. If the original price of the night stand was marked down by 60%, it means that the amount of money by which it was reduced would be

60/100 × 50 = 0.6 × 50 = 30

The new selling price would be

50 - 30 = $20

If she paid 10% sales tax,the amount of tax paid would be

10/100 × 20 = 0.1 × 20 = 2

Therefore, the total cost of the nightstand would be

20 + 2 = $22

7 0
3 years ago
a ball is thrown straight up from the top of a 128 foot tall building with an initial speed of 32 feet per second. the height of
STatiana [176]
Factoring, you have
  h(t) = -16(t^2 -2 -8) = -16(t -4)(t +2)

The ball hits the ground when h(t) = 0, so
  0 = -16(t -4)(t +2)
  t = 4 or -2

The positive solution is the one of interest.
  It will take 4 seconds for the ball to hit the ground.

6 0
3 years ago
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