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Firlakuza [10]
3 years ago
15

NO LINKS PLEASE help

Mathematics
1 answer:
liubo4ka [24]3 years ago
7 0

Answer:

Midpoint for A is (1,5) and for B it is (2.5,4.5)

Step-by-step explanation:

To get the midpoint you add the x coordinates and divide by 2 and then the y coordinates and divide by 2.

X = (3 + -1)/2    y = (8+ 2)/2

   =2/2 = 1             10/2=5

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Which expression has a negative value A. 2+12 B. (-3)(-8) C. 10-(-18) D. -35÷5
alina1380 [7]

Answer:

It's D

Step-by-step explanation:

6 0
3 years ago
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Jan has 3 1/3 feet of rope to use on a camping trip. Assume 1 foot = 30.48 centimeters. What is the best estimate of the centime
Otrada [13]
D is the answer because if you calculate the answer correctly. that will be so.
7 0
3 years ago
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Please help!!
yarga [219]

Because this is a fourth degree that will be tricky to factor as it is, we will do a u substitution. Let x^2=u. We can now rewrite that polynomial in terms of u: u^2-7u-8=0. Filling into the quadratic formula we have u=\frac{7+/-\sqrt{49-4(1)(-8)}}{2}. Simplifying down u=\frac{7+/-\sqrt{81}}{2} and u=\frac{7+9}{2} or u=\frac{7-9}{2}. That means that u = 8 or u = -1. But don't forget that we let u=x^2, so we have to put x-squared back in for u. That gives us x^2=8 which simplifies down to +/-2\sqrt{2}. That also gives us x^2=-1. When we take the square root of -1, we have to use the fact that -1 = i^2, so we sub that in to get x=+/-i. All in all, your solutions are as follows: 2\sqrt{2},-2\sqrt{2},i,-i which is choice b.

7 0
3 years ago
Write an equation in slope-intercept form of the line with the parametric equations x=2t and y=1-t
pentagon [3]

Answer: -x/2 + 1

Step-by-step explanation:

write t in terms of x

x = 2t

t = x/2

substitute t in y

y = 1 - t

y = 1 - x/2 or -x/2 + 1

6 0
3 years ago
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4. One printing machine printed 1920 books in 40 hours this week. A
Alecsey [184]
2880 books

Divide 1920 by 40
Then multiply the number by 2
You will get 96
Then multiply it by 30
6 0
2 years ago
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