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WARRIOR [948]
3 years ago
10

6r+7=13+7r solve the equation.

Mathematics
2 answers:
givi [52]3 years ago
8 0
The answer is r = <span>−<span>6. Hope this helps :D</span></span>
Likurg_2 [28]3 years ago
5 0
The answer is r=-6,,,
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Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
dlinn [17]
Use the formula slope= y-y/x-x
-10-r/-2-8= 1/10
-10-r/-10= 1/10
Multiply the denominator (-10) on both sides
-10-r= -1
Add -10 to both sides
-r= 9
r= -9
Hope this helps!
4 0
2 years ago
Read 2 more answers
(100+ POINTS)
horsena [70]

Answer:

1) 102.7 meters

2) 11

Step-by-step explanation:

1) -4.9x² + 75x = -4.9x² + 50x + 38

25x = 38

x = 1.52 s

Height = -4.9(1.52)² + 75(1.52) = 102.67904 m = 102.7 m

2) f(x) = x² + 3x - 2

f(2) = 2² + 3(2) - 2 = 8

f(6) = 6² + 3(6) - 2 = 52

Average rate of change:

(52-8)/(6-2) = 11

5 0
3 years ago
Read 2 more answers
Solve the quadratic equation.<br> (x + 1)2 = 16<br> x = 3 or-5<br> x= -3 or 5<br> X = 35
Damm [24]

Answer:

X=7

(x - 3 )(x +5)

(x+3) (x-5)

X - 35

Step-by-step explanation:

(x + 1)2 = 16

Expanding , we have

2x + 2 = 16

2x = 16 - 2

2x = 14

X= 7.

4 0
3 years ago
The table shows the temperatures at noon and 8:00 pm for two locations.
Karolina [17]

Answer:

A the changes were in different directions but the same magnitudes

7 0
3 years ago
A medication is 69 % effective against a bacterial infection. Find the probability that if 8 people take the medication at least
Sauron [17]

Answer:

5.52%

Step-by-step explanation:

there is a 5.52% chance of it not improving you do 69% of 8 and that determines if its not gonna get better.

3 0
2 years ago
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