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nekit [7.7K]
2 years ago
5

Find the gradient of (8,12) and (12,11)

Mathematics
1 answer:
erastovalidia [21]2 years ago
5 0

Answer:  m = -1/4

Have a good day!

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3. Solve the equation using square roots. If the equation has no real solution, write
noname [10]
3) x² - 121 = 0

x² = 121

x' = +√121

x' = 11

_______________

x'' = - √121

x'' = -11

Solution ⇒ S{-11 ; 11 } or (x-11)(x+11)

4) 4x² + 144 = 0

4x² = -144

x² = -144 / 4

x² = -36

x = √-36

No solution ⇒ S = ∅

5) z²+10z+21 = 0

Δ = 10² - 4(1)(21)

Δ = 100 - 84

Δ = 16

x' = (-10+4) / 2 = -6/2 = -3

x'' = (-10-4) / 2 = -14/2 = -7

Solution ⇒ S{ -7 ; -3} or (x+3)(x+7)
4 0
3 years ago
FIND THE VALUE OF X​
Crazy boy [7]

Answer:

By using the rule that the interior angles of any triangle equal 180 we see that:

m<ABC+m<CAB+m<ACB=180°

Therefore,

(2x+15)+(x+10)+(3x+5) = 180°

Now we have an equation and can solve for x:

Combine like terms:

(2x+15)+(x+10)+(3x+5) = 180°

6x+30=180°

6x+30-30=180-30

6x=150

x=25

To check our work just plug in 25 for x in each equation and the sum of those answers should add up to 180:

2x+15

2(25)+15

65

x+10

25+10

35

3x+5

3(25)+5

75+5

80

65+35+80=180

x=25 is valid

Step-by-step explanation:

7 0
3 years ago
40 50 60 70 80 90 100 110 120 130
RideAnS [48]

Answer:

um no problem with this is easy

5 0
3 years ago
Why cant i see answers anymore
Eddi Din [679]

Answer:

reload the page it happens to me but that might mean your gonna have to watch the add again wait nvm it aint working

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Adrian increased the amount of water he drinks he drinks everyday from 32 oz to 56 oz.By what percentage the amount of water he
Svetradugi [14.3K]
You can ask Siri. Answer is Increased 75%. “What percent is 56 out of 32.”
8 0
2 years ago
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