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Korvikt [17]
3 years ago
10

Find the roots of the function.

Mathematics
2 answers:
Masteriza [31]3 years ago
6 0

Answer:

For quick answer its -9i,9i

Korolek [52]3 years ago
4 0
The answer is -9i , 9i
x^2+81=0
x^2=-81
x=√-81
=9i,-9i
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What word problem could be used for the 2 step equation .5(x+40)=200
Fiesta28 [93]

Since multiplying by 0.5 is the same as dividing by 2, the problem is described by the sentence

"Half the sum of a number and 40 equals 200"

5 0
3 years ago
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Write the slope - intercept form of the equation of each line through the points -2,5) and (0,-2)​
grin007 [14]
Gradient (m) = change in y/change in x
-2-5/0–2 = 3.5
gradient (m) = 3.5
Now evaluate one of the coordinates and the gradient in the equation
y = mx + c
-2 = 3.5(0) + c
c = -2
so the answer is
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3 0
3 years ago
Who can solve this exercises pleaseeee i have a exam
Leona [35]

Answer:

Step-by-step explanation:

1) Two angles supplementary. So sum of two angles is 180

One angle  = x

Other angle = 2x

x + 2x = 180

3x = 180

x = 180/3 = 60

The angles are 60, 120

2)Two angles complementary. So sum of two angles is 90

one angle  = x

Other angle = x + 20

x +x +20 = 90

2x + 20 = 90

2x = 90- 20

2x = 70

x = 70/2 = 35

The angles are 35,55

3) one angle =x

Other angle = 3x - 20

x + 3x - 20 = 120

4x = 120 + 20

4x = 140

x = 140/4 = 35

The angles are 35,85

5) x + 4x -20 = 180

5x = 180 + 20

5x = 200

x = 200/5 = 40

x = 40

6) This sum is not clear only half is visible

5 0
4 years ago
Events A and B are mutually exclusive. Suppose event A occurs with probability 0.36 and event B occurs with probability 0.31. Co
Alekssandra [29.7K]

Answer:

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Step-by-step explanation:

If A and B are two events such as A and B are dependent then

P(A∩B)  P(A) P(B)

An event A will occur with probability 0.4 that is  

An event B will occur with probability 0.6 that is  

The probability that both A and B will occur is 0.20 that is P(A∩B) = 0.20

Therefore,

P(A∩B)  P(A) P(B)

So,

events A and B are dependent

4 0
3 years ago
Read 2 more answers
Jameel drew circle A and found that the measure of the is 58°. He knows that he can use this measure to determine the measure of
Anestetic [448]

Answer:

There is an incompletion here

"FOUND THAT THE --------- IS 58

Step-by-step explanation:

6 0
3 years ago
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