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kiruha [24]
3 years ago
9

Help please and hurry I need it rn even if you are not sure

Mathematics
1 answer:
Lesechka [4]3 years ago
3 0

Answer:

i think its -17

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What is a king to a god
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no-one God is the highest

Step-by-step explanation:

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Ray Of Light [21]

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A

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What is the solutions of the equation 2 (x+2) ^2-4=28
JulsSmile [24]

Answer:

x = 2            x = -6

Step-by-step explanation:

2 (x+2) ^2-4=28

Add 4 to each side

2 (x+2) ^2-4+4=28+4

2 (x+2) ^2= 32

Divide by 2

2/2 (x+2) ^2=32/2

(x+2)^2 = 16

Take the square root of each side

sqrt((x+2)^2) =±sqrt( 16)

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x = -2±4

x = -2+4      and x = -2-4

x = 2            x = -6

3 0
3 years ago
This is an off topic question but i feel the need to let other peoples brains keep running so these are the questions i will giv
serg [7]
<span>−4.6−(0.4+7.2)
</span><span>−20+(−40)+(−60)

4 and 5 is properties of addition

-80 is your answer

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6 0
3 years ago
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The time (X) to complete a standardized exam is approximately normal with a mean of 70 minutes and standard deviation of 10 minu
notka56 [123]

Answer:

77.88 minutes

Step-by-step explanation:

Given that :

Mean (m) = 70

Standard deviation (s) = 10

For 80% of student to complete the exam. In the given time

Using the formula :

Zscore = (X - mean) / standard deviation

80th percentile = 80/100 = 0.8 has a Zscore = 0.7881

0.7881 = (X - 70) /10

0.7881 * 10 = X - 70

7.881 = X - 70

7.881 + 70 = X

77.881 = X

Hence, 77.88 minutes should be given

5 0
3 years ago
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