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Anika [276]
3 years ago
15

PLEASE ANSWER THIS, ASAP. PLEASE, LOOK AT THE PICTURE, AND PLEASE SOLVE IT RIGHT. PLEASE.

Mathematics
1 answer:
kupik [55]3 years ago
7 0

Answer:

x=11

Step-by-step explanation:

Angle EFB = 180 - 147 = 33 (Angles on a straight line add up to 180 degrees)

Angle FEB = 180 - 4x (Angles on a straight line add up to 180 degrees)

Since the angles in a triangle add up to 180 degrees ,

33+(180-4x)+x=180

Remove brackets:

33+180-4x+x=180

Add/Subtract:

213-3x=180

Subtract 213 from both sides:

213-3x-213=180-213

-3x=-33

Divide both sides by -3:

\frac{-3x}{-3}=\frac{-33}{-3}

x=11

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_30. Solve the following logarithmic equation: log8(x + 9) + 3 = 3
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A

Step-by-step explanation:

using the rule of logarithms

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2 years ago
A national survey interviewed 3800 people ages 18 and older nationwide by telephone. One question asked was the amount of gasoli
NeTakaya

Answer:

For this case a parameter represent the population data and for this case the parameter would be the true mean \mu who represent the amount of gasoline they used in the previous week

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And the sample mean is an unbiased estimator of the true mean.

Step-by-step explanation:

For this case a parameter represent the population data and for this case the parameter would be the true mean \mu who represent the amount of gasoline they used in the previous week

And in order to estimate the parameter of interest we use a survey of n =3800 and the sample mean who represent an statistic is given by:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And we got:

\bar X= \frac{\sum_{i=1}^n X_i}{3800} =11.75

And the sample mean is an unbiased estimator of the true mean.

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3 years ago
Find the value of each trigonometric ratio. 18) cos X Y 24 24 25 24 A) C) 25 B) D) 24 25 25​
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Answer:

Step-by-step explanation:

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2 years ago
What number must be added to 36 to obtain −12
dezoksy [38]
The correct answer is -48

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x = -48

36 + (-48) = -12
36 - 48 = -12
3 0
3 years ago
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