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cluponka [151]
3 years ago
15

Solve for x:

Mathematics
2 answers:
Len [333]3 years ago
5 0

A) Division

We can solve the problem as:

4x + 12 = 8 (Given)

4x = -4 (Subtraction)

x = -1 (Division)

We divide so we can simplify x to where it's x by it self.

Hope This Helped! Good Luck!

RUDIKE [14]3 years ago
4 0

Answer:symmetric property

Step-by-step explanation:

Im smart trust me

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What is the domain of the function y=3 sqrt x?
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Answer:

Step-by-step explanation:

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3 years ago
The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribut
Iteru [2.4K]

Answer:

83.85% of 1-mile long roadways with potholes numbering between 22 and 58

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 49

Standard deviation = 9

Using the Empirical Rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 22 and 58?

22 = 49 - 3*9

So 22 is three standard deviations below the mean.

Since the normal distribution is symmetric, 50% of the measures are below the mean and 50% are above the mean.

Of those 50% which are below the mean, 99.7% of those are within 3 standard deviations of the mean, that is, greater than 22.

58 = 49 + 9

So 58 is one standard deviation of the mean.

Of those which are above the mean, 68% are within 1 standard deviation of the mean, that is, lesser than 58.

Then

0.997*0.5 + 0.68*0.5 = 0.8385 = 83.85%

83.85% of 1-mile long roadways with potholes numbering between 22 and 58

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2 years ago
Copies of a famous painting were created at the local art museum for visitors to purchase. The copies had a 30% smaller area tha
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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please mark as brainliest!!<3

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2 years ago
Identify the triangle that contains an acute angle for which the sine and cosine ratios are equal.
algol13

Answer:

i need the diagram

Step-by-step explanation:

plz

3 0
3 years ago
Read 2 more answers
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