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Anastaziya [24]
2 years ago
11

What is the answer to this question

Mathematics
1 answer:
8_murik_8 [283]2 years ago
8 0

Answer:

56

Step-by-step explanation:

7 (2)^3

We do this according to PEMDAS

The Parentheses here are do indicate what is in the exponent

We do the Exponent first

2^3 = 2*2*2 = 8

7(8)

There is an implied multiplication here

7*8

Now we do the multiplication

56

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Answer:

hi

Step-by-step explanation:

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Alonso leans a 28-foot ladder against a wall so that it forms an angle of 65° with the
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The horizontal distance between the base of the ladder and the wall is: 11.8 foot
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2 years ago
According to the empirical (69-95-99.7) rule, if a random variable z has a standard normal distribution, then approximately 95%
Dmitry_Shevchenko [17]

Using z-scores, it is found that the value of z is z = 1.96.

-----------------------------

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean \mu and standard deviation \sigma, is given by:  

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • Each z-score has an associated p-value, which is the percentile.

  • The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
  • The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
  • The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
  • Thus, the value of Z is 1.96.

A similar problem is given at brainly.com/question/16965597

7 0
2 years ago
8 less than the product of 9 and a number is 15
Shkiper50 [21]
8-9n=15 I believe
At least I hope
4 0
2 years ago
Read 2 more answers
Please help ill give brainliest
astra-53 [7]

Answer:

y = 7/8x + 1

Step-by-step explanation:

According to y = mx + b, whereas b is the y-intercept

so if b is positive, b has to be larger than 0

A non-proportional graph is a straight line that does not go through the origin so

The #1 and #4 are wrong because they are proportional

The #2 and #4 are wrong because they have negative y-intercept

3 0
2 years ago
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