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IgorC [24]
2 years ago
10

In the expression 2x + x to the power of 2 + 3y, what are the coefficients?

Mathematics
2 answers:
jonny [76]2 years ago
6 0
The coefficients to this equation are 2 and 3.
GenaCL600 [577]2 years ago
5 0

Answer:

A coefficient is a number in front of a variable. For example, in the expression x 2-10x+25, the coefficient of the x 2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.

Step-by-step explanation:

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Suppose that IQ scores have a bell-shaped distribution with a mean of 95 and a standard deviation of 15. Using the empirical rul
professor190 [17]

Answer:

2.5% of IQ scores are no more than 65

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 = 95

Standard deviation = 15

Using the empirical rule, what percentage of IQ scores are no more than 65?

65 = 95 - 2*15

So 65 is two standard deviations below the mean.

By the Empirical Rule, 95% of the measures are within 2 standard deviation of the mean. Of those 5% which are not, 2.5% are more than 2 standard deviations above the mean and 2.5% are more than 2 standard deviations below the mean.

So 2.5% of IQ scores are no more than 65

3 0
2 years ago
the height, h cm, of a table is measured s 72cm correct to the nearest centimeters. conplete the following statement to show the
gogolik [260]
Anything between 71.5 and 72.499 recurring.

Hope this helps :)
6 0
3 years ago
What is 0.0417 in scientific notation?
Lina20 [59]
The scientific  notation: 4.17 x 10^-2
5 0
2 years ago
Read 2 more answers
Find the area of the triangle
Trava [24]

Answer:

32 m^2

Step-by-step explanation:

Area = 8 x (2 + 6) x 1/2

Area = 8 x 8 x 1/2

Area = 64 x 1/2

Area = 32

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

5 0
3 years ago
Read 2 more answers
What is the difference between a two step equation and a multi-step equation?
Step2247 [10]

Answer:

When solving a multi step equation, you use PEMDAS (parentheses, exponents, multiplication, division, add, subtract), and you also use PEMDAS when solving a multi step inequality. However, inequalities are tricky in the fact that if you multiply or divide by a negative number, you must flip the sign. And while normally there are 1 or 2 solutions to a multi step equation, in the form of x= #, you'll have the same thing, but with an inequality sign (or signs).

A two-step equation is an algebraic equation that takes you two steps to solve. You've solved the equation when you get the variable by itself, with no numbers in front of it, on one side of the equal sign.

hope it helped

3 0
3 years ago
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