Simplify each expression

Mathematics

1 answer:

Verizon [17]2 years ago

8 0

Answer:

-5n-1
72b+56

Step-by-step explanation:

-5n+1-2
-5n-1

-8b+80b+56
72b+56

You might be interested in

Solve:

disa [49]

The answer is A. x is greater than -50

- (x-8/6) = 7
x-8/6 = -7
x-8 = -42
x = -42+8
x = -50

X is greater than -50

3 0

3 years ago

Read 2 more answers

Seven is not an example of____.

Ket [755]

Answer:

An expression

Step-by-step explanation:

Here is what I think it is. 7 is not an example of an expression because an expression is an equation without an equal sign. I believe that an expression has more than 1 number in it, so 7 is not an expression.

4 0

2 years ago

Read 2 more answers

Write 0.634 in scientific notation

Elina [12.6K]

6.34x 10-1 because you take the decimal and put it in between the 6 and the 3 and then you figure out how many times destiny needs to move and if it needs moved to the left it is a negative and since it only does once it’s just -1

7 0

2 years ago

IQ scores on the WAIS test approximate a normal curve with a mean of 100 and a standard deviation of 15. What IQ score is identi

riadik2000 [5.3K]

Answer:

IQ scores of at least 130.81 are identified with the upper 2%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 100 and a standard deviation of 15.

This means that $\mu = 100, \sigma = 15$