The product of two negative integers is positive. (-a) *(-b) = ab True
The product of two integers with different signs is positive. (-a) (b) = -ab False
If two numbers are the same sign, then the product is positive.
a*b = ab -a * -b = ab True
The product of a positive and a negative is negative.
-a * b =- ab a * -b =- ab True
If the signs of two integers are different, then the product is positive.
-a * b =- ab a * -b =- ab False
Answer:
-2x - 10
Step-by-step explanation:
(2x-6) - (4x+4) multiply (4x+4) by -1 -1(4x + 4) = -4x - 4
2x - 6 - 4x - 4 Re-arrange
2x - 4x - 6 - 4
-2x - 10
The answer to this problem is 164.
Hope this answer helps! feel free to ask any additional questions :)
Answer:
15.87% probability that a randomly selected individual will be between 185 and 190 pounds
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

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 pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What is the probability that a randomly selected individual will be between 185 and 190 pounds?
This probability is the pvalue of Z when X = 190 subtracted by the pvalue of Z when X = 185. So
X = 190



has a pvalue of 0.8944
X = 185



has a pvalue of 0.7357
0.8944 - 0.7357 = 0.1587
15.87% probability that a randomly selected individual will be between 185 and 190 pounds
Answer:
144
Step-by-step explanation:
(100/5) x 4 + ( 4 to the power of 3 ) = 144
Hope that helps you.