Simplify 4x + 3y + 6 + 2x + 4y

Mathematics

2 answers:

Ad libitum [116K]3 years ago

6 0

You add like terms, which means add the values with the x value, and the values with the y value, and never mix them. So for the x values, you have 4x + 2x, which equals 6x. Then you add the y values, 4y + 6y to get 10y. Then you add them to the remaining 6, and get

5x + 10y + 6

Ipatiy [6.2K]3 years ago

4 0

Here are some tips to help:

Like terms: terms that have the same variables and powers.

Examples: 2x & 50x; 100p & 2000p

Problem: Simplify 4x + 3y+ 6+ 2x+ 4y

Solution:

You might be interested in

Enter the value of p so the expression 5/6-1/3nis equivalent to p(5-2n).

SIZIF [17.4K]

Take LCD of 6 and 3 = 6 is the lcm
5/6 -2/6n
(5-2n)/6.

Now, what number can be multiplied to the right side of the equal sign to get the value of P

The answer is 1/6 as the left side is divided by 6, so multiply the right side by 1/6 to make it equivalent.

6 0

4 years ago

The amount of time all students in a very large undergraduate statistics course take to complete an examination is distributed c

Anestetic [448]

Answer:

a) The mean is $\mu = 60$

b) The standard deviation is $\sigma = 9$

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 zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

The probability a student selected at random takes at least 55.50 minutes to complete the examination equals 0.6915.

This means that when X = 55.5, Z has a pvalue of 1 - 0.6915 = 0.3085. This means that when $X = 55.5, Z = -0.5$