The mean of a data set is the average of the data set. It can be found by adding up all of the values and then dividing by the total number of values added. In this case, one is given the mean, and one needs to find a missing value. Since there is a missing element, add one to the total number of values in the data set. The missing element is represented by the parameter (x). Set up an equation and solve:

$\frac{(236)+(342)+(328)+(352)+(352)+(306)+(317)+(x)}{8}=325\\$

Simplify,

$\frac{2233+x}{8}=352$

Inverse operations,

$2233+x=2816\\\\x = 583$

3 0

3 years ago

Read 2 more answers

The equation of a parabola in vertex form is y = 2(x - 3)2 + 5. What is the standard form

Alexxx [7]

hello :

y = 2(x + 3)² - 5

y = 2(x²+6x+9) -5

y = 2x² +12x +13...(answer : A) y=2x^2+12x+13 )

Option (a) is correct.

The standard form the equation is

Step-by-step explanation:

Given : the vertex form of the equation of a parabola is

We have to write the given equation in standard form and choose the correct from the given options.

Consider the given equation of parabola

The standard form of equation of parabola is

We can obtain the standard form by expanding the square term in the given equation.

Using algebraic identity , we have,

Solving brackets, we get,

Simplify, we get,

Thus, The standard form the equation is

7 0

2 years ago

Venita is factoring the expression 32ab-8b She determines the GCF and writes the factored expression as 8b(4a-0) Which best desc

il63 [147K]

The answer is B.She subtracted the GCF from the second term in the expression instead of dividing.

Incorrect:
8b(4a-0)= 32ab-0

Correct:
8b(4a-1)=32ab-8b

Hope this helps! :)

3 0

3 years ago