katehoward1 katehoward1

01-02-2016
Mathematics

contestada

If x=4, calculate the value of: x2 +2x

Respuesta :

taskmasters taskmasters

01-02-2016

If x = 4

x² + 2x = 24

Substitute x by its value

4² + 2(4)
16 + 8 = 24

Answer Link

01-02-2016

We simply need to plug in x = 4 into x² + 2x

So plugging in x = 4, we get:

4² + 2(4)

Simplifying it, we get:

16 + 2(4)
16 + 8
24

When x = 4, x² + 2x will equal 24.

Answer Link

Otras preguntas

A 7-gallon jug of water costs $22.40. What is the price per pint?

% of adult daily smokers who began to smoke by age 18 A) 80% B) 90% C) 95% D) 99%

Parabola factory polynomial

Useful information about process variables is provided to operators by all of the following EXCEPT a. recorders b. bourbon tubes c. indicators d. alarms

Use the positions of a and b on the number line to answer the question below. b a=0.5 -1 0 + 1 5. Is a + b positive, negative, or zero? Explain how you know.

A pet sitter charges $84 for eight hours of work. At this rate, how much does the pet sitter charge for seven hours of work?

Useful information about process variables is provided to operators by all of the following EXCEPT a. recorders b. bourbon tubes c. indicators d. alarms

is quadrilateral MNPQ congruent to quadrilateral RSTU lesson 9-2

1.766*10^15=[4206T_s-378540]^3

Find the median and mean of the data set below: 40,38,1,19,8,36,40