Answer:
Step-by-step explanation:
Given that:
To evaluate the expression, we must simply substitute the given value of , which is , for :
Multiply:
Subtract:
-
To check your work, simply set the given expression equal to our solution, :
Add to both sides of the equation:
Divide both sides of the equation by the coefficient of , which is :
Since it matches the given value of , our solution is correct!
Unit rate means how much does it cost for 1 unit
2.64 for 12 pencils
find 1 pencil
divide both sides by 12
0.22 for 1 pencil
0.22 per pencil
so y=5x on a graph is going to look like a 5/1 slope. X represents days and Y represents miles. So (1,5) means in 1 day Fran runs 5 miles.
Answer:
<h2>21/32</h2>
Step-by-step explanation:
-7/8 × -3/4 = 21/32
-7 × -3 = 21
-8 × -4 = 32
21/32
<u><em>IMPORTANT: This number is not negative, because a negative times a negative is a positive.</em></u>
By the way, if you didn't know how to arrive at the fraction here's how.
First, Address input parameters & values.
Input parameters & values: The decimal number = 0.65625. Then, write it as a fraction
0.65625/1
Multiply by 100000 both the numerator & denominator
(0.65625 x 100000)/(1 x 100000) = 65625/100000
65.625% = 65.625/100 or 65625/100000
Find LCM (Least Common Multiple) for 65625 & 100000.
3125 is the LCM for 65625 & 100000
Divide by 3125
65625/100000 = (65625 / 3125) / (100000 / 3125)
= 21/32
I'm always happy to help :)
Honors Pre-calc Quick Check
1. Determine the interval on which this function is constant
(-2,2)
2. Identify the x-values for which f(x)>-2
{x|2<x<8}
3. The figure shows the graph of the function y=(x-1)^2-4. Identify the x-values for which the function in increasing.
{x|x>1}
4. Identify the x- and y-intercepts of the graph
X-intercepts: (-1,0) and (3,0)
y-intercepts: (0,-3)
5. a batter hits a baseball into the air at an angle. The height of the ball in feet, is modeled by a quadratic function h(t), where t represents time, measured in seconds. Use the graph of the function to determine which pf the following statements most accurately models the height of the ball 5 seconds after is was hit.
h(5)=75
I hope you have a great day!