Answer:
Question 1: $2 / Question 2: $7.5
Step-by-step explanation:
$5 is the original 100%, what Noah has, and if Elena has 40% of what Noah has, then they have 0.4 the amount, 5x0.4=2. It should be the same for Diego but instead 150%, or 5x1.5, which equals 7.5
Answer: The perimeter is 96 m
Step-by-step explanation:
If we tag the length of the rectangle as
and the width as
, and if in addition we are told
,the dimensions of the rectangle are as shown in the figure.
Now, the area of a rectangle is given by:
Since
:
Isolating
:
On the other hand, the perimeter of a triangle is given by the addition of each of its sides. Then, if the rectangle has two sides that measure
and two sides that measure
, the perimeter is:

Substituting the value of
in the last equation:

Finally the perimeter is:

Answer:
-18
Step-by-step explanation:
f(x) = x² - 3x -10
f(-10) = (-10)² – 3(-10) – 10
f(-10) = 100 + 30 - 10
f(-10) = 120
f(-5) = (-5)² – 3(-5) – 10
f(-5) = 25 + 15 - 10
f(-5) = 30
=====
The <em>average rate of change</em> is the slope m of the straight line joining the two points.
m = (y₂ - y₁)/(x₂ - x₁)
m = (30 - 120)/(-5 – (-10))
m = -90/(-5+10)
m = -90/5
m = -18
Hello from MrBillDoesMath!
Answer:
True
Discussion:
From the diagram, f maps each x to a unique value so f is a function. One such possible possible function (but not the only one!) that does this is
f(x) = x/4
Thank you,
MrB
Answer:
x=8.5
Step-by-step explanation:
(6x+1)+(2x+10)=79
6x+2x 1+10
8x +11=79
-11 -11
8x=68
÷8 ÷8
x=8.5