Using the average rate of change, it is found that the average rate is of:
(1) 2.1 °F per minute
<h3>What is the average rate of change of a function?</h3>
It is given by the <u>change in the output divided by the change in the input</u>.
In this problem:
- At 15 minutes, the temperature was of 90ºF.
- At 45 minutes, the temperature was fo 153ºF.
Hence, in 30 minutes, the temperature increased 63ºF, hence the rate is given by:
r = 63/30 = 2.1 °F per minute.
More can be learned about the average rate of change at brainly.com/question/24313700
The equation that can be used to find the number of emergency kits that Lexi packs is 4x=120.
Given that Lexi packs 4 water bottles into each kit and total 120 water bottles are packed by Lexi.
We are required to find the equation which can be used to find the number of emergency kits that Lexi packs.
Equation is like a relationship between two or more variables that are expressed in equal to form.Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation and many more depending on the power of the variable that is present in that equation.
let the number of emergency kits that Lessi packs be x.
The equation which will shows the total number of bottles be:
=(Number of bottles in 1 kit)*x
Equation will be:
4x=120
Hence the equation that can be used to find the number of emergency kits that Lexi packs is 4x=120.
Learn more about equations at brainly.com/question/2972832
#SPJ9
<span>so volume of a cone=1/3 times (area of base) times height
area of base=circle so
1/3 times pi times radius^2 times height
height=4
diameter=2radius
diameter/2=radius
9/2=4.5=radius
height=4
radius=4.5
aprox pi at 3.14
1/3 times (3.14 times 4.5^2) times 4=84.78
that's the volume of the cone
volume of cone=1/5 of cylinder
84.78=1/5cylinder
multiply both sdies by 5
423.9=volume of cylinder
volume of cylinder=height times area of base
area of base=3.14 times r^2
v=h3.14r^2
423.9=3.14hr^2
divide both sdies by 3.14
135=hr^2
since
we are not given the specific ratio of height to radius or such to the
cone to the cylinder, we must use trial and error to elimninate wrong
choices
135=hr^2
let's try A
A
135=3(3^3)
135=3(9)
135=27
false
A is wrong
B
4.23=h 5=r
135=4.23 times 5^2
135=4.23 times 25
135=105.75
false
B is wrong
C
h=15 r=6
135=15 times 6^2
135=15 times 36
135=540
false
C is wrong
D
33.75=h 2=r
135=33.75 times 2^2
135=33.75 times 4
135=135
the answer is D since it fitst the dimentions</span>
Answer:
take a light bulb and a potato and some wires connect together will give light
