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3 years ago

Jethro walked at an average speed of 3 miles per hour for 2 hours. Randy walked at an average of 4 miles per hour for 3 hours.

2 answers:

7 0

Jethro walked 3 miles per hour for 2 hours. So you would want to do 3 x 2.
That equaling 6. So Jethro walked a total of 6 miles in two hours.
Randy walked 4 miles per hour for 3 hours. So you would want to do 4 x 3.
That equaling 12. So Randy walked a total 12 miles in three hours.
If you add 6 miles and 12 miles the boys would have walked a total of 18 miles together.
Hope you do good. Have a Tessariffic day.
Mark Me Brainiest Please.
Tessadog Out

pishuonlain [190]3 years ago

5 0

If Jethro walked 3mph for two hours, than you multiply 3×2=6 miles

if Randy walked 4mph for 3 hours then 4×3=12 miles

Mph×the number of hours= miles

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Step-by-step explanation:

Let's call x the lenght and y the height. The perimeter will be:

p = 2x + 2y = 10

When the lenght is halved and the height double we'll have:

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2 years ago

Find an equation for the nth term of the sequence. <br><br> -4, -16, -64, -256, ...

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3 years ago

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The exponential function which represented by the values in the table is $f(x)=4(\frac{1}{2})^{x}$ ⇒ 3rd answer

Step-by-step explanation:

The form of the exponential function is $f(x)=a(b)^{x}$ , where

a is the initial value (when x = 0)
b is the growth/decay factor
If k > 1, then it is a growth factor
If 0 < k < 1, then it is a decay factor

The table:

→ x : f(x)

→ -2 : 16

→ -1 : 8

→ 0 : 4

→ 1 : 2

→ 2 : 1

∵ $f(x)=a(b)^{x}$

- To find the exponential function substitute the value of x and f(x)

by some values from the table to find a and b, at first use the

point (0 , 4) to find the value of a

∵ x = 0 and f(x) = 4

∴ $4=a(b)^{0}$

- Remember that any number to the power of zero equal 1

except the zero

∵ $b^{0}=1$

∴ 4 = a(1)

∴ a = 4

Substitute the value of a in the equation

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- Chose any other point fro the table to find b, lets take (1 , 2)

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∴ $2=4(b)^{1}$

∴ 2 = 4 b

- Divide both sides by 4

∴ $b=\frac{2}{4}=\frac{1}{2}$

- Substitute the value of b in the equation

∴ $f(x)=4(\frac{1}{2})^{x}$

The exponential function which represented by the values in the table is $f(x)=4(\frac{1}{2})^{x}$

Learn more:

You can learn more about the logarithmic functions in brainly.com/question/11921476

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This is not my answer. I'm just here to help.

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