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3 years ago

PLEASE HELP!!!!

Mathematics

2 answers:

Katena32 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Tatiana [17]3 years ago

6 0

Answer:

Pretty sure it's

D. None of the above

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Use the formula you learned to answer the question. If a dogsled team travels 4 kilometers in 8 minutes, what is the speed of th

bonufazy [111]

Answer

C-0.5km

Step-by-step explanation:

you can simplify both the kilometers and minutes to 1 kilometer in 2 minutes or 0.5 kilometer in 1 minute. Hope this helps!

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3 years ago

A rectangle has a length five more than twice the width. If the perimeter is 22 units find the width and length

PtichkaEL [24]

Set the following: Length = L Width = W

The length is twice the width: L = 2*W or: W = L/2

Perimeter: P = 60ft = 2*L + 2*W

Substituting L for W in the perimeter equation gives:

P = 60ft = 2*L + 2*(L/2) = 2*L + L = 3L

L = 60ft/3 = 20ft W=L/2=20ft/2=10ft

Verify result: Perimeter= P = 60ft = 2L + 2W = 2*20ft +2*10ft = 40ft+20ft = 60ft

The area of the rectangular is: Area = A = Length*Width = L*W = 20ft*10ft = 200 (ft)^2

-Rosie

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3 years ago

Which would most likely be graphed using a continuous graph? Check all that apply. (Medal for correct answer.

zlopas [31]

We need an image to be able to answer this question

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3 years ago

For art class, each student

Mars2501 [29]

Answer:

s=25

Step-by-step explanation:

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3 years ago

Physics students were modeling the height of a ball once it was dropped from the top of a 10 foot ladder. The

julsineya [31]

Answer:

Interval notation: [0, 2.236]

Set Builder notation: $\{t\ |\ 0\le t\le 2.236\}$

Step-by-step explanation:

Given that:

Equation of height of the ball dropped from a height of 10 foot, as:

$h(t) = 10 - 2t^2$

Where $t$ is the time since the ball was dropped.

To find:

The domain of the function in Interval and set builder notation.

Solution:

Domain of a function is defined as the set of valid input values that can be given to the function for which the function is defined.

Here, input is time.

We can not have negative values for time.

Therefore, starting value for time will be 0 seconds.

And the value of height can not be lesser than that of 0 ft.

$0= 10 - 2t^2\\\Rightarrow 2t^2=10\\\Rightarrow t^2=5\\\Rightarrow t =2.236\ seconds$

Maximum value for time can be 2.236 seconds.

Therefore the domain is:

Interval notation: [0, 2.236]

Set Builder notation: $\{t\ |\ 0\le t\le 2.236\}$

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3 years ago