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2 years ago

Convert 32 kilometers per hour to miles per day. (3.28 feet 1 meter)

Mathematics

1 answer:

bonufazy [111]2 years ago

3 0

Answer:

477.09 mi/da

Step-by-step explanation:

If student must use conversion given, 3.28ft = 1m, then the following works:

32km/hr = ______mi/da 1 day = 24 hrs, 1m=3.28ft, 1km=1000m,1mi=5280ft

32km/hr x 24hr/day x 1000m/1km x 3.28ft/1m x 1mi/5280ft = 477.09mi/da

If student can use 1km = 0.62mi, some steps can be skipped.

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What is the total cost of an item that cost $43 when you add the sales tax (.0825)?

LuckyWell [14K]

Answer:

43.0825

Step-by-step explanation:

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2 years ago

Find the minimum value if f(x) = xe^x over [-2,0]

SashulF [63]

Given function:

$f(x)=xe^x$

The minimum value of the function can be found by setting the first derivative of the function to zero.

$f^{\prime}(x)=xe^x+e^x$ $\begin{gathered} xe^x+e^x\text{ = 0} \\ e^x(x\text{ + 1) = 0} \end{gathered}$

Solving for x:

$\begin{gathered} x\text{ + 1 = 0} \\ x\text{ = -1} \end{gathered}$ $\begin{gathered} e^x\text{ = 0} \\ \text{Does not exist} \end{gathered}$

Substituting the value of x into the original function:

$\begin{gathered} f(x=1)=-1\times e^{^{-1}}_{} \\ =\text{ -}0.368 \end{gathered}$

Hence, the minimum value in the given range is (-1, -0.368)

6 0

1 year ago

What is the median distance jumped 7.48, 7.60, 7.15, 7.44, 7.73, 7.72

irga5000 [103]

It would be 7.54 because you fist have to put the numbers ordered smallest to biggest amount 7.15, 7.44, 7.48,7.60, 7.72, 7.73 so the numbers that are in the middle are 7.48 and 7.60 you add them up, and the result you divide by 2 which gives you 7.54.

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2 years ago

Which of the following is not a proportion?

Alina [70]

4/10 = 12/20 since 4/10 = 10/20

5 0

3 years ago

Read 2 more answers

What is the standard form 2x-3x2=5??

tigry1 [53]

35 because 2x-3.45.there is the answer 35

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2 years ago