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3 years ago

9

A cyclist travels 54 miles in 4 hours. Use dimensional analysis to convert the cyclist's speed to feet per second. Round your an

swer to the nearest tenth.
2 questions answer both please
for the second one find Y 7TH GRADE

1 answer:

diamong [38]3 years ago

8 0

Answer: feet is 13.5 14400 seconds which is 4 hours

I hope im right

Step-by-step explanation:

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What fraction of one hour (60 minutes) is represented by the following numbers of minutes? Simplify each fraction whenever possi

Alenkasestr [34]

Answer:

$\frac{1}{4}$

$\frac{1}{3}$

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3 years ago

Cindy shoots a bottle rocket straight up into the air such that its height h, in feet, at time t, in seconds, is given by the fu

dezoksy [38]

Answer:

t = [0.493,4.2]

Step-by-step explanation:

The height of the rocket straight up into the air is given by :

$h(t)=-16t^2+85t+5$

We need to find the interval the rocket be at least 43 feet above the ground.

$43\ge -16t^2+85t+5\\\\t\ge 0.493\ and\ t\le 4.82\ s$

So, the required interval during which the rocket is at least 43 feet above the ground is [0.493,4.2].

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3 years ago

skelet666 [1.2K]

Step-by-step explanation:

f°g= $f(g(x))$

$g(x)=x^2-6x$

$f(x)=1/x$

$f(g(x))=$ $\frac{1}{x^2-6x}$

if the denominator is zero the number is undefined which makes it not in the domain of the function

set $x^2-6x$ equal to 0

the values for x is 0 or 6

so the only value that is not in the domain of f°g is 0 and 6

Hope that helps :)

6 0

3 years ago

Which statement best discribe 3×8=8×3

never [62]

Answer:

<h2>the associative property</h2>

Step-by-step explanation:

the associative property, the order of the numbers does not change their product

3 * 8 = 8 * 3

24 = 24

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3 years ago

What is the amount of change? Show your work <br> a. 85% of 210 <br> b. 125% of 38

Stolb23 [73]

Basically you need to multiply the percent by the number.

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4 years ago