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Citrus2011 [14]

3 years ago

7

A crab walk 1/12 of a mile an hour. The crab 1/5 of a mile away from the beach . How long will it take the crab to reach the bea

ch

1 answer:

marysya [2.9K]3 years ago

3 0

Answer:

2.4 hours

Step-by-step explanation:

$\frac{1}{5} /\frac{1}{12}$

2.4 hours

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MARKING AS BRAINLIEST!! Starr if given functions are inverse)!

Kitty [74]

Answer: They are inverses of each other

==========================================================

Explanation:

We'll need to compute h(f(x)) and f(h(x)) to see if we get x each time.

$h(x) = 9x-4\\\\h(f(x)) = 9(f(x))-4\\\\h(f(x)) = 9\left(\frac{x+4}{9}\right)-4\\\\h(f(x)) = x+4-4\\\\h(f(x)) = x\\\\$

and,

$f(x) = \frac{x+4}{9}\\\\f(h(x)) = \frac{h(x)+4}{9}\\\\f(h(x)) = \frac{9x-4+4}{9}\\\\f(h(x)) = \frac{9x}{9}\\\\f(h(x)) = x\\\\$

Both composite functions lead to x each time.

The equations h(f(x)) = x and f(h(x)) = x being true means each function is the inverse of the other.

5 0

3 years ago

Read 2 more answers

To find the quotient Start Fraction 5 Over 7 End Fraction divided by one-third,

posledela

Answer:

its C.

Step-by-step explanation:

i took the test

8 0

3 years ago

For the sphere shown, r = 4.2 cm.<br> What is its volume, to the nearest cubic centimeter?

DochEvi [55]

V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3

Good luck!

8 0

3 years ago

Graph the image of this figure after a dilation with a scale factor of 2 centered at the origin.

KonstantinChe [14]

The coordinates for this would be : (2, -2)
(6, -2) (6, 4) and (2, 4)

I hope that this helps you !

7 0

3 years ago

A shipment of 50 inexpensive digital watches, including 10 that are defective, is sent to a department store. The receiving de

ddd [48]

Answer: 0.8926

Step-by-step explanation:

Given : A shipment of 50 inexpensive digital watches, including 10 that are defective.

The probability that a digital watch is defective $: p=\dfrac{10}{50}=0.2$

Sample size : n=10

Also, they reject the whole shipment if 1 or more in the sample are found defective.

Using the binomial probability formula :

$P(x)=^nC_xp^x(1-p)^{n-x}$

Let x be the random variable that represents the number of defective watches.

The probability that the shipment will be rejected :-

$P(x\geq1)=1-P(0)\\\\=1-^{10}C_0(0.2)^0(0.8)^{10}\\\\=1-(0.8)^{10}=0.8926258176\approx0.8926$

Hence, the probability that the shipment will be rejected = 0.8926

6 0

3 years ago