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2 years ago

8

How long will it take a passenger train traveling at 160 miles per hour to travel from Denver, Colorado to Lincoln, Nebraska? Th

e distance between the two cities is 488 miles

1 answer:

Vsevolod [243]2 years ago

4 0

Set up a proportion
$\frac{160 mi}{1hr} = \frac{488mi}{X hrs} 

So you multiply 488*1=488
Then 488/160=3.05 hours.

:)$

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2 beginner, 6 intermediate, 3 advanced...total of 11

P(advanced) = 3/11
replaced
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3 years ago

If f(x) = (1/9)(9^x) what is f(3)

TiliK225 [7]

Answer: The required value of f(3) is 81.

Step-by-step explanation: We are given the following function :

$f(x)=\left(\dfrac{1}{9}\right)9^x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We are to find the value of f(3).

Substituting x = 3 in equation (i), we get

$f(3)\\\\\\=\left(\dfrac{1}{9}\right)\times9^3\\\\=9^2\\\\=81.$

Thus, the required value of f(3) is 81.

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2 years ago

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a bus ride for a student costs $2.00 a monthly bus pass costs $44.00 which inequality represents the number c of tumed that a st

aalyn [17]

Answer: yes your right good job!

Step-by-step explanation:

5 0

2 years ago

For a-b, reduce to the least non-negative residue

Olenka [21]

Answer:

a. 6

b. 9

Step-by-step explanation:

a. The product modulo 7 can be found from the product of the individual numbers modulo 7:

(88·95·36·702) mod 7 = (88 mod 7)·(95 mod 7)·(36 mod 7)·(703 mod 7) mod 7

= (4·4·1·3) mod 7 = 48 mod 7 = 6

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b. Powers of 4 mod 11 repeat with period 5:

4 mod 11 = 4

4^2 mod 11 = 5

4^3 mod 11 = 9

4^4 mod 11 = 3

4^5 mod 11 = 1

So, 4^83 mod 11 = 4^3 mod 11 = 9

3 0

3 years ago

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alisha [4.7K]

Answer:

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Step-by-step explanation:

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$=\frac{8x^2y-10xy^2-22y}{2y}$

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[RevyBreeze]

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2 years ago

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