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liubo4ka [24]
3 years ago
7

A car travels at a rate of 45 miles per hour for 5 hours. Let y be the distance, in miles, the car travels for a given amount of

time, x, in hours. This situation can be modeled by a function.
What is the domain of the function?
Mathematics
1 answer:
Nuetrik [128]3 years ago
6 0

Answer:

0 ≤ x ≤ 5

Step-by-step explanation:

I used the Desmos calculator

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Gerhard's Bistro has an 5:8 ratio of lunch customers to dinner customers. It averages 40 lunch customers. What is its average nu
zlopas [31]
Solve this ratio:

 5      40
--- = -----
 8       x

Then 5x = 320, and x = 64.  So, on a day on which there are 40 lunch customers, there are 64 dinner customers (answer).
4 0
4 years ago
Read 2 more answers
Cierra is buying juice. She needs 5 liters. A half liter juice cost $2.86. A 250​-milliliter container of juice costs ​$1.05. Wh
xenn [34]

Answer: 250 mL Juice container

Step-by-step explanation:

Given

Half liter juice costs $2.86 i.e.

\dfrac{1}{2}\ L\rightarrow\$2.86\\\\1\ L\rightarrow\dfrac{2.86}{\frac{1}{2}}=\$5.72\\\\5\ L\rightarrow\$28.6

A 250 mL juice costs $1.05 i.e.

250\ mL=0.25\ L\rightarrow \$1.05\\\\1\ L\rightarrow \dfrac{1.05}{0.25}=\$4.2\\\\\Rightarrow 5\ L\rightarrow \$21

The cost of 250 mL Juice packet is low for 5 L quantity, therefore, Cierra must buy 250 mL Juice container

7 0
3 years ago
The length of a rectangle is 3 more than twice the width. Determine the dimensions that will give a total area of 27.
andrey2020 [161]
9 because 27 divided by 3 is 9
5 0
3 years ago
Which is not equal to the absolute value of -1?
timurjin [86]

Answer:

-2

Step-by-step explanation:

Absolute value is the distance from a number to 0 on the number line, so the number can't be negative, only positive. The absolute value of -1 would be 1, therefore it couldn't be -2, or any other negative numbers.

5 0
3 years ago
How can I set each side equal to each other?
jekas [21]
RTP: [a tan(u) + b]² + [b tan(u) - a]² = (a² + b²) sec²(u)

Proving LHS = RHS:

LHS = [a tan(u) + b]² + [b tan(u) - a]²

= a² tan²(u) + 2ab tan(u) + b² + b² tan²(u) - 2ab tan(u) + a²
= (a² + b²) tan²(u) + (a² + b²)
= (a² + b²)[tan²(u) + 1]
= (a² + b²) sec²(u), using the identity: tan²(x) + 1 = sec²(x)
= RHS

7 0
3 years ago
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