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4 years ago

HELP!!!

Mathematics

1 answer:

kicyunya [14]4 years ago

6 0

Answer:

The relationship is not a function.

Step-by-step explanation:

A relation is a function if and only if for each value of the variable x there exists a single value of f(x).

This means that if for a single value of x there is more than one value of y then the relation is not a function.

For the case shown in the image we have two variables.

The variable Months on the axis of abscissas and the variable days on the axis of the ordinates.

Note that for the month of February there are 2 different values of number of days, 29 and 28. Therefore, the relationship is not a function.

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3 years ago

When Amy roller-skates, she moves 110 yards per minute. What is her speed in miles per hour? Round your answer to the nearest hu

Softa [21]

Answer:

Speed of Amy is 3.75 miles per hour.

Step-by-step explanation:

We have, speed of Amy = 110 yards per minute

This means, she covers 110 yards of distance in 1 minute.

Now, to convert the speed of Amy into miles per hour, we will first convert the distance from yards into miles and then convert time from minutes to hour.

We know that,

1 yard = 3 feet

∴ 110 yards = 3 × 110 feet = 330 feet

Now, we also know that,

5280 feet = 1 mile

∴ 1 feet = $\frac{1}{5280}$ miles

So, 330 feet = $\frac{1}{5280}\times330$ = $\frac{1}{16}$ miles

∴ 110 yards = 330 feet = $\frac{1}{16}$ miles

Now, 60 min = 1 hr

∴ 1 min = $\frac{1}{60}$ hrs

So, 110 yards = $\frac{1}{16}$ miles and 1 min = $\frac{1}{60}$ hr

So, we can say that, Amy covers a distance of $\frac{1}{16}$ miles in

$\frac{1}{60}$ hr.

We know that,

$speed=\frac{distance}{time}$

$speed=\frac{(\frac{1}{16}) miles}{(\frac{1}{60})hr}$

$speed=\frac{60}{16} miles/hr = 3.75 miles/hr$

Therefore, the speed of Amy in miles/hr is 3.75 miles/hr.

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4 years ago

What is the slope of the equation of a line that passes through the point

KATRIN_1 [288]

Answer:

y = 0.8x – 4

y = 4 /5x- 4

Step-by-step explanation:

the slope is 4/5 or 0.8 either one work :)

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3 years ago