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3 years ago

Pls help asap!!! which mapping diagram represent a function?

Mathematics

1 answer:

Volgvan3 years ago

5 0

Answer:

A function corresponds to one unique value of x and y hence A

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In a right triangle whose area is 12, each leg is as long as the side of a certain square. What is the area of the square?

kakasveta [241]

The area of a Square is 144 because 12x12 is 144 and if both sides are 12 then that equals 144.

Hope this helps!

4 0

3 years ago

Read 2 more answers

According to a 2014 research study of national student engagement in the U.S., the average college student spends 17 hours per w

Nadusha1986 [10]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = 17

For the alternative hypothesis,

µ < 17

This is a left tailed test.

Since the population standard deviation is not given, the distribution is a student's t.

Since n = 80,

Degrees of freedom, df = n - 1 = 80 - 1 = 79

t = (x - µ)/(s/√n)

Where

x = sample mean = 15.6

µ = population mean = 17

s = samples standard deviation = 4.5

t = (15.6 - 17)/(4.5/√80) = - 2.78

We would determine the p value using the t test calculator. It becomes

p = 0.0034

Since alpha, 0.05 > than the p value, 0.0043, then we would reject the null hypothesis.

The data supports the professor’s claim. The average number of hours per week spent studying for students at her college is less than 17 hours per week.

4 0

3 years ago

You are biking to the park. After six minutes 40% of the distance still need to be traveled. How long does it take to bike to th

nikklg [1K]

Answer:

$y = (100-10x)\%$

It takes <em>10 minutes</em> to the park.

Step-by-step explanation:

Given that:

Time taken = 6 minutes

Distance left to be traveled = 40%

To find:

The equation to represent the distance $y$ , that still needs to be traveled after $x$ minutes.

Solution:

As per given statement, distance traveled in 6 minutes = 60%

We can say that:

Distance traveled each minute = $\frac{60\%}{6}$ = 10%

After 1 minute, distance traveled = 10%

Distance left = 100 - 10 = 90%

After 2 minutes, distance traveled = 20%

Distance left = 100 - 20 = 80%

After $x$ minutes, distance traveled = 10 $x$ %

Distance left, $y$ = (100 - 10 $x$ )%

Therefore, the equation is:

$y = (100-10x)\%$

Time taken by the bike to reach to the park can be found by putting $y$ = 0 (i.e. distance left to be traveled = 0)

$0 = 100 -10x\\\Rightarrow 10x = 100\\\Rightarrow x = \bold{10\ minutes}$

8 0

3 years ago

If m = 34 and n = 5, what is the value of the following expression?

LekaFEV [45]

Answer:

option D .....11 ✔

Step-by-step explanation:

we put the value of m and n

$\longrightarrow \: 34 - 5 \times 5 + 2$

$\longrightarrow \: 34 - 25 + 2$

$\longrightarrow \: 36 - 25$

$\longrightarrow \: 11$

choose options D

Hope it's help :D

4 0

3 years ago

Read 2 more answers

Andrew solved the equation:

yaroslaw [1]

Https://www.google.com/amp/www.algebra.com/algebra/homework/Rational-functions/Rational-functions.faq.question.234605.amp

the only solution to the original equation is x = -1.

6 0

3 years ago

￼Pls help asap!!! which mapping diagram represent a function?

Pls help asap!!! which mapping diagram represent a function?