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3 years ago

Is this a function or no ?

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

3 0

It is not a function look at the picture it will show you

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What is 125.1 ÷ 6 and if you do how do you do it?

Mariana [72]

ans = 20.85

hope it helps...!!!

8 0

3 years ago

10. At the end of the day, Mandy sold the rest of her hot dogs at her hot dog stand for half price. 50

vekshin1

Answer:

Step-by-step explanation:

Firstly, we know she sold 24 hot dogs at half price. We do not know the total number of hot dogs.

Secondly, we know that 30% of the hot dogs were sold at half of the price. This means 70% were sold at full price.

Now there are two approaches to this. I'm going to take the easier one.

What we are expressing mathematically is that 30% of a certain number equals 24. Let the total number of hot dogs she had that day at her stand be x.

This mean 30% of x = 24.

30/100 × x = 24

30x = 24× 100

30x = 2,400

x = 2,400/30 = 80.

This means she had a total of 80 hot dogs that day. Since we know the number she sold at half price, it's now easy to calculate the number she sold at full price.

This number now equals 80 - 24 = 56 hot dogs.

This mean Mandy sold 56 hot dogs at full price.

4 0

3 years ago

What is the measure of angle ABC

Setler [38]

Check the picture below.

3 0

3 years ago

Read 2 more answers

HELP

Reptile [31]

Answer:

The time it takes for the cannonball to hit the ground is 6.49 seconds.

Step-by-step explanation:

You know that the height of the cannonball above the ground, h, in meters, in time, t, in seconds, is found by the function h(t) = -4.9t² + 30.5t + 8.4. You want to calculate the time it takes for the cannonball to hit the ground, that is, the time it takes for the bullet to reach zero height. So, being h(t) = 0 you have:

0 = -4.9t² + 30.5t + 8.4

To solve a quadratic function 0=a*x² + b*x +c, the expression is applied:

$\frac{-b+-\sqrt{b^{2} -4*a*c} }{2*a}$

In this case, being a = -4.9, b =30.5 and c =8.4 you have:

$\frac{-30.5+-\sqrt{30.5^{2} -4*(-4.9)*8.4} }{2*(-4.9)}$

Solving you get:

t1= -0.26 seconds and t2=6.49 seconds

Since time does not have a negative value, then <u><em>the time it takes for the cannonball to hit the ground is 6.49 seconds.</em></u>

3 0

3 years ago

HELP PLEASE wil mark braniest if right

liraira [26]

Answer:

Bold or italicize to highlight important points in your answer.

Step-by-step explanation:

3 0

3 years ago