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3 years ago

12. Subway A can reach a top speed of 48 kilometers per hour. Subway B can reach a

Mathematics

1 answer:

fenix001 [56]3 years ago

6 0

Subway A is faster.

Hope this is correct

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What are the zeros of 3x²(x+π)³(x-4)²

Aneli [31]

Hi again!

The zeros are the values of x. This is where the graph intersects the x - axis. In order to find the zeros, replace y with 0 and solve for x.

The answer is x = 0, -π, 4

I am not sure what grade are you or the level, but for me, they sometimes asked me to find their multiplicities as well

The multiplicity of a root is the number of times the root appears.

So, the answer are
x = 0 and the multiplicity of 2
x = -π and the multiplicity of 3
x = 4 and the multiplicity of 2

Good luck with your studies!

5 0

3 years ago

Sam is five years old his older brother tom is three times as old is sam when salmon is 20 how old will tom be

kramer

Sam's bother is 23 years old

3 0

3 years ago

A cheetah ran 275 feet in 3.23 seconds. How fast did the cheetah run in miles per hour? Round your answer to the nearest whole m

yawa3891 [41]

First we convert feet into meters, since 1 feet is 0.3048 m: 275 feet * 0.3048 = 83.82m.

Then we do: 83.82m / 3.23s = 25.9504644 m/s.

Then we convert that into miles per hour by 2.23694, so we do:

25.9504644 * 2.23694 = 58.0496318.

Then we round it to 58 mph.

So the answer is: The cheetah was running at 58 mph.

Hope this helped! c:

6 0

3 years ago

Enter the difference between the rates of change for these two functions.

Alchen [17]

Answer:

Step-by-step explanation:

Graph :

Choose any two points. (0 , 2) and (-1 , -2)

Rate of change = Change in y ÷ Change in x

$= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{-2 - 2}{-1 - 0}\\\\= \frac{-4}{-1}\\\\= 4$

Table:

Rate of change = $\frac{-2-[-6]}{2-0}$

$= \frac{-2+6}{2}\\\\= \frac{4}{2}\\\\= 2$

4 0

3 years ago

Which number-line model represents the sum of 1.25+(-0.75)?

SIZIF [17.4K]

Solution:

A few tips...

Tip-1: If "+" and "-" are multiplied, it gives a result of "-".
Tip-2: If "-" and "-" are multiplied, it gives a result of "+".
Tip-3: If "+" and "+" are multiplied, it gives a result of "-".

Changing the sign of the given equation.

1.25 + (-0.75)
=> 1.25 - 0.75 [Sign changes according to tip-1.]

This could only mean that the arrow would go to 1.25 units forward. Then a second arrow will be drawn to go 0.75 units back.

The graph that matches with the above info is Option C.

5 0

2 years ago