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3 years ago

Carol drove to her sister's house. she drove from 6:38 to 9:45. how long did she drive?

Mathematics

2 answers:

Marrrta [24]3 years ago

8 0

The answer isn't part of any of the choices that are up there The answer should be 3 Hours and 7 Mins

Ierofanga [76]3 years ago

4 0

Carol drove for 3 hours and 7 minutes
Hope this helps!!

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Pls help i dont understand :( will give Brainliest + 25 Points

wolverine [178]

Answer:

Step-by-step explanation:

plug the points into the slope formula

slope = (y2 - y1)/(x2 - x1) Then you get the slope of -0.5

(5 - -1))/(-6-6)

6/-12

-0.5

Plug a point in to the equation of y = -0.5x + b

-1 = -0.5(6) +b

2 = b

7 0

3 years ago

0.5 of what number is 12 and what is the equation to represent this problem? Include a variable

timama [110]

.5 means half. 12 x 2 is 24. so, your equation would be x/2=12

3 0

3 years ago

What is the value of f(x) when x=3?

zvonat [6]

I'm not good at math but I think is 3f because you'll be multiplying f(unknown #) by 3 so f(x) would be 3f

5 0

3 years ago

A presidential candidate plans to begin her campaign by visiting the capitals in 44 of 4343 states. what is the probability that

QveST [7]

If the 4 states have to be in a specific order say ABCD, then the total number of different possible routes is:

43P4 = 2,961,840

So the probability is:

1 / 2,961,840 = 3.38 x 10^-7

But if the 4 states can be in any order such as DBAC, ACBD etc, then the total number of different possible routes is:

43C4 = 123,410

So the probability is:

1 / 123,410 = 8.1 x 10^-6

No I don’t think it is practical to list all the different possible routes to select the one that is best. We can simply use mathematical models to solve for that one.

4 0

3 years ago

A cylinder is placed within a cube. The diameter of the cylinder is equal to the length of each side of the cube. What is the vo

pochemuha

The volume of a shape is the amount of space in it.

<em>The volume outside the cylinder, but inside the cube is 214.6 cubic inches</em>

The given parameter is:

$l = 10$ ---- length of the cube

So, the volume of the cube is:

$V_1 = l^3$

$V_1 = 10^3$

$V_1 = 1000$

The volume of the cylinder is:

$V_2 = \pi r^2h$

The diameter (d) of the cylinder equals the length of the cube.

This means that:

$d = l$

$d = 10$

Divide by 2 to calculate the radius of the cylinder

$r = \frac{10}{2}$

$r = 5$

Also, the height of the cube is::

$h =l$

$h =10$

So, we have:

$V_2 = \pi r^2h$

$V_2 = \pi \times 5^2 \times 10$

$V_2 = \pi \times 25 \times 10$

$V_2 = \pi \times 250$

$V_2 = 785.4$

So, the volume (V) outside the cylinder is:

$V = V_1 - V_2$

$V = 1000 - 785.4$

$V = 214.6$

Hence, the volume outside the cylinder is 214.6 cubic inches