All categories

3 years ago

Explain which is faster: 10 centimeters/5 seconds or 10 centimeters/20 seconds.

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

5 0

Answer:

10 centimetre / 5 seconds

Step-by-step explanation:

10 cm / 5 sec means that you are travelling 10 cm every 5 seconds. Or 2 cm every 1 seconds. ( Divide by 5).

10 cm / 20 seconds means that you are travelling 10 cm every 20 seconds. Or 0.5 cm ever 1 second. (Divide by 20)

Trava [24]3 years ago

5 0

10 centimeters/5 seconds would be faster because even though they traveled the same distance, this one did it in a shorter amount of time. They only took 5 seconds to go 10 centimeters, while the other took 20.

You might be interested in

Change the following mixed number to an improper fraction. Reduce if possible. 2 4/40

slava [35]

84/40

Reduces to 21/10

4 0

3 years ago

Read 2 more answers

Is step 3 correct or would I change 5/2 into a decimal?

Rzqust [24]

Answer:

keep it man u will do ok just be careful with other problems

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which expression shows the distance you would drive from the gym to the office along this road?

-Dominant- [34]

B because absolute value means the distance of a point on a number line from 0. So the absolute value of -6 is 6 and you add that to 4

3 0

3 years ago

Find the equation of a line that passes through (2,8) and is parallel to the graph of y=2x+6. Write the equation in slope-interc

Rashid [163]

Answer:

The equation of a parallel line would be y = 2x + 4

Step-by-step explanation:

In order to find the equation of this line, we first have to note that paralell lines have same slopes. Therefore, since the original line has a slope of 2, we know the new line will have a slope of 2. Now we can use that information along with the given point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 8 = 2(x - 2)

y - 8 = 2x - 4

y = 2x + 4

3 0

3 years ago

PLEASE HELP!

Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

$\textrm{Slant height l} = \sqrt{r^2 + h^2}$ (1)

$\textrm{Lateral surface area} = \pi r l$

$\textrm {Base area} = \pi r^2$

$\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l)$ (2)

$\textrm{Volume V = } (1/3) \pi r^2h$ (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

$\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA} = 4\pi(4 + 8.944) = 4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04$

Figure(b)

r = 7, h =15

$\textrm{l} = \sqrt{7^2 + 15^2} =\sqrt{274} = 16.55$

$\textrm{SA} = 7\pi(7 + 16.55) = 517.89$

Figure (c)

r = 5, l = 8

$h = \sqrt{l^2 - r^2} = \sqrt{8^2 - 5^2} = \sqrt{39} = 6.245\\SA = \textrm{SA} = 5\pi(5 + 8) = 204.2\\V = (1/3)\pi(5^2)(6.245) = 163.5$

6 0

2 years ago