Which of these statements describe properties of parallelograms check all that apply

If 2 cars traveling towards one another are 100 miles apart and car A is traveling at 55 miles/hour, while car B is traveling at

Pepsi [2]

Answer:

Explanation:

The time when they meet is t in hours

The general formula for both cars is d = r*t

t is unknown

r1 = 55 mph

r2 = 60 mph

60 mph * t + 55 mph*t = 100 miles

t * (60 mph + 55 mph) = 100 miles

t * 115 = 100 miles

t = 100 miles / 115 mph

t = 0.8696 hours

1 hour has 60 minutes

0.8696 hour = x

x = 0.8696 hours * 60

x = 52 minutes and 10 seconds

They will meet at 2:52:10

You have to give answers to get the time to agree.

7 0

2 years ago

Which excerpt from the passage uses imagery to describe the scene? "But they woke at dawn as usual. . . Suddenly remembering the

Harlamova29_29 [7]

Answer:

They rolled in the dew, they cropped mouthfuls of the sweet summer grass, they kicked up clods of the black earth and snuffed its rich scent.”

Explanation:

sorry i was late :')

7 0

2 years ago

Read 2 more answers

If you haven’t been stopped by the police what do you think your reaction would be? Why do you think you would react this way? (

Dvinal [7]

I would probably be calm and coaperative with them. I would do this because the more nervous and unsure you act, the more defencive they will most likely be.

I hope this helps :)

8 0

2 years ago

How deep is the stiffer mantle?

creativ13 [48]

At a depth of 930 miles (1,500 km), this rock is some 300 times stiffer than at the boundary between the upper and lower mantle, which is about 410 miles (660 km) deep.

6 0

3 years ago

Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes ca

antoniya [11.8K]

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

$T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t}$ (1)

Where:

$T_{s}$ - Final temperature, in degrees Celsius.
$T_{o}$ - Initial temperature, in degrees Celsius.
$t$ - Time, in minutes.
$k$ - Cooling rate, in $\frac{1}{min}$ .
$T(t)$ - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when $T(t) = T_{s}$ , that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that $T_{o} = 80\,^{\circ}C$ , $t = 15\,min$ , $T_{s} = 50\,^{\circ}C$ and $T(15) = 60\,^{\circ}C$ , then the cooling rate of the substance is: