3 years ago

You arrive to science class 45 seconds after leaving math which is 90 meters away. how fast did you travel?

1 answer:

6 0

Speed = distance/time
Speed = 90 meters/45 seconds
Simplify the above answer
Speed = 2 meters/second
You can double-check this: You walk 2 meters per second, so multiply 2 by 45 (that is how many seconds), and you get 90.

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Find the measure of angle ABC

victus00 [196]

First we need to find x so 6x+8x+6x= 180
20x=180 and x= 9

So A= 6*9= 54
B= 8*9= 72
C= 6*9= 54

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2 years ago

Which of the following statements are true? Select all that apply

Murrr4er [49]

A,C,D is as an answer

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3 years ago

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sveticcg [70]

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3 years ago

The radius of the circle is increasing at a rate of 2 meters per minute and the sides of the square are increasing at a rate of

Lunna [17]

Answer:

Change in area=24 $\pi$ -48

Step-by-step explanation:

Let s will be the side of square and r will be the radius of circle.

Then two given conditions are

1)dr/dt=2 m/s

2)ds/dt=1 m/s

Area enclosed=(Area of square)-(Area of circle)

Area of square= $s^{2}$

Area of circle= $\pi r^{2}$

Area enclosed= $(\pi r^{2})-s^{2}$

dA/dt=2 $\pi$ r(dr/dt)-2s(ds/dt)

At s=24,and r=6

dA/dt=2( $\pi$ )(6)(2)-2(24)(1)

Change in area=24 $\pi$ -48

6 0

3 years ago

What would be the concentration if we were to mix 200g of 10% sugar solution and 300g of 20% sugar solution?

Firdavs [7]

+ 200g of 10% sugar solution: there is 200*10%= 20 g
+ 300g of 20% sugar solution: 300*20%= 60 g
The total of sugar: 20+60= 80g
And The concentration is 80:(200+300)= 80:500= 16%
Have fun

6 0

3 years ago