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3 years ago

Why is circle 1 similar to circle 2?

Mathematics

2 answers:

earnstyle [38]3 years ago

6 0

Answer:

Option A.

Step-by-step explanation:

we know that

The circle 1 and circle 2 have the same center

The ratio of its radius is equal to the scale factor

The scale factor is equal to

$\frac{4.8}{1.2}=4$

<em>That means</em>

The radius of circle 1 is 4 times the radius of circle 2

therefore

Circle 1 is a dilation of circle 2 with a scale factor of 4

Andre45 [30]3 years ago

5 0

Answer:

Circle 1 and circle 2 have the same center.

Step-by-step explanation:

x = -1 - (-1) = 0 so x

y = 10 - 10 = 0 so y

( x ,y )

scale factor 1.2/4.8m = 0.25

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

$\frac{dh}{dt} =0$

Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

$\frac{dh}{dt}=-16t+40$

For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

$\Rightarrow 16t=40$

$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0

3 years ago

15 points work out ratio for x

BlackZzzverrR [31]

Answer:

x = 25

Step-by-step explanation:

x : (x+10) = 5:7

Fractional form

x / x+10 = 5/7

Cross multiply:

x * 7 = (x+10) * 5

7x = 5x + 50

7x - 5x = 5x + 50 - 5x

2x = 50

x = 25

Check:

25 : 25 + 10

25 : 35

25/35 = 5/7

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

2 years ago

What is the force acting on a 16 kg object accelerating at 2.0 m/s2

alexira [117]

Answer:

32 n

Step-by-step explanation:

I had the same problem but I used a net force calculator the formula is F=MA so it would be 32=16/2.0 :)

6 0

2 years ago

What is a scale drawings<br>

Otrada [13]

A drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale). The scale is shown as the length in the drawing, then a colon (":"), then the matching length on the real thing.

4 0

3 years ago

What multiplies to -75 and adds to 10? <br> thanks

Gelneren [198K]

-5 and 15. -5 times 15 is equal to -75, and they also add to 10.

6 0

3 years ago