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Jobisdone [24]
3 years ago
6

How many acute angles does a triangle have?

Mathematics
1 answer:
OleMash [197]3 years ago
8 0
Two angles, each 90 degrees
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A circle with radius of 2cm sits inside a circle with radius of 4cm What is the area of the shaded region
Klio2033 [76]

ANSWER

12\pi \:  {cm}^{2}

EXPLANATION

We want to find the area of the shaded region.

We find the area of the smaller circle and subtract from the area of the larger circle.

Area of smaller circle is

a = \pi \: \times   2^{2}  = 4\pi

Area of larger circle is

A = \pi \:   \times {4}^{2}  = 16\pi

The area of the shaded region is:

16\pi - 4\pi = 12\pi

5 0
3 years ago
I’m beyond lost. I really struggle with geometry
sammy [17]
Same. You should use Desmos online graphing calculator if you have anymore problems like this. You just put it into the calculator and it graphs the line. In this case, the line must be perpendicular to the line CD, basically a horizontal version of the line. I put all of these into Desmos and the one that is perpendicular is -0.5x + 5.5. Hope this will help you in the future!
3 0
3 years ago
The function a(t)=t^(1/2)−t^(−1/2) m/s^2 represents the acceleration of a particle moving along a horizontal axis. At time t=0,
garri49 [273]

Answer:

see below

Step-by-step explanation:

a(t)=t^(1/2)−t^(−1/2)

We integrate to find the velocity

v(t) = integral t^(1/2)−t^(−1/2) dt

     = t ^ (1/2 +1)         t ^ (-1/2 +1)

          ------------   -    -----------------  + c  where c is the constant of integration

              3/2                   1/2

v(t) = 2/3 t^ 3/2  - 2 t^ 1/2 +c

We find c by letting t=0 since we know the velocity is 4/3 when t=0

v(0) = 2/3 0^ 3/2  - 2 0^ 1/2 +c = 4/3

       0+c =4/3

       c = 4/3

v(t) = 2/3 t^ 3/2  - 2 t^ 1/2 +4/3

To find the position function we need to integrate the velocity

p(t) = integral 2/3 t^ 3/2  - 2 t^ 1/2 +4/3 dt

     2/3 t ^ (3/2 +1)        2 t ^ (1/2 +1)           4/3t

          ------------   -    -----------------  + ------------- + c  

              5/2                   3/2                    1

p(t) =  4/15 t^ 5/2 - 4/3t ^ 3/2 + 4/3t +c

We find c by letting t=0 since we know the position is -4/15 when t=0

p(0) =  4/15 0^ 5/2 - 4/3 0 ^ 3/2 + 4/3*0 +c = -4/15

         0 +c = -4/15

            c = -4/15

p(t) =  4/15 t^ 5/2 - 4/3t ^ 3/2 + 4/3t -4/15

8 0
3 years ago
Read 2 more answers
What is the percent of change in the cost of a hot dog?
gtnhenbr [62]

Answer:

What hotdogs

Give the numbers

4 0
3 years ago
If the discount is 36% and the sale price is $32 what was the original price
jok3333 [9.3K]

Answer:

89

Step-by-step explanation:

100/36= 2.77777778

2.77777778·32 = 88.8888889

89

8 0
3 years ago
Read 2 more answers
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