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Zolol [24]
3 years ago
9

What is the area of the figure, use 3.14 for π

Mathematics
2 answers:
xeze [42]3 years ago
6 0

Answer: Area of a square is a².

4² = 16

Now find the area of the semicircle.

(πr²)/2

(3.14)(2)²/2

12.56/2

6.28

Now add the areas to find the total area.

6.28 + 16 = 22.28

Hope this helps :)

Step-by-step explanation:

serious [3.7K]3 years ago
3 0
The area is going to be 22.28 !
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Someone pls help me :c tysm if u do :))
iogann1982 [59]

Answer:13

Step-by-step explanation: Your going up on the number line.

Hope I was able to help! :)

3 0
2 years ago
Evaluate [(21 + 6) − 32] ק 9 ⋅ 2.
anzhelika [568]
OK.......
Evaluating [(21 + 6) - 32] 2 * 9 ק
Your answer would be 
-90 

H0P3 It H3LPS :)
8 0
3 years ago
Can someone please help me out with this its really urgent Ill mark brainliest
Alex73 [517]

Answer:

smart dot company c=.50t+12

communication plus c=2.50t

Step-by-step explanation:

smart dot has the starting point of $12 per month already so that would be your y-intercept with the equation being y=mx+b , y being the cost m being the amount of money per hour, x being the time spent, and b being the starting cost.

So with that smart dot would be c=.50t+12

with communication plus not having that starting point it would just be c=2.50t

7 0
3 years ago
Change the following expression into a single fraction: 3ab+2b^2/ab-a+2b/a+a-2b/b
ella [17]

Answer:

c-5

Step-by-step explanation:

3 0
2 years ago
I have a Triangle and I need to find the side BC?
Rus_ich [418]
Looking at this problem in the book, I'm guessing that you've been
introduced to a little bit of trigonometry.  Or at least you've seen the
definitions of the trig functions of angles.

Do you remember the definition of either the sine or the cosine of an angle ?

In a right triangle, the sine of an acute angle is  (opposite side) / (hypotenuse),
and the cosine of an acute angle is (adjacent side) / (hypotenuse).

Maybe you could use one of these to solve this problem, but first you'd need to
make sure that this is a right triangle.

Let's see . . . all three angles in any triangle always add up to 180 degrees.
We know two of the angles in this triangle ... 39 and 51 degrees.
How many degrees are left over for the third angle ?
180 - (39 + 51) = 180 - (90) = 90 degrees for the third angle.
It's a right triangle !  yay !  We can use sine or cosine if we want to.

Let's use the 51° angle.
The cosine of any angle is (adjacent side) / (hypotenuse) .
'BC' is the side adjacent to the 51° angle in the picture,
  and the hypotenuse is 27 .

cosine(51°) = (side BC) / 27

Multiply each side of that equation by 27 :

Side-BC = (27) times cosine(51°)

Look up the cosine of 51° in a book or on your calculator.

Cosine(51°) = 0.62932 (rounded)

<u>Side BC</u> = (27) x (0.62932) = <u>16.992</u> (rounded)
============================================

You could just as easily have used the sine of 39° .
That would be (opposite side) / (hypotenuse) ... also (side-BC) / 27 .
4 0
3 years ago
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