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coldgirl [10]
3 years ago
12

The diameter of a circle is 19 7/8". What is the circumference (to 2 decimal places)?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0

Answer:

62.41

Step-by-step explanation:

19 7/8= 19.875

C= pie x d

C= 3.14 x 19.875

C= 62.4075

C= 62.41 (if you want 2 decimal places)

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Hi I need help :( Pls show your working..Will give brainliest for helpful answer​
Basile [38]

Answer:

number 10

dy/dx =(dy/dt).(dt/dx)

now find

dy/dt=4t-1. , dt/dx=1

so : dy/dx=(4t-1).(1)

dy/dx= 4t-1 ,we have x=t-3-----> t=x+3

subtitute at t

dy/dx= 4(x+3)-1=4x+12-1= 4x+11

5 0
3 years ago
What are the measurements of the two angles in the figure below?
IgorC [24]

Both angles need to equal 180 degrees .

Add them together:

2x +10 + 3x-5 = 180

5X +5 = 180

Subtract 5 from each side:

5x = 175

Divide both sides by 5:

X = 175 / 5

X = 35


Now replace X with 35 in each equation:

2x +10 = 2(35) +10 = 70 +10 = 80

3x-5 = 3(35) - 5 = 105 -5 = 100


The answer is A. 80 and 100

5 0
3 years ago
Leon earns $14 an hour how much does he earn in 4 weeks If he works 12 hours each week
Rudiy27

Answer:

14$ times 12 hours =

168$

168$ times 4 weeks =  672$

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Quick Please :) Exponents and powers
MrRissso [65]

Step-by-step explanation:

(  {4}^{ - 3} ) ^{ - 3}  =  {4}^{9}

( { - 4}^{9} )  ^{2} = ( - 4) {}^{18}

( {4}^{6} ) ^{ - 3}  =      \frac{1}{{4}^{18}}

(  { - 4}^{9} ) {}^{2}  = ( { - 4})^{18}

({4}^{0} ) =  {4}^{0}

Hope this is correct and helpful

HAVE A GOOD DAY!

6 0
3 years ago
Read 2 more answers
S=L (1 - r), for r
maria [59]
OK. Then let's solve for ' r '.  That means you have to come up with an equation that says     r =    everything else.

Step #1: 
Write the equation you're given:   <span>S = L (1 - r)

Let's divide each side by ' L ':      S/L = 1 - r

Subtract 1 from each side :         S/L - 1 = -r

Multiply each side by -1 :          <em>  1 - S/L = r</em>

and there you have it.
</span>
3 0
3 years ago
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