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Brilliant_brown [7]
3 years ago
10

The diameter of the larger circle is 10.5 cm. The diameter of the smaller circle is 4.5 cm. What is the approximate area of the

shaded region?
Mathematics
1 answer:
Maurinko [17]3 years ago
4 0
<span>The approximate area of the shaded region would be </span>47.25 cm.

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8x+21=3 need the answer please
GarryVolchara [31]

Answer:

x=-\frac{9}{4}

Step-by-step explanation:

<u>Step 1:  Subtract 21 from both sides</u>

8x + 21 = 3

8x + 21 - 21 = 3 - 21

8x = -18

<u>Step 2:  Divide 8 from both sides</u>

8x = -18

\frac{8x}{8}=-\frac{18}{8}

x=-\frac{9}{4}

Answer:  x=-\frac{9}{4}

3 0
1 year ago
A competition to catch the most rainbow trout on Lake Rainbow pitched the men against the ladies. 16 men and 12 women participat
Valentin [98]

The probability that a participant successfully catches 3 rainbow trout, given that the participant was a woman is 0.0042.

P(woman) = 12/28

= 3/7

P(men) = 16/28

= 4/7

P(3 trouts) = P(3 trout | women)*P(woman) + P(3 trout | men)*P(man)

= P(3 trout | women)*(3/7) + (15C3 * (0.09^3)*(1-0.09)^(15*3))*(4/7)

= P(3 trout | women)*(3/7) + (0.00476)*(4/7)

P(woman | 3 trout) = P(3 trout | women)*P(woman) / P(3 trouts)

{P(3 trout | women) = p}

p*(3/7) / (p*(3/7) + (0.00476)*(4/7)) = 0.40

p*(3/7)/0.40 = (p*(3/7) + (0.00476)*(4/7))

p*((3/7)/0.40 - (3/7)) = (0.00476)*(4/7)

p = [(0.00476)*(4/7)] / [((3/7)/0.40 - (3/7))]

= 0.0042

Learn more about probability here brainly.com/question/24756209

#SPJ4

7 0
2 years ago
How do I work out this equation 7x+5=8x-25
beks73 [17]
    7x + 5 = 8x - 25
         -  5 = -8x -5
-------------------------------
7x - 8x = - 5 - 25

-1x = - 30
-----   -------
 -1        -1

x = 30

4 0
3 years ago
Read 2 more answers
Please show the answer with the work, GodBless.
Yanka [14]
Well, we know that y=1/2x+5 from the first equation. if we substitute that into the second equation, it becomes 2x + 1/2x +5 =1. solve for x. 2x+1/2x= -4, 2 1/2x=-4, x=-1.6. plug that in to one of the equations. 2(-1.6)+y=1, -3.2+y=1, y=-2.2. the solution is (-1.6, -2.2)
8 0
3 years ago
What is 6/7 x 7/8 ?
maks197457 [2]

Answer: 42/56 simplest form is 3/4

Step-by-step explanation:

Multiply 6*7 to get 42 and 7*8 to get 56. Turn it into a fraction and get 42/56

Divide each side by 14 and get 3/4

6 0
3 years ago
Read 2 more answers
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