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Katen [24]
4 years ago
8

According to a​ study, one dash fifth of all rough diamonds produced in one region are blood diamonds.​ Also, 88​% of the​ regio

n's rough diamonds are processed in City​ X, and of these​ diamonds, one dash fourth are blood diamonds. a. Find the probability that a rough diamond produced in this region is not a blood diamond. b. Find the probability that a rough diamond is processed in City X and is a blood diamond.
Mathematics
1 answer:
Alchen [17]4 years ago
6 0

Answer

a) 4:5 = 0,8 = 80%

b) 88% . 25% = 22%

Step-by-step explanation:

You might be interested in
X) sec’A + cosec?A<br>secA. cosecA​
VikaD [51]

Answer:

(Sin A + Cos A)/Sin A. Cos A

Step-by-step explanation:

As we know

Sec A = 1/Cos A

and Cosec A = 1/Sin A

Given Equation

Sec A + Cosec A

Substituting the given values, we get -

1/cos A + 1/Sin A

(Sin A + Cos A)/Sin A. Cos A

3 0
3 years ago
How do I solve these for example 3
Natasha2012 [34]
As the three longitudinal lines are parallel:

angle 4 = 5 = 6 = 82 degree (corresponding angles) = 9 = 8 = 7 = 82 degrees (vertical angles)

and

angle 11 = 180-82= 98 degrees (linear pair)

so:

angle 10 = 11 = 12 = 98 degrees (corresponding angles) = 3 = 2 = 1 = 98 degrees (vertical angles)
.


hope you got it
8 0
3 years ago
Which is not an equation of the line that passes through the points (1, 1) and (5, 5)?
nydimaria [60]

Answer:

Any equation of the line that is different from y=x is the solution to the problem.

Step-by-step explanation:

step 1

Find the slope of the line that passes through the points (1, 1) and (5, 5)

m=(5-1)/(5-1)=1

step 2

Find the equation of the line into slope point form

y-y1=m(x-x1)

we have m=1

(x1,y1)=(1,1)

substitute

y-1=(1)(x-1)

y=x-1+1

y=x

therefore

Any equation of the line that is different from y=x is the solution to the problem.

5 0
3 years ago
Angad rolls a fair dice 120 times.<br> How many times would Angad expect to roll an even number?
Luda [366]

Answer:

60 times

Step-by-step explanation:

Since each roll has a 50% chance of rolling an even number

50% of 120 is 60

4 0
4 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!
Nataly [62]
Hello.

Firstly, let's isolate x on the equation:

\mathsf{f(x) = 3x + 3} \\ \\ \mathsf{y = 3x + 3} \\ \\ \mathsf{-3x = -y + 3} \\ \\ \mathsf{x = \dfrac{-y + 3}{3}}

Now, we can replace 'x' for 'y' and vice-versa:

\mathsf{f^{-1}(x) = \frac{-x + 3}{3}`}

Hope I helped.
4 0
3 years ago
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