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Gala2k [10]
3 years ago
12

Solve this very important equation.

Mathematics
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

a*b= 0.45

a/b= 0.8

Step-by-step explanation:

You might be interested in
A number from 1-100 is randomly selected. What is the probability that it is a perfect square, given that it is an odd number?
coldgirl [10]
Events:
1 ≤ n ≤ 100
A=x is a perfect square, i.e. x=n^2
B=x is odd, i.e. n is odd
P(A|B)
=P(A∩B)/P(B)   by definition of conditional probability
(reads Probability that the number is a perfect square given that it is odd)

Since there are 10 perfect squares between 1 to 100 (1,4,9,16,25,36,49,64,81,100), out of which 5 are odd {1,9,25,49,81)
So P(A∩B)=5/100
P(B)=probability of odd x  {1,3,5,7,.....95,97,99}
= 50/100=1/2
Therefore 
P(A|B)=(5/100)/(1/2)=1/10

5 0
3 years ago
If the probability of giving birth to a boy is 0.52, what is the approximate probability of giving birth to 4 consecutive boys?
Stolb23 [73]
Probability of giving birth to four consecutive boys  ;

0.52  0.52 * 0.52 * 0.52

= 0.073 ( rounded off)

Thus, the probability to give birth to 4 consecutive boys is 0.073

6 0
3 years ago
42 is what percent of 140
agasfer [191]


42 is 30% of 140

This is evident because, 42÷140=0.3

And you should hopefully know your place values right?

So then we know that 3 is in the10ths place and so to change the decimal to a fraction we get 3/10 which then changed to a percent, is equal to 30.

Long story short, 42 is 30% of 140 :)

4 0
3 years ago
I need help on these questions​
My name is Ann [436]

When dividing fractions, we follow a rule called "Keep, change, flip"

Basically, you keep the first fraction the same, change the sign to a multiplication sign, and flip the second fraction.

2 = 2/1

7 * 1 + 6 = 13

2/1 * 7/13 = 14/13 = 1 1/13

2 divided by 1 6/7 = 1 1/13

3 3/5 = 18/5

2 1/4 = 9/4

18/5 * 4/9 = 72/45 = 8/5 = 1 3/5

3 3/5 divided by 2 1/4 = 1 3/5

4 1/2 = 9/2

2 3/8 = 19/8

9/2 * 8/19 = 72/38 = 36/19 = 1 17/19

4 1/2 divided by 2 3/8 = 1 17/19

3 0
3 years ago
PLEASE HELP, BEEN STUCK FOR AN HOUR!!
pashok25 [27]

Answer: C. 

Both functions are decreasing, but function f is decreasing at a faster average rate on that interval.

Step-by-step explanation:

Let first work out g(x)

When x = 0

g(x) = 75

When x = 1

g(x) = 75( 1 - 50%)

g(x) = 75(0.5) = 37.5

Which is less than 43

With this, we can conclude that:

Both functions are decreasing, but function f is decreasing at a faster average rate on that interval.

6 0
4 years ago
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