Step-by-step explanation:
Since the ratio of monthly income to savings of the family is 7:2, we assume that the income be 7t and savings be 2t
Now, we are given that the savings is =Rs 500
So, According to our assumption, 2t=500
⇒t=250
Hence, the income of the family is =7×250=Rs 1750
And the expenditure is =Income−Savings
=Rs 1750−Rs 500
=Rs 1250
Answer:
12.12
Step-by-step explanation:
the formula to find x in this case would be:
______
x=√14^2-7^2
x=√c^2﹣a^2=√14^2﹣7^2≈12.12436
Answer:
The probability of finding five left-handers in the sample is P(x=5)=0.094.
Step-by-step explanation:
We can model this variable with a binomial distribution, with parameters n=46 (sample size) and p=0.170 (the probability that an individual is left-handed).
The probability that k individuals are left-handed in the sample can be calculated as:

Then, the probability of finding five left-handers in the sample is:

Answer:
Step-by-step explanation:
Equation of a line has been given as,
y = -2x + 5
Input-output points lying on the the line are,
x 0 1 2 3
y 5 3 1 -1
Now we can plot these points on the graph and join them to get the line representing the given equation.
(As graph attached)
For a function to be a function there cannot be any x’s repeated. In this case, you’re looking for a function that has an x repeated. The answer is {(1,1),(1,2),(1,3),(1,4)}