<h3>One less than the product of four and a number is 11. What is that number ?</h3>
Answer: The number is 3
Step-by-step explanation:
We will call X the number, then 4X - 1 = 11
4X = 11 + 1 =12
X = 12/4 =3
This is the number = 3
Basically it's d because they are all alive hypothetically
Answer:
event A and B are independent because P(A and B) = P(A) x P(B) = 0.15
Step-by-step explanation:
When two events are independent, the probability of both occurring is the product of their separate probabilities, as expressed below;
P(A and B) = P(A) x P(B)
Given;
P(A) = 0.25
P(B) = 0.60
P(A and B) = 0.15
Now, let's check if P(A and B) will be equal to P(A) x P(B)
P(A) x P(B) = 0.25 x 0.60 = 0.15
P(A and B) = P(A) x P(B), thus event A and B are independent.
Answer:
x=4
Step-by-step explanation:
3/4x+ 4 = 7
Subtract 4 from each side
3/4x+ 4-4 = 7-4
3/4x = 3
Multiply each side by 4/3
4/3 * 3/4 x = 3 * 4/3
x = 4
If it is isosceles, than the legs are the same. We will call them X. The formula for the area of a triangle is 1/2 (base * height). But the base and the height are both X. So the area (18) is equal to 1/2 (x * x), or 1/2(x^2). This means that 36 = x^2. Thus, the length of each side is 6 inches. You can check this work by plugging those into the formula for area. You will find that it equals 18.