Answer:
E(X) = $2.5
P(Worst than Average) = 0.072
Step-by-step explanation:
I have solved this problem on paper. (Attached)
8080=6 because there are 6 "0s" or circle shaped objects that make up the number. For example, 8=2 (there are two circles.)
<u>Using the same logic,</u>
1357=0 because there are no circles.
2022=1; there is 1 circle.
1999=3; three circles.
6666=4; there are four circles.
In order to easily picture out the operation involving fractions, let's write it in an algebraic equation. So, the above description is written as
20x⁶/15y⁵ × 5y²/6x⁴
The first thing to do is to simplify the easiest terms: the constants. Just multiply all the constants on the numerator and all the constants on the denominator independently. The simplified constant becomes
(20*5)/(15*6) = 10/9
So, the equation to be solved now is
10x⁶y²/9y⁵ x⁴
So, I also multiplied all the variables in the numerator and denominator independently, just like the constants. Then, you apply the laws of exponents. When you divide terms with exponents of the same value of the base, you subtract the exponent on the numerator minus the denominator. It goes like this:
10/9 * x⁶⁻⁴*y²⁻⁵ = 10/9*x²y⁻³
Now, when the exponent as written to the power of a negative exponent, just simply take its reciprocal to make it positive. So, the final answer is
10x²/9y³ or that is letter D.
Answer:
149,548
Step-by-step explanation:
10,239,548
-10,000,000
-90,000
---------------
149,548
First make the dash an x. Then move over to the other side of the = so it looks like this:
-5=-13-x
You take -13 to the other side of the equal sign so it looks like this:
-5+13=-x
Then:
8=-x or x=-8
Hopefully that makes sense.
