Answer:
r = 26
Step-by-step explanation:
C = 2 π r
163.28 = 2 (3.14) (r)
163.28 / 2 / 3.14
26 = r
There is a 1/2 chance of landing heads.
There is a 3/6 or 1/2 chance of landing on an even number (2,4, or 6)
1/2*1/2= 1/4
The probability of landing heads and an even number is 1/4.
Answer:
3. is 4x-16
5. is 4x+15
Step-by-step explanation: Eliminate redundant parentheses(−10)+(3−6)(x-10)+(3x-6)(x−10)+(3x−6)−10+3−6
<span>Number of values = 5 (There are 5 values given)
Mean = (82 + 44 + 67 + 52 + 120)/5 = 73
Variance = (1/5) [(82-73)^2 + (44-73)^2 + (67-73)^2 + (52-73)^2 + (120-73)^2] = 721.6
Standard deviation = sqrt (721.6) = 26.86</span>
Intersecting the x axis means y is 0
plug y=0 in the equation and solve for x to see if there are real solutions
x^2-10x+0+0=-30
x^2-10x+30=0
this cannot be factored, so let's see if b^2-4ac is bigger than 0
10^2-4*1*30=-20
so the solutions for this equation are not real numbers, therefore the answer is no.
