What would f(-5.2) equal if f(x)=[[x]]
1 answer:
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Step-by-step explanation:
1. Abbie's chance to place first is 12÷100 = 0.12
and Becca's chance to place second is 8÷100= 0.08
We can determine the probability that Abbie will place first and Becca will place second because ., Abbie gets more chance than Becca (0.12 -0.08 =0.04) to get first place
2. Danna's chance to place first is P(A) = 48÷100 = 0.48
Francine's chance to place second is P(B) = 32 ÷100 = 0.38
The probability that Danna or Francine wins the race is
= P(A or B) = P(A) +P(B) - P(A and B)
= 0.48 +0.32 - (0.48× 0.32)
= 0.8 - 0.15 = 0.65
3. Yes .,that Grace's probabilities were wrong Because Grace only informs about the winning chance of Abbie, Becca ,Danna,and Francine.
Grace gives 12% to Abbie and 48% to Danna ., in real Abbie won the first place ., so ., Grace's probabilities were wrong
Answer:
2 sides are or 2.5
2 sides are or 3.6
Step-by-step explanation:
There must be 2 2x+3s and 2 3x+2s
The perimeter is the sum of the sides (it has 4 sides)
2(2x+3) + 2(3x+2) = 4(4x-5)
distributive property
2*2x + 2*3
4x+6
other one
2*3x + 2*2
6x+4
perimeter
4*4x + 4*-5
16x-20
together...
(4x+6) + (6x+4) = 16x-20
add like terms
10x+10 = 16x-20
add 20 to both sides
10x+30 = 16x
subtract 10x from both sides
30 = 26x
divide by 26 on both sides
simplify
Substitute the x value
2 of the sides are 2x+3
so
or 2.5
other sides
or 3.6
That's all I can say for now! Hope this helps and a thank won't hurt! :)