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12-8: Practice Buddy: Independent Practice; Problem Solving
12.8.1P-9
Question He
Marco biked 700 meters on Friday. On Saturday, he biked 3 kilometers. On Sunday, he biked 4
kilometers, 500 meters. How many kilometers did Marco bike over the three days?
Marco biked 42000000 kilometer(s) over the three days.
(Type a whole number or a decimal.)
Answer:
858
Step-by-step explanation:
Answer:
Step-by-step explanation:
The ways we can get "1 counter to be white out of 2 draws" is:
1. If 1st one taken out is white and next one different color, and
2. If 2nd one taken out is white and 1st one different color
In probability, AND means MULTIPLY and OR means ADD
Here, we are actually looking for ways of 1st one white, next one different OR first one different and next one white. Let's find them separately.
1. If 1st one taken out is white and next one different color
there are 6 white and 10 total, so 1st one white is 6/10
not replaced, so now there are 9 total and 4 of them are different,so different probabililty is 4/9
We multiply these two to get: 6/10 * 4/9 = 4/15
2. If 2nd one taken out is white and 1st one different color
probabilty 1st one different color is 4/10 since 4 are different and we have total of 10
since not replaced, now we have 9 total and still 6 white.
probability of white in 2nd draw is 6/9
We multiply these two to get: 4/10 * 6/9 = 4/15
Now we add these 2 as stated earlier, so 4/15 + 4/ 15 = 8/15
Answer:
Step-by-step explanation:
4×^2×+1=0
Answer:
Either x = + i/2 or x = i/2 is the solution for the given quadratic equation.
Step-by-step explanation:
Here, the given quadratic equation is:
Now, comparing the given equation with standard Quadratic Form,
we get,a = 4, b =0 and c = 1
Now, the Quadratic Formula is given as:
So, here the solution for the given expression is:
Hence, either x = + i/2 or x = i/2 is the solution for the givenquadratic equation.