The question also states that Lucy has a winning probability of 1/50, which means that she has 1 chance of winning if the total runners were 50. Therefore, there are 49 runners who may be faster than her.
The fact that Lucy is the 50th slowest runner, means that starting from the slowest she is in 50th position, therefore there are 49 runners that are slower than her.
The total number of runners will be the sum of those faster than Lucy, those slower than Lucy and Lucy:
49 + 49 + 1 = 99
There are 99 runners in Lucy's school.
Step-by-step explanation:
<u>From the figure</u> :
Cos 57° = 19.3 / AB
AB = 19.3 / 0.54
<u>AB = 35.74 cm</u>
Answer:
The first one
Step-by-step explanation:
I think, because if you fold it, it will form the shape.
Answer:
1900
Step-by-step explanation:
6500-4600=1900
...........
Answer:
The mistake is the -3 exponent was not applied correctly to the coefficients (the 2 and the 4 in the original question) see image.
Step-by-step explanation:
The exponent rules being used here are applying an exponent to ALL the factors in the numerator (top part) and the denominator (bottom part). It is easier to simplify first. Then the -3 exponent goes on all the factors (the x, the y, and the 2) "Fix" negative exponents by pushing those terms across the fraction bar. Finally, 2^3 is 8. Nothing else can be simplified. See image.