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Nastasia [14]
3 years ago
13

Please answer number 15 and 17​

Mathematics
1 answer:
il63 [147K]3 years ago
7 0

Answer:

15 ans rln 1 and 17 ans rln3

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John puts the letters of the word science on pieces of paper and puts the pieces in a bag. he draws two letters without looking.
WITCHER [35]
This is the concept of probability and statistics, to solve the question we proceed as follows;
given that the word the word science has 7 letters;
the probability of selecting a c in the first draw will be:
P(selecting c in first draw)=2/7
Probability of selecting a c on the second draw will be:
P(selecting a c in second draw)=1/6
since these two events are mutually independent, the probability of selecting c twice will be:
P(selecting C twice)=1/6*2/7
=1/21
 
6 0
3 years ago
How to turn 0.02 into a fraction
nexus9112 [7]
You take it and put the top number on the top and then sense it is zero.zerotwo hundrenthes it would be 2/100 or simplified it would be 1/50
6 0
4 years ago
Sam left for school at 8:00, walking at a speed of 2 mph. Soon after, his father discovered that Sam left behind his project tha
timofeeve [1]
We use the formula d = rt  where d = distance, r = rate, t = time

Equation for Sam:
d=( r_{1})(t)
d = 2t

Equation for Sam's father:
d =  (r_{2})(t - 0.33)
d = (12)(t - 0.33)
d = 12t - 4

Since Sam and his father have the same distance from their home to Sam's school, then
2t = 12t - 4
4 = 12t - 2t
4 = 10t
4/10 = t
t = 0.4 hrs or 24 mins

Sam travel 24 mins from home to school and his father travel 4 mins from home to school. Therefore, it was about 8:24 when Sam's father give the project to Sam.
7 0
4 years ago
Please help me ASAP! THANKS!!!
Lera25 [3.4K]
Just a couple of rules are needed to solve this.
a) When secants cross inside a circle, the measure of the angle where they cross is the average of the measures of the intercepted arcs.

b) When secants meet outside the circle, the measure of the angle where they meet is half the difference of the measures of the intercepted arcs.

c) As a corollary to the first rule, if the secants meet on the circle, the angle where they meet is half that of the intercepted arc (because the other angle in the averge is zero).

7 0
4 years ago
Raymar ate 1/4 of a pan of brownies. His brother Kalen ate 1/4 of the rest of the pan of brownies. What part of the whole pan di
weqwewe [10]
Raymar ate 1/4. That leaves 3/4 left. Kalen ate 1/4 of the 3/4 left. We need to find how much 1/4 of 3/4 is, so we have to divide 3 by 4. To make this easier to solve, we need to change the form of the fractions to make it in sixteenths instead of fourths. So Raymar ate 4/16 leaving 12/16 left and Kalen ate 1/4 of the 12/16 left.This means we can divide 12 by 4 and get 3. Kalen ate 3/16 of the entire pan. Or just draw a diagram similar to this.

7 0
3 years ago
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