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tigry1 [53]
3 years ago
15

A bag contains 45 marbles of various colours. Lena draws 48 times, each time replacing the marble before drawing again. She gets

a total of 16 red marbles. Which is the best prediction of how many red marbles are in the bag?
A) 3

B) 13

C) 15

D) 16
Mathematics
2 answers:
sergiy2304 [10]3 years ago
5 0
I think the answer is c im not sure sorry
Anna11 [10]3 years ago
4 0

Answer:

Your Answer is Option C

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Three people are running for president of a class. The results of a poll indicate that the first candidate has an estimated 37%
lianna [129]

Answer:

0.19

Step-by-step explanation:

The are three candidate running for president and we know that probability of winning for first candidate and the probability of winning for second candidate and we have to find the probability of winning for third candidate

P(C1)=0.37

P(C2)=0.44

P(C3)=?

We know that sum of probabilities is always 1. So,

P(C1)+P(C2)+P(C3)=1

0.37+0.44+P(C3)=1

P(C3)=1-0.37-0.44

P(C3)=0.19

Thus, the probability of winning for third candidate is 0.19.

7 0
3 years ago
PLEASE HELP!!!!!! what is the purpose of arithmetic and geometric sequences?
goblinko [34]

Answer:

An arithmetic sequence has a constant difference between each term. ... A geometric sequence has a constant ratio (multiplier) between each term. An example is: 2,4,8,16,32,… So to find the next term in the sequence we would multiply the previous term by 2.

Step-by-step explanation:

Give me a brainiest, please.

3 0
3 years ago
Plssssssssssssssss help
cluponka [151]

Answer:

EF is the chord of K

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7 0
3 years ago
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Solve the quadratic equations below using the factorization method.
liubo4ka [24]

Answer: omg this is hard

Step-by-step explanation:

4 0
3 years ago
Brandon decided to make his own hand sanitize. To be effective and sanitizer
icang [17]

Answer:

Step-by-step explanation:

The water has to be 100% - 60% = 40%

100% represents both water alcohol (I think that's what you meant).

40% of 250 = 40/100 * 250 = 10000/100 = 100 mL

So 100 mL = water

150 mL = alcohol.

4 0
2 years ago
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