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TiliK225 [7]
3 years ago
9

A lottery game has balls numbered 1 through 15.

Mathematics
2 answers:
posledela3 years ago
7 0

Answer:

7/15.

Step-by-step explanation:

Prob( even number) = 7/15  (as there are 7 even numbers from 1 to 15).

So the required probability is 7/15 + 1/15 = 7/15.

pashok25 [27]3 years ago
3 0

Possible numbers = 2,4,6,8,10,12,14 = 7

total numbers = 15

probability = 7/15 or

46.66 percent

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leva [86]

Answer:

i pray you get it right lol

Step-by-step explanation:

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8 0
3 years ago
Pls answer “b” correctly and I will mark it has brainlist
Phoenix [80]
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8 0
3 years ago
Determine the projection of w onto u.
irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

u=9i-6j

v=-3i-2j

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=\frac{a\cdot b}{\mid b\mid^2}b

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Using the formula

The projection of w on to u

=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

4 0
3 years ago
Read 2 more answers
A researcher is conducting an experiment to test a new vitamin supplement. The researcher has recruited 8
Tju [1.3M]

Answer:

(C) 32

Step-by-step explanation:

This is a problem of Permutation and Combination, not probability.

This clarification is given because most questions like this are on Probability and Statistics.

The researcher has recruited 8  participants and must divide them into two groups of 4 people each.

So there's:

GROUP A - Placebo Group

GROUP B - Experimental Group

Since the experiment is on humans - distinct objects - they will have distinct identities. Assume the 8 participants are lined up according to identities 1,2,3,4,  5,6,7,8

[2+2+2+2  +2+2+2+2] × 2 = 16×2 = 32

4 0
3 years ago
the cube root of 7201 is between which pair is integers? 84 and 85 , 36 and 37 , 24 and 25 , 19 and 20​
scoundrel [369]

Answer:

19 and 20

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19^3 = 6859

20^3 = 8000

7201 is between the two numbers.

4 0
3 years ago
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