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mestny [16]
4 years ago
13

Sally is completely unprepared for a three-question multiple-choice pop quiz, so she randomly guesses the answer to each questio

n. If each question has four choices, then what is the probability that she gets at least two questions correct?
Mathematics
1 answer:
timurjin [86]4 years ago
8 0
There are 3 questions and 4 choices.
So she has 1/4 of a chance of getting each question right.
Now if you multiply all her odds 1/4 x 1/4 it would become 1/16. Therefore she has 1/16 of a chance of getting a 2/3
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The speed of a motorcycle increases from 10km/hr to 50km/hr in 9 seconds. What is its acceleration?
Fynjy0 [20]

Answer:

6.7 km/sec

Hope this helps

6 0
3 years ago
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Ray Of Light [21]

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7 0
4 years ago
I need help With this cuestión
DiKsa [7]
You are correct. 8 divided by 24 is 3. :)
3 0
3 years ago
Read 2 more answers
Part B
lianna [129]

Answer:

Soccer: 19 Males

Basketball: 29 females

Total: 40 males, 60 females

Step-by-step explanation:

                         MALES     FEMALES   TOTAL

SOCCER        ║     19     ║      31       ║    50   ║

BASKETBALL║     21      ║      29      ║    50   ║

TOTAL           ║     40     ║      60     ║   100   ║

[OPTIONS ⇒ 19, 29, 40, 60]

<u>SOCCER:</u>

x + 31 = 50

50 − 31 = 19

<em>19 males</em>

<em />

<u>BASKETBALL</u>

21 + y = 50

50 − 21 = 29

<em>29 females</em>

<em />

<u>TOTAL:</u>

F: 31 + 29 = 60

M: 19 + 21 = 40

60 + 40 = 100

<em>60 females </em>

<em>40 males</em>

6 0
3 years ago
Plz help me I don’t get this
Svetlanka [38]

Set up a proportion, cross multiply, and solve.

\frac{7.2}{4} =\frac{x}{3}

3(7.2) = 4(x)

21.6 = 4x

5.4 = x

7 0
3 years ago
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