The students pull a token all five school days in one week. Which of the following correctly represents the
probability that a student will not have to turn in
homework exactly two times?
A teacher decides to play a game to collect homework.
Each day, when students walk into class, they select a
token from a bag that contains red and gold tokens. If
the token selected is gold, the student will not have to
turn in their homework; however, if the token selected is
red, they must turn in their homework. The teacher tells
the class that there is a 30% chance of selecting a gold
token
0 0.09
0 0.343
(0.3)3 (0.72
(5).0.3)?(0.7)
(5)(0.3)(0.7)
Tweaks
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ere to search

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Step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

a

step-by-step explanation: