In a survey of students, 80% were girls and 20% were boys. of the girls surveyed, 40% were wearing sneakers. if a surveyed stude
1 answer:
Answer:
Step-by-step explanation:
probability of selecting a girl from students is
probability of girl wearing sneaker from girls is or
hence, probability of selecting a girl wearing a sneaker will be,
⇒ probability = probability of delecting a girl from students × probability of girl wearing sneakers from girls
⇒ probability =
⇒ probability =
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Answer:
13.187 meters
Step-by-step explanation:
Basically, there are 24 meters for every 91 steps:
There are x meters for every 50 steps:
Cross multiply
91x = 1200
Divide both sides by 91 to isolate the variable, x
91x/91 = 1200/91
x = 13.186813
Answer:
C.
Step-by-step explanation:
The zeros of a polynomial are the x-intercepts of the function. To find them, we factor the polynomial and set each factor equal to 0.
This polynomial is already factored so set each to 0 and solve for x.
This means x=-2, 5. Each zero or root has a multiplicity - the number of times the factor occurs. This is also known as the exponent of the factor expression.
(x+5) occurs once since it has exponent 1.
occurs twoce since it has exponent 2.
x=5 mult. 1, x=-2 mult. 2