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3 years ago

In a club there are 7 boys and 8 girls.write the ratio of boys to girls in 3 different ways

Mathematics

1 answer:

torisob [31]3 years ago

3 0

Answer:

8:7

8 to 7

8/7

3 ways yep

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At a certain college, the probability that a student attends full-time is 0.320 and the probability that the student attends par

IRISSAK [1]

Sorry i really don't know the answer.......................................................

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3 years ago

The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher

ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340$

Thus, the correct answer is

Option D) 340

7 0

3 years ago

An 8 pack of light bulbs cost $22.40 what’s the unit price

alekssr [168]

Answer:

$179.20

Step-by-step explanation:

<u>Hope this helps</u>

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2 years ago

Read 2 more answers

Sandy has 28 pencils and 72 erasers. She wants to make the greatest number of bags that have the same number of pencils and eras

aalyn [17]

Answer:

she can make a maximum of 4 bags.

peach bags containing 7 pencils and 18 erasers.

Step-by-step explanation:

find all the factors each numbers are divisible by:

28 => 1, 2, 4, 7, 14, 28

72 => 1, 2, 3, 4, 8, 9, 18, 24, 36, 72

choose the maximum common denominator.

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3 years ago

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If, for all x, f'(x)=(x-2)^4(x-1)^3, it follows that funtaion f has

Elenna [48]

Answer:

We say that f(x) has an absolute (or global) minimum at x=c if f(x)≥f(c) f ( x ) ≥ f ( c ) for every x in the domain we are working on. We say that f(x) has a relative (or local) minimum at x=c iff(x)≥f(c) f ( x ) ≥ f ( c ) for every x in some open interval around x=c .

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3 years ago