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3 years ago

2/3 < 1/5 is it true

2 answers:

7 0

No. Think of it as having 2 pies. The first pie is cut into 3 equal pieces, and the second pie into 5. Having more pieces means each piece is smaller. So 2/3 is way bigger than 1/5. Does that make sense? Let me know if you need any more help :)

saveliy_v [14]3 years ago

7 0

It is wrong..
2/3>1/5

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3 years ago

Engineers want to design seats in commercial aircraft so that they are wide enough to fit 9090% of all males. (Accommodating 1

Molodets [167]

Answer:

Hip breadths less than or equal to 16.1 in. includes 90% of the males.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14.5

Standard Deviation, σ = 1.2

We are given that the distribution of hip breadths is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10.

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 14.5}{1.2})=0.10$

$= 1 -P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.10$

$=P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.90$

Calculation the value from standard normal z table, we have,

$P(z < 1.282) = 0.90$

$\displaystyle\frac{x - 14.5}{1.2} = 1.282\\x = 16.0384 \approx 16.1$

Hence, hip breadth of 16.1 in. separates the smallest 90% from the largest 10%.

That is hip breaths greater than 16.1 in. lies in the larger 10%.

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3 years ago

In the year 2010, a company made $3.2 million in profit. For each

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Answer:

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2 years ago

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4?

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3 years ago

Alex $8000 in a savings account that earns 3.25 % annually. How much will he earn in interest in 6 months?

kotegsom [21]

<h3>Answer: $130</h3>

=======================================================

Explanation:

I'm assuming the bank is using simple interest (instead of compound interest).

If so, then,

i = P*r*t

i = 8000*0.0325*0.5

i = 130

The amount of interest is $130

In the formula above, I used

P = 8000 = amount deposited
r = 0.0325 = annual interest rate in decimal form
t = 6/12 = 0.5 years, which means you don't use t = 6. We don't use t = 6 because the interest rate is on an annual basis, and not a 6-month basis.

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2 years ago