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icang [17]
3 years ago
5

A certain alloy contains 5.25% copper. How much copper is there in a piece weighing 200 pounds?

Mathematics
2 answers:
Rasek [7]3 years ago
5 0
D that one was easy just ask for any other help


dalvyx [7]3 years ago
4 0
I'm sure the answer is d

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Engineers want to design seats in commercial aircraft so that they are wide enough to fit 95​%of all males.​ (Accommodating 100%
Anarel [89]

Answer:

Upper P95 = 16.21in

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 14.4, \sigma = 1.1

Upper P 95

This is the 95th percentile, which is X when Z has a pvalue of 0.95. So X when Z = 1.645.

Then

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 14.4}{1.1}

X - 14.4 = 1.1*1.645

X = 16.21

Upper P95 = 16.21in

3 0
3 years ago
Sara goes to a furniture store to buy a dining set, end tables, and a loveseat. She sees a lamp for $40 and an end table for $62
BaLLatris [955]

Answer:

$1191.60

Step-by-step explanation:

<u>Option 1:</u>

Leather Loveseat

1200 plus 2% extra charge and NO TAX

What is 2% of 1200??

0.02 * 1200 = 24

So total price = 1200 + 24 = $1224

<u>Option 2:</u>

Lush Blue Loveseat and Lamp

Lush Blue loveseat is 980 + 17% tax, that would be worth 980 + (0.17)(980) = $1146.6

and

lamp is worth 40 with 12.5% tax, that would be worth 40 + (0.125)(40) = $45

Total cost = 1146.6 + 45 = $1191.6

2nd option is cheaper, so that would cost $1191.60

3 0
3 years ago
An angle that measures 48° is called
zvonat [6]
Any angle that measures less than 90 degree is known as "Acute angle"

In short, Your Answer would be: "Acute Angle"

Hope this helps!
3 0
3 years ago
Read 2 more answers
Caleb has 550 candy bars and eats 2 a day. Robert has 850 candy bars and eats 6
Alex17521 [72]

Answer:

B. 550 - 2x > 850 - 6x

Step-by-step explanation:

7 0
3 years ago
Find the volume of a cylinder that has a radius of 11 m and a height of 9 m.
hjlf

Answer:

The volume would be 3,421.19m

7 0
3 years ago
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