Please look at the photo

What percentage of the rectangular sheets of cardboard will be wasted because it is not part of the box and will be discarded wh

irina1246 [14]

Hi Cuppykitty!!

30% I believe because we still have those to rectangles on the side

Hope this helps :)

8 0

3 years ago

Segment DC is a diameter of circle A in the figure below. If angle DAB measures 34 degrees, what is the measure of arc BC?

Greeley [361]

180 - 34 = 146 degrees

6 0

3 years ago

Read 2 more answers

6. Here is an octagon.

alukav5142 [94]

Answer:

a). Yes. Area will be less than 100 square in.

b). Area of octagon = 82 in²

Step-by-step explanation:

From the picture attached,

a). Octagon is inscribed in a square having one side = 10 inches.

Since, octagon is obtained by cutting off the four equal corners of the square,

Area of octagon will be less than the area of the square.

Area of square = (side)²

= 10²

= 100 in²

Therefore, area of octagon will be less than 100 in²

b). Since, corner cut off from the square are equal in shape and area,

Area of one corner (right angle triangle) = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}(3)(3)$

= 4.5 in²

Area of 4 corners = 4.5 × 4 = 18 in²

Area of octagon = Area of square - Area of 4 corners removed

= 100 - 18

= 82 in²

7 0

3 years ago

Nancy Gerald, production control manager at The Open-Pit Furnace Co., has a total of $497.25 deducted from her monthly paycheck

Romashka [77]

Missing portion in question:

Tax rate for Social Security and Medicare for the company The Open-Pit Furnace Co. is not given in the question. Usually these taxes apply on following rate:

Social Security Tax Rate = 6.2%

Medicare Tax Rate = 1.45%

Answer:

$6,500

Step-by-step explanation:

Total deducted amount from her salary was $497.25 i.e. some of the taxes for social security and medicare. If these taxes are on the rate mentioned above, total salary can be calculated.

Total deduction = (6.2%+1.45%) of the salary

497.25=7.65% of the salary

Let the total salary = $x

$497.25=\frac{7.65}{100}*x\\=\frac{497.25*100}{7.65} \\=\frac{49725}{7.65} \\=6500$

So, her monthly salary is $6500

5 0

4 years ago

Suppose the grades of a certain exam are normally distributed with a mean of 72 and a standard deviation of 8. The instructor is

noname [10]

Answer:

The minimum grade a student needs to have to qualify for the bonus points is of 85.16.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 72 and a standard deviation of 8.

This means that $\mu = 72, \sigma = 8$