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Finger [1]
3 years ago
10

How would I solve this? I do not get the problem.

Mathematics
1 answer:
Stolb23 [73]3 years ago
8 0
Find the area of the CD. (I used P for pi, too lazy @[email protected])
A=Pr² - Pr²
radius of the small hole in the middle, 0.75cm
radius of the CD, 6cm
A=3.14*6²-3.14*0.75²
A=111.27375cm²
The Approximate area of the CD is 111.27cm²
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It take 6 Pounds of flour to make 36 cakes. How much flour is needed to make 9 cakes?
Natali5045456 [20]

Answer:

54 pounds

Step-by-step explanation:

To find out how much flour is needed to make 9 cakes, we first need to find out how much much flour is needed to make 1 cake. For that, we need to divide 6 by 36. That will give you 6. Now that we know how much flour is needed to make 1 cake, we will just have to multiply 6 by 9 to find out how much flour is needed to make 9 cakes. That will give you 54 pounds, which is your final answer.

4 0
2 years ago
Listed below are the salaries, in $000, for a sample of 15 chief financial officers in the electronics industry.
Tcecarenko [31]

Answer:

a)

Mean = sum of all numbers in dataset / total number in dataset

Mean = 8130/15 = 542

Median:

The median is also the number that is halfway into the set.

For median, we need to sort the data and then find the middle number which in our case is 546. Below is the sorted data

486  516 523  523  529  534  538  546  548  551  552  558  566  574  586

Standard Deviation (SD).  Here X represents dataset and N= count of numbers in data

As per the SD formula, which is Sqrt ( sum (X_i - Meanx(X))/(N-1))

SD= 25.082

2) Formula for coefficient of skewness using Pearson's method (using median) is,

SK = 3* ( Mean (X) - Median(X))/(Standard Deviation) =  3*(542-546)/25.082 = -0.325

3) coefficient of skewness using the software method is also same which is -0.325

4 0
3 years ago
Please answer with steps
Natali [406]
1a. 21/3+32/5
((2*3)+1)/3+((3*5)+2)/5
7/3+17/5
(7*5+17*3)/15
86/15 1b. 2/3+3/5+2/5 (2*5+3*3+2*3)/15 (10+9+6)/15 25/15 5/3 2a. 57/10-22/5 (5*10+7)/10-(2*5+2)/5 57/10-12/5 (57*1-2*12)/10 33/10 2b. 5/12-1/4 (5*1-1*3)/12 2/12 1/6 3 say she has x stamps,she gave 2/9 and 1/5 to her frends so she is left with X-2x/9-x/5 (9*5x-5*2x-9*1x)/45 (45x-10x-9x)/45 26x/45 4. 7/10+1/5 (1*7+2*1)/10 9/10 5. Brick 21/3kg Stone (2*3+1)/3-(1*10+1)/10 7/3-11/10 (7*10-3*11)/30 (70-33)/30 37/30
7 0
3 years ago
during one day, Ashville had a high temperature of 6 degrees Celsius, and a low temperature of -4 degrees Celsius. what is the d
Lynna [10]
The difference is 10 because its asking you to subtract ( 6 - (-4) = 10 ).
8 0
3 years ago
What is the value of 4x^-3y^3 for x = 3 and y=-1?
il63 [147K]

Answer:

− 23 /27

its a fraction

Step-by-step explanation:

4 0
3 years ago
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