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Anastaziya [24]
3 years ago
8

PLZ HELP ASAP AREA OF A SECTOR

Mathematics
1 answer:
const2013 [10]3 years ago
4 0
The fraction of a circle represented by the shaded region is:
 S '/ S = ((8/5) * pi * r) / (2 * pi * r)
 Rewriting we have:
 S '/ S = ((8/5)) / (2)
 S '/ S = 8/10
 S '/ S = 4/5
 Then, we can make the following rule of three:
 (64/5) pi -------> 4/5
 x ----------------> 1
 Clearing x we have:
 x = ((1) / (4/5)) * ((64/5) pi)
 Rewriting:
 x = (5/4) * ((64/5) pi)
 x = (5/4) * ((64/5) pi)
 x = 50.24
 Answer:
 
The area of the complete circle is:
 
x = 50.24
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vladimir1956 [14]

Answer:

47 degrees

Step-by-step explanation:

total degrees in a triangle is 180

since this is a right triangle there is a 90 degree in there and it also gives the 43 degree

subtract 90 and 43 from 180 and you get 47

3 0
3 years ago
What is the least common multiple of 420 and 196?
maks197457 [2]

2940. To find LCM, listing the multiples may help. Then you will easily be able to view them and circle when you find a common one. :)
4 0
3 years ago
Read 2 more answers
Calculate the product using partial products.
GrogVix [38]
7,680
To my knowledge, but if someone else answers, maybe trust them
3 0
3 years ago
Hello! Please help.
valina [46]

1 -

3 cups left.

2-

David biked  a total of 158 miles (option C)

Why?

- First exercise:

To solve the problem we need to consider that for each 1/2 cup of cornmeal, we will have 6 corn muffins.

So, calculating we have:

TotalMuffins=24=4*6\\\\UsedCups=\frac{1}{2}*4=2Cups

We can see that, if each 1/2 cups can give us 6 corn muffins, 2 cups can give us 24 corn muffins.

CupsLeft=5cups-2cups=3cups

Hence, there are 3 cups left.

- Second exercise:

We can solve the problem by multiplying or adding the fractions according to the number of dots assigned to each one.

So, calculating we have:

FirstDay=10miles*2=20miles\\SecondDay=10\frac{1}{2}miles=10.5miles\\ThirdDay=11miles*3=33miles\\FourthDay=11\frac{1}{2}miles*4=11.5miles*4=46miles\\FifthDay=12miles*3=36miles\\SixthDay=12\frac{1}{2}miles=12.5miles

Total=20miles+10.5miles+33miles+46miles+36miles+12.5miles\\Total=158miles

Hence, we have that David covered a total 158 miles. (Option C)

Have a nice day!

5 0
3 years ago
Read 2 more answers
The yield of strawberry plants depends on the amount of fertilizer fed to the plants. Agricultural research shows that an acre o
kifflom [539]

Answer:

792\ \text{pounds}

Step-by-step explanation:

x_1=70 cubic feet of fertilizer is used in y_1=770 pounds of strawberries

x_2=90 cubic feet of fertilizer is used in y_2=990 pounds of strawberries

x=72 cubic feet of fertilizer is used

Linear interpolation is applied

y=y_1+\dfrac{(x-x_1)(y_2-y_1)}{x_2-x_1}\\\Rightarrow y=770+\dfrac{(72-70)(990-770)}{90-70}\\\Rightarrow y=792\ \text{pounds}

72 cubic feet of fertilizer will yield 792\ \text{pounds} of strawberries.

5 0
2 years ago
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