I Need help with 10 please
2 answers:
The meaning of circumference is to find the distance around a circle or in other words the perimeter of the circle. The circumference of a circle can be calculate by using the formula C=2πr or C=πd.
In this exercise is given that a juice can has a diameter of 2.25 inches, and it is asked to find its circumference. In this problem the diameter of the circle is given, so in this case the formula C=πd would be used, where d represents the diameter.
The circumference of the juice can is 7.065 inches or in other words letter C from the given choices.
In this exercise is given that a juice can has a diameter of 2.25 inches, and it is asked to find its circumference. In this problem the diameter of the circle is given, so in this case the formula C=πd would be used, where d represents the diameter.
The circumference of the juice can is 7.065 inches or in other words letter C from the given choices.
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Answer:
1) .
2)
hence, answer is 7/12.
3) We have to divide £72 in the ratio 2:3:1
the total of the ratio is=2+3+1=6
so on dividing 72 into 6 parts we have 72/6=12
First '2' parts=2×12=24
second '3' part=3×12=36
last '1' part=1×12=12
so dividing £72 in the ratio 2:3:1 is: £24,£36 and £12
4) 39 people out of 65 have blonde hair.
Number of people who do not have blonde hair=65-39=26
percentage people who do not have blonde hair is given by:
Hence, percentage people who do not have blonde hair is 40%
5) 20% of 90= (20/100)×90
=18
Hence, 20% of 90 is 18.
6) Factorise
7) Expand
8)
.
9)
10)
11) x= -4 y=3
and z=4 x-y^3
z=4×(-4)-3^3
z= -43
12)
13)
Hence x= -2
14) 5,10,15,20,....
Hence, nth term is 5n.
15) (63×128)/32.9=245.106.
16) 938×21=19698.