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ira [324]
3 years ago
6

PLEASE HELP WITH BOTH WILL CROWN BRAINLIEST !!!

Mathematics
1 answer:
jekas [21]3 years ago
7 0
23)
the ring has a radius of 6mm and is 2 mm wide, so it has an outer ring at 7mm and an inner one at 5mm
to get the area subtract the inner ring from the outer, because of the hole:
outer=7²*π=49π
inner=5²*π=25π
ring area=outer-inner=49π-25π=24π= option C

24)circumference of a circle is c=2rπ

for the larger one: 2*20*π=40π
smaller one:2*15*π=30π

distance the larger wheel moves in 30 revolutions:
circumference*30=40π*30=120 π

revolutions of the smaller wheel by dividing the distance with the circumference:
120π/30π=40 revolutions=option H
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Anyone good at rationals
Lyrx [107]
That would be the third choice.  
pi is non repeating and it continues without bounds ( for ever!!)
7 0
4 years ago
Set A={1,2,3,4,5,6} two numbers from set A are selected at random without replacement and their sum recorded how many different
wolverine [178]
The minimum sum is 3 and the maximum is 11. So there are 9 different possible sums.
There are 30 ways to get these 9 different sums.
The table below shows all outcomes.

1 2 3 4 5 6
———————————-
1 | X 3 4 5 6 7
2 | 3 X 5 6 7 8
3 | 4 5 X 7 8 9
4 | 5 6 7 X 9 10
5 | 6 7 8 9 X 11
6 | 7 8 9 10 11 X
6 0
3 years ago
Principle: $6500 Rate: 3%
Nikitich [7]

Answer:

Step-by-step explanation:

A)Initial amount deposited into the account is $6500 This means that the principal is P, so

P = 500

It was compounded daily. This means that it was compounded 360 times in a year. So

n = 360

The rate at which the principal was compounded is 3%. So

r = 3/100 = 0.03

It was compounded for 5 years. So

t = 5

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. Therefore

A = 6500 (1+0.03/360)^360×5

A = 6500 (1+0.00008333333)^360×5

A = 6500 (1.00008333333)^1800

A = $7551.70

B) The interest earned is Total amount earned - principal. It becomes

7551.7 - 6500 = $1051.7

6 0
4 years ago
A rectangular prism with a volume of 4 cubic units is filled with cubes with side-lengths of 1/3 unit. How many 1/3 cubes does i
NeTakaya

Answer: 192 cubes

Step-by-step explanation:

You would divide 3 cubic units by 0.015625 cubic units

6 0
3 years ago
Read 2 more answers
Simplify 56/10 or reduce
11111nata11111 [884]
The improper fraction is 28/5. The mixed number is 5 3/5
4 0
3 years ago
Read 2 more answers
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