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Semmy [17]
3 years ago
6

Help&EXPLAIN ••••••••••••••••••• Help plz

Mathematics
1 answer:
Stolb23 [73]3 years ago
3 0

Answer:

diameter = 2.5 feet

Step-by-step explanation:

Circumference of a circle is given as C = πd

Circumference of the tree trunk = 7.85 ft

π = 3.14

Diameter of the tree trunk = d

Thus:

7.85 = 3.14*d

Divide both sides by 3.14

7.85/3.14 = 3.14*d/3.14

2.5 = d

d = 2.5 ft

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It will take about 16.66 months for the investment to double.
Hope this helps.
5 0
3 years ago
( 4.2 + 3 ) + (5.7 x - 2 ) + ( 5 — 2.6 x)
White raven [17]
Answer is 10.2 + 3.1x
Solve by combining like terms

5 0
3 years ago
In the book,the distance between two planets is given as 4.07×10^¹² kilometres. The speed of light is 1.1×10^⁹ kilometres per ho
Sphinxa [80]

Answer:

3700hours

154days

Step-by-step explanation:

Speed can be defined as the distance cover per time, it can be expressed as

Speed= distance/ time........eqn(1)

Given:

distance between two planets= 4.07×10^¹²

speed of light = 1.1×10^⁹ kilometres per hour

Time= ??

Then substitute the values into equation (1) we have

Speed= distance/ time

1.1×10^⁹ kilometres per hour= 4.07×10^¹²kilometre/ time

Cross multiply, we have

Time= (4.07×10^¹²kilometre) /(1.1×10^⁹ kilometres per hour)

Time= 3700hours.

To convert to day, we know that

60 minute= 1hour

24hour=1day

Time= (3700hour×1day)/24hour

Time= 154days approximately.

Hence, the time taken for light to travel from one of these planets to the other is 154days or 3700hours

7 0
3 years ago
Clark's weight is increasing these days if it's weight increases by 2 kg mg every 4 months how many kilograms of weight will he
ycow [4]

Answer:

8kg

Step-by-step explanation:

4m=2kg

16m=?

=16m×2

=32

=32÷4

=8kg

Hope this will help ya!

6 0
3 years ago
One method of estimating is to
nataly862011 [7]
One way of estimating is to Round the numbers to the nearest whole number.

Hope this helps!
3 0
3 years ago
Read 2 more answers
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