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denis-greek [22]
4 years ago
12

Find the perimeter of a circle whose radius is 3.5cm. (Take pi = 22/7)

Mathematics
1 answer:
mrs_skeptik [129]4 years ago
5 0

Answer:

P = 44

Step-by-step explanation:

The formula for the perimeter (circumference) of a circle is;

C = πd

C = 2πr

C = 2π (3.5)2

C = 2π7

C = 2 * 22/7 * 7

C = 2 * 22

C = 44

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6. (15 points) Lucy can mow her yard in 3 hours and 15 minutes. Her brother Will
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Answer:

1 hour 56 minutes

Step-by-step explanation:

Given :

Time taken by Lucy = 3 hours 15 minutes = 3.25 hours

Time taken by brother = 4 hours 45 minutes = 4.75 hours

Rate = 1 / time taken

Lucy's rate = 1 / 3.25

Brother's rate = 1 / 4.75

Combined rate = Lucy's rate + brother's rate

Combined rate = 1/3.25 + 1/4.75

Combined rate = 0.5182186

Time taken if they work together = 1/ combined rate

= 1 / 0.5182186

= 1.9296 hours

= 1 hour (0.9296 * 60) minutes

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3 0
3 years ago
Help plsss Show me the work plsss
velikii [3]

Answer:

a) y = 6x - 3

b) 1/3y = 2x -1

The first thing you need to do is isolate (y) in the second equation

3 x (1/3y) = 3 x (2x - 1)

y =6x - 3

After isolating (y) in equation b they end up being the same.

Graphing:

In order to graph this, you have to make the first point at (0, -3) since this is the Y-intercept of the equation.

In order to graph the other points, you must move 6 units up and 1 unit to the right. Or vise versa If you need a visual I'll gladly link one.

5 0
3 years ago
The graphs above are of the lines y = -x+2 and y=x+1. The point of intersection of the linear equations is
Reil [10]

See below

\\ \sf\Rrightarrow y=-x+2--(1)

\\ \sf\Rrightarrow y=x+1--(2)

Now

\\ \sf\Rrightarrow -x+2=x+1

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\\ \sf\Rrightarrow x=0.5

Put in eq(2)

\\ \sf\Rrightarrow y=0.5+1

\\ \sf\Rrightarrow y=1.5

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8 0
2 years ago
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped with a mean of 61 ounces and a standard
meriva

Answer:

\pink{\bigstar} \small\underline{\boxed{\bf\green{ \dfrac{1}{v}  -  \dfrac{1}{u} =  \dfrac{1}{f}  }}}

7 0
3 years ago
Plz help i will give branlyist to first right answer
RideAnS [48]
P = (2.5,0)
T=(-1.5,-1)
Point R is located (1.5 -2.5)
5 0
3 years ago
Read 2 more answers
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