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3 years ago

What is the circumference of the semicircle

Mathematics

2 answers:

deff fn [24]3 years ago

5 0

Answer:

this answer is attached to the picture

Olin [163]3 years ago

3 0

Answer:

$12.56m$

Step-by-step explanation:

$\frac{180}{360} \times 2\pi \: r \\ \frac{1}{2} \times 2 \times \pi \times 4 \\ = 12.56m$

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2+2= what +6 HA they cant repo this so u guys can get points

Rzqust [24]

Answer:

Step-by-step explanation:

2+2=4

4+6= 10

5 0

2 years ago

Read 2 more answers

Look at the picture and if you answer this thank you.

Reika [66]

The table of the tolls for Henderson is the direct variation since the cost is proportional to the miles traveled.

8 0

3 years ago

Solve the following sysyem of equations by the substitution method. 5x+y=8 3×+y=8

meriva

$5x+y=8\\
3x+y=8\\\\
y=-5x+8\\
3x+y=8\\\\
3x-5x+8=8\\
-2x=0\\
x=0\\\\
y=-5\cdot0+8\\
y=8\\\\
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2 years ago

The prime cost of an article was four times the value of material used. The cost of raw materials was increased in the ratio 3 :

jenyasd209 [6]

Answer:

Step-by-step explanation:

The prime cost = 4 times the value of material used

Former Prime cost = 540

Value of material = 540 / 4 = Rs. 135

Since ;

Prime cost = raw material + wages

540 = 135 + wages

Wages = 540 - 135

Wages = 405

Increase in raw material ; 3 : 4

New cost of raw materials = (4/3) * 135 = 180

Decrease in wage ; 4 : 5

New wage = 4/5 * 405 = 324

New prime cost :

180 + 324

= 504

3 0

2 years ago

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $13 monthly fee

Tpy6a [65]

Answer:

With 250 minutes of calls the cost of the two plans is the same

Step-by-step explanation:

We must write an equation to represent the cost of each call plan.

For the first plan

Monthly fee

$ 13

Cost per minute

$ 0.17

If we call x the number of call minutes then the equation representing the cost c for this plan is:

$c = 13 + 0.17x$

For the second plan

monthly fee

$ 23

Cost per minute

$ 0.13

If we call x the number of call minutes then the equation representing the cost c for this plan is:

$c = 23 + 0.13x$

To know when the cost of both plans are equal, we equate the two equations and solve for x.

$13 + 0.17x = 23 + 0.13x\\\\0.17x -0.13x = 23-13\\\\0.04x = 10$

$x = \frac{10}{0.04}$

$x = 250\ minutes$

With 250 minutes of calls the cost of the two plans is the same: $55.5

3 0

2 years ago