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IceJOKER [234]
3 years ago
10

Can help me complete this problem please :c

Mathematics
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

If an exact answer is requested, I would use 3.5 * pi

Step-by-step explanation:

The area of a sector that has the center angle  as the apex is

Area = theta/360 * pi * r^2

Area = 140/360 * pi * r^2

Area = 7/18 * pi * 3^2

Area = 7/18 * pi * 9

Area = 7/2 * pi

Area = 3.5 * pi

motikmotik3 years ago
3 0

Answer:

A = \dfrac{7}{2}\pi~cm^2

Step-by-step explanation:

There is a formula for the area of a sector given the radius and the angle measure.

A = \dfrac{n}{360^\circ}\pi r

n = angle measure

r = radius

A = \dfrac{140^\circ}{360^\circ}\pi \times (3~cm)^2

A = \dfrac{14}{36}\pi \times 9~cm^2

A = \dfrac{7}{18}\pi \times 9~cm^2

A = \dfrac{7}{2}\pi~cm^2

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What is the value of x in the equation 2.5(6x-4) = 10+4(1.5+0.5x)?
Phoenix [80]

Answer:

Step-by-step explanation:

As the equation is given in the question as follows.

2.5(6x-4)=10+4(1.5+0.5x)

open the bracket

2.5 × 6x - 2.5 × 4 = 10 + 4 × 1.5 + 4 ×0.5x

15x - 10 = 10 + 6 + 2x

15x - 2x = 16 + 10

13x = 26

x = 2

6 0
2 years ago
Which number line shows the solution set for |p-3|=9?
Mademuasel [1]

Answer:

Option b

p = -6 or p = 12

Step-by-step explanation:

The absolute value is a function that transforms any value x into a positive number.

Therefore, for the function f(x) = |x|  x> 0 for all real numbers.

Then the equation:

|p-3| = 9 has two cases

(p-3) = 9    if h > 3  (i)

-(p-3) = 9    if h < 3 (ii)

We solve the case (i)

p = 9 + 3\\p = 12

We solve the case (ii)

-p +3 = 9\\p = 3-9\\p = -6

Then the solution is:

p = -6 or p = 12

3 0
3 years ago
Solve for k.
Alex Ar [27]

k= 4/9 or 0.444 in decimal form.

hope this helps!

5 0
2 years ago
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What is 7 over 20 as a percentage
expeople1 [14]
7/20) * 100%
= 35%
= 0.3
4 0
2 years ago
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a line in the Cartesian plane passes through the points (1,3) and (5,4) what is the slope of the line?
Ymorist [56]
The slope of the line is 3
5 0
3 years ago
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