All categories

4 years ago

How to find the sector area

Mathematics

1 answer:

Reptile [31]4 years ago

7 0

The sector area is = pi * r^2 (circumference/360). Do the work inside the () first and then multiply by pi r^2

You might be interested in

How do you solve 5(r+9)−2(1−r)=1<br> need quickly

RUDIKE [14]

Answer:

r= -6

Step-by-step explanation:

expand and get

5r+45-2+2r=1

7r+43=1

7r=1-43

7r=-42

r=-6

5 0

2 years ago

Find the point slope equation fir the line that passes through the points (-6,24)(5,-31)

romanna [79]

Answer:

The equation of the line is y -24 = -5(x + 6)

Step-by-step explanation:

To find the equation of this line, we first need to find the slope. To do that, we use the slope equation.

m(slope) = (y2 - y1)/(x2 - x1)

m = (-31 - 24)/(5 - -6)

m = (-31 - 24)/(5 + 6)

m = -55/11

m = -5

Now that we have the slope, we can use it and either point in point-slope form.

y - y1 = m(x - x1)

y - 24 = -5(x - -6)

y - 24 = -5(x + 6)

3 0

3 years ago

Which best describes the function represented by the data in the table? linear with a common ratio of 2 linear with a common fir

RoseWind [281]

Answer:

linear with a common first difference of 2

Step-by-step explanation:

If this is linear, the common first difference, or slope, will be the same throughout the entire table.

The formula for slope is

For the first set of points, we have:

m=(0--2)/(-2--3) = (0+2)/(-2+3) = 2/1 = 2

For the second set of points, we have:

m = (4-0)/(0--2) = 4/(0+2) = 4/2 = 2

For the third set of points, we have:

m = (12-4)/(4-0) = 8/4 = 2

The rate of change, or slope, is constant; this makes the function a linear function with a common first difference of 2

Hope it helps

5 0

3 years ago

Read 2 more answers

If the 4th term of an A.P is 11 and sum of 4th and 5th term is 25. Find the common difference?

ira [324]

Answer:

$3$

Step-by-step explanation:

4th term+5th term = $25$

5th term = $x$

4th term = $11$

$11+x=25$

$x=25-11$

$x=14$

5th term= $14$

Common difference = 5th term - 4th term

$14-11$

$=3$

8 0

4 years ago

Colin invests £2350 into a savings account. The bank gives 4.2% compound interest for the first 4 years and 4.9% thereafter. How

Rzqust [24]

Answer:

£3692

Step-by-step explanation:

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

Where,

A = future value

P = principal = £2350

r = interest rate = 4.2% = 0.042

n = number of periods = 1(annual)

t = time = 4 years

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

= 2350(1 + 0.042/1)^1*4

= 2350(1 + 0.042)^4

= 2350(1.042)^4

= 2350(1.5789)

= 2770.42

A = £2770.42

Total years = 10

Remaining years = 10 - 4

= 6 years

Remaining 6 years

P = £2770.42

r = 4.9% = 0.049

n = 1

t = 6

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

= 2770.42(1 + 0.049/1)^1*6

= 2770.42(1 + 0.049)^6

= 2770.42(1.049)^6

= 2770.42(1.3325)

= 3691.59

A = £3691.59

Approximately £3692

6 0

3 years ago