All categories

2 years ago

Find the sum of the interior angle measures of a convex 21-gon

Mathematics

1 answer:

Advocard [28]2 years ago

7 0

Answer:

3420°

Step-by-step explanation:

The sum of angle measures of an n-gon is ...

angle total = (n-2)×180°

For n = 21, the angle total is ...

21-gon total = (21 -2)×180° = 3420°

You might be interested in

Two thirds a number x plus 3 is 6

S_A_V [24]

2/3x+3=6
2/3x=3
x= 3*3/2
x=9/2=4.5

(Mark me the brainliest if this was helpful)

8 0

1 year ago

Can someone help me with theeseeeeeeee

Whitepunk [10]

Wait but that is a test don't you need to look at a book or something insteadt of waiting for the answers

8 0

2 years ago

Read 2 more answers

If $3,000,000 is invested at 6% interest compounded continuously, how much

g100num [7]

Answer:

$24,498,509.74

Step-by-step explanation:

The formula for the value as a function of time is ...

V(t) = P·e^(rt)

Filling in the numbers and doing the arithmetic, we have ...

V(35) = 3,000,000·e^(0.06·35) ≈ 24,498,509.74

Compounded continuously for 35 years, the investment will be worth $24,498,509.74.

3 0

3 years ago

Find the total cost of a 36 month car lease, if: monthly payment = $175 down payment = $1,500 residual value = $10,000

givi [52]

17,800 is correct answer or the third one

3 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 72 cm. The length is 3 more than twice the width What

solmaris [256]

<h3>Solution</h3>

Given :-

Perimeter of rectangle = 72 cm
The length is 3 more than twice the width.

Find :-

Dimensions of rectangle

<h3 /><h3>Explantion</h3>

Using Formula

$\boxed{\underline{\tt{\red{\:(perimeter_{rectang}\:=\:2\times (Length+Width)}}}}$

Let,

Length of Rectangle = x cm
Breadth of Rectangle = y cm

According to question,

==> perimeter of Rectangle = 72

==> 2(x+y) = 72

==> x + y = 72/2

==> x + y = 36_________________(1)

Again,

==> x = 2y + 3

==> x - 2y = 3__________________(2)

Subtract equ(1) & equ(2)

==> y + 2y = 36 - 3

==> 3y = 33

==> y = 33/3

==> y = 11

keep in equ(1)

==> x - 2×11 = 3

==> x = 3 + 22

==> x = 25

<h3>Hence</h3>

Length of Rectangle = 25 cm
Width of Rectangle = 11 cm

<h3 />

7 0

2 years ago