All categories

4 years ago

What is the formula for the sum of interior angles of a regular polygon?

Mathematics

1 answer:

alexandr402 [8]4 years ago

6 0

<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees

</span>

You might be interested in

Martin is saving for a gaming system. The total cost of the gaming system and three games is $325.49. About how much money shoul

aksik [14]

First you would do $325.49 divided by 10 and you would get $32.55. so you would need $32.55 a week.

6 0

4 years ago

What equation could be used to determine 23% of 122?

ArbitrLikvidat [17]

First, convert 23% into a fraction.

23% =

$23 \div 100 = \frac{23}{100}$

Now the expression to determine 23% of 122 is

$\frac{23}{100} \times 122 \\ = ( \frac{23}{100} )(122)$

7 0

3 years ago

Read 2 more answers

A bank loaned out $12,00, part of it at the rate of 9% per year and the rest at 19% per year. If the interest received in one

Crazy boy [7]

Answer:

$7,800 was invested at 9% and $4,200 at 19%.

Step-by-step explanation:

Given that a bank loaned out $ 12,000, part of it at the rate of 9% per year and the rest at 19% per year, if the interest received in one year totaled $ 1,500, to determine how much was loaned at 9% the following calculation must be performed:

12,000 x 0.09 + 0 x 0.19 = 1,080

10,000 x 0.09 + 2,000 x 0.19 = 1,280

8,000 x 0.09 + 4,000 x 0.19 = 1,480

7,900 x 0.09 + 4,100 x 0.19 = 1,490

7,800 x 0.09 + 4,200 x 0.19 = 1,500

Thus, $ 7,800 was invested at 9% and $ 4,200 at 19%.

6 0

3 years ago

Given cosx= 4/5 when (3π/2) < x<2π find sin2x

jarptica [38.1K]

Answer:

D -24/25

Step-by-step explanation:

sin(2x) = 2sin(x)cos(x)

cos(x) = ⅘

sin²(x) = 1 - cos²(x) = 1 - (⅘)²

sin²(x) = 9/25

sin(x) = -⅗

(Because 4th quadrant)

sin(2x) = 2(-⅗)(⅘)

= -24/25

8 0

4 years ago

Evaluate 5 ( n -3) + 2 when n = -3

Feliz [49]

Answer:

The answer is -15.

Step-by-step explanation:

$5(n - 3) + 2 \\ 5( - 3 - 3) + 2 \\ 5( - 6) + 2 \\ - 30 + 2 \\ - 15$

7 0

3 years ago