2 years ago

Find the total number of diagonals for a polygon of 10 sides.

1 answer:

7 0

Diagonals = n(n-3)/n where n is the number of sides

if a polygon have 10 sides
= 10(10-3)/10
= 7

thus, the polygon have 7 diagonals.

You might be interested in

Someone who knows math more than I do, can you please answer this question for me, I'd appreciate it so much <3

Nonamiya [84]

Using the Pythagorean theorem, the other leg measures:
x = sqrt(35^2 - 32.6^2) = 12.74 cm
Since this is a right triangle, the base and height are simply the two sides that are perpendicular to each other.
Then the approximate area is (1/2)(leg 1)(leg 2) = (1/2)(32.6)(12.74) = 207.6 cm^2.

3 0

3 years ago

Bianca deposited $1500 into asavings account for whichsimple interest is calculatedquarterly. If her $1500 grew to$1509 after 3

Furkat [3]

Solution:

Given;

$P=1500,A=1509,t=3months=0.25year$ $\begin{gathered} A=P(1+\frac{r}{4})^{4t} \\ \\ 1509=1500(1+\frac{r}{4})^{4(0.25)} \\ \\ \frac{1509}{1500}=1+\frac{r}{4} \\ \\ 1.006-1=\frac{r}{4} \\ \\ r=4(0.006) \\ \\ r=0.024 \end{gathered}$

Thus, the yearly interest rate on Bianca's account is 2.4%

6 0

1 year ago

Help please. If correct I’ll mark as brainliest but I rlly need help.

kykrilka [37]

Answer:

Step-by-step explanation:

x +3x+5x - 54 = 360

x +3x+5x = 360 + 54

9x = 414

x= 46

4 0