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Ipatiy [6.2K]
3 years ago
8

How many diagonals are there in a regular polygon

Mathematics
1 answer:
Valentin [98]3 years ago
6 0

\frac{n(n - 3)}{2} diagonals  ( n is the number of sides )

You might be interested in
A local hamburger shop sold a combined total of 685 hamburgers and cheeseburgers on Wednesday. There were 65 fewer cheeseburgers
noname [10]

Answer:

620

Step-by-step explanation:

I might be wrong.

But based on the question both burgers are sold on a Wednesday so the question is asking how many cheeseburgers were sold on a Wednesday (which is the same day they both were sold) so I think you subtract.

so 685-65.

8 0
3 years ago
tyron and his friends go to a movie theater where large tub of popcorn costs $8 .25 and a medium soda costs $3.75 tyrone has $30
Veseljchak [2.6K]
30-8.25= 21.75


21.75/3.75= 5.8, you can't buy .8 of a soda so he could buy 5 sodas.
5 0
3 years ago
For the following exercises, solve each inequality and write the solution in interval notation.
Pie

Answer:

The solution of the given set in interval form is $(-\infty,-4] \cup[12, \infty)$.

Step-by-step explanation:

It is given in the question an inequality as $|x-4| \geq 8$.

It is required to determine the solution of the inequality.

To determine the solution of the inequality, solve the inequality $x-4 \geq 8$ and, $x-4 \leq-8$

Step 1 of 2

Solve the inequality $x-4 \geq 8$

$$\begin{aligned}&x-4 \geq 8 \\&x-4+4 \geq 8+4 \\&x \geq 12\end{aligned}$$

Solve the inequality $x-4 \leq-8$.

$$\begin{aligned}&x-4 \leq-8 \\&x-4+4 \leq-8+4 \\&x \leq-4\end{aligned}$$

Step 2 of 2

The common solution from the above two solutions is x less than -4 and $x \geq 12$.

The solution set in terms of interval is $(-\infty,-4] \cup[12, \infty)$.

7 0
1 year ago
Write the first five terms of each sequence described and identify the sequence as
Vedmedyk [2.9K]

Answer: i think its 4 im not sure

Step-by-step explanation:

8 0
3 years ago
To catch a ball, a professional baseball player leaps into the air with an initial velocity of
REY [17]

Answer:

The answer is below

Step-by-step explanation:

a) The baseball player leaps into the air with an initial velocity of  14 feet per second. This means that the player leaps from the ground, the initial height is therefore zero.

The height (y) is given by the formula:

y(t) = ut - (1/2)gt² + initial heigth

u = initial velocity = 14 ft/s, t = time taken, g = acceleration due to gravity = 32 ft/s². Substituting:

y(t) = 14t - (1/2) * 32 *t² + 0

y(t) = 14t - 16t²

b) when the player is on the ground, the height = 0. hence:

0 = 14t - 16t²

16t² - 14t = 0

t(16t - 14) = 0

t = 0 or 16t - 14 = 0

t = 0 or 16t = 14

t =0 or t = 0.875

Hence t = 0.875 seconds

c) The domain is the set of possible values for the time. Hence:

Domain = (0, 0.875] = 0 < t ≤ 0.875

4 0
3 years ago
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