How many degrees are there in the angle formed by two adjacent sides of a regularnonagon (nine-sided polygon)?
Answers
Answer:
40
Step-by-step explanation:
360/9=40
Related Questions
If sin x=0.5, what is the value of cos x?
The product of two consecutive positive integers is 27 more than 5 times the larger
factor each expression: 4n^2-8n+3, 4p^2+7p+3, 6r^2-23r+20, 5z^2+19z-4, 2k^2-13k-24, 6t^2+7t-5, 3x^2+23x-36, 4w^2-5w-6, 4d^2-4d-35
The sum of 3 consecutive integral numbers is 117. Find the numbers. need all 3 numbers
Answers
Answer:
Step-by-step explanation:
Given: separate all the clubs from a deck of cards and pick 3 of those 13 cards.
To find: probability that the cards are jack, queen, and king in ascending or descending order
Solution: Ascending and descending are mutually exclusive , thus
P(JQK)=
P(JQK)=
P(KQJ)=
P(KQJ)=
P(JQK or KQJ)=
P(JQK or KQJ)=≈0.0012
90
120
What is the answer please help.
Thank you
Answers
Answer:
Step-by-step explanation:
From coordinate geometry we know that, slope is ratio of vertical change rise and the horizontal change run.
Mathematically,
Putting the given values,
6/Run=1/20=6/120
Say that R=Run
6/R=6/120
720/R=6
6R=720
R=720/6=120
Therefore Run=120.
-6,-3,0,3,6
Answers
Answer:
3n-9
Step-by-step explanation:
NO NEED TO EXPLAIN ENJOY :)
We then use the formula,
where
To elaborate a bit more, your 1 st term is -6, 2 nd is -3, 3 rd is 0, etc.
Also, the formula above is something you just learn, unless you learn to proof this formula, which is something different.
So, here,
Therefore,
3/4
11/16
9/16
1/4
3/16
Answers
Answer:
Therefore, the correct answer is 9/16.
Step-by-step explanation:
To determine the probability that mn is an even integer, we need to consider the possible values of m and n.
Set P contains the elements (2, 3, 5, 5, 6), and set Q contains the elements (1, 2, 3, 4).
For mn to be an even integer, either m or n must be an even number.
In set P, there are two even numbers (2 and 6) out of a total of five elements. So, the probability of selecting an even number from set P is 2/5.
In set Q, there are two even numbers (2 and 4) out of a total of four elements. So, the probability of selecting an even number from set Q is 2/4 or 1/2.
To find the probability that mn is an even integer, we can consider the two cases:
If m is even and n is any number:
The probability of m being even from set P is 2/5, and the probability of n being any number from set Q is 1 (since any number can be selected from set Q). Therefore, the probability of mn being even in this case is (2/5) * 1 = 2/5.
If m is any number and n is even:
The probability of m being any number from set P is 1 (since any number can be selected from set P), and the probability of n being even from set Q is 1/2. Therefore, the probability of mn being even in this case is 1 * (1/2) = 1/2.
We can add these two probabilities to find the overall probability that mn is an even integer:
Probability = (2/5) + (1/2) = 4/10 + 5/10 = 9/10.
Therefore, the correct answer is 9/16.
Answers
h=20 cm = 0.2m and r=5cm = 0.05m
The cans are cylinders and we only need the rectangular shape, which is equal to the height x the circumference of the circle (2r(pi)), which you'll have to multiply by 200,000 for the number of cans necessary
your equation is therefore:
A=200,000h(2pi(r))
A=200,000(0.2)(2)(0.05)(pi)
A=4000pi m^2
r = 5cm, h= 20cm
Surface area for one can = 2πrh = 2*π*5*20 = 200π = 200* 3.14
Surface area ≈ 628 cm²
For the 200, 000 cans, Total area = 200 000 * 628 = 125 600 000 cm²
But 1 000 000 cm² = 1m²
125 600 000 cm² = 125 600 000 / 1 000 000 = 125.6 m²
Total surface area ≈ 125.6 m²
(1-sin^2x)(1-tan^2x)
Answers
1/sin^2x-1/ (sin^2x/cos^2x)<<sin tan= sin/cos>>
= 1/sin^2x- cos^2x / sin^2x
= (1- cos^2x) / sin^2x <<combining into a single fraction>>
sin^2 x / sin^2x <<since 1- cos^2 x sin^2 x
=1
this simplifies to 1.