What is the value of cosine theta in the diagram below?
A unit circle is shown. A radius with length of 1 forms angle theta in the first quadrant. The radius goes to point (0.6, 0.8) on the unit circle.
Three-fifths
Three-fourths
Four-fifths
Four-thirds
Answers
Answer:
A: Three-fifths
Step-by-step explanation:
I have attached an image to depict this question.
We can see that the point at which the radius goes on the unit circle is a coordinate (x, y)
We are told this coordinate is (0.6, 0.8)
Now, in these type of unit circle diagrams;
x = cos θ and y = sin θ.
Thus;
cos θ = 0.6
cos θ = 6/10
Simplifying gives;
cos θ = 3/5
Answer:
A. 3/5
Step-by-step explanation:
cause i know
Related Questions
which of these expression is equivalent to -2(3-y)
Answers
[tex]( - 6 + 2y)[/tex]
answer the question
in a game the player wins if he rolls a 4 on a number cube if the numbered cube is rolled 24 times then what is the reasonable prediction for the number of unsuccesful rolls
Answers
If you roll a numbered cube once, your chance of getting a 4 is 1/6. If you roll twice, your chance of getting a 4 is 2/12. If you roll three times, your chance of getting a 4 is 3/18. You see the pattern here? Try it yourself and see if you can get it! If you can't understand it, let me know and I'll give you the answer!
(I like to try and help before I just give the answer straight away!)
Is this the right answer?
Answers
Answer:
yes
Step-by-step explanation:
10 is half of 20 but the equation is 11/20 therefore 11/20 is greater than 10/20=1/2
Factorise the following:
a) x – 5x - 6
b) x + 3x – 40
C) - 7x - 30
Answers
Answer:
-4x-6
4x-40
-7x-30
Step-by-step explanation:
wel swam 86 meters. Tyrel swam 53 meters.
Answers
Answer:
wel swam 86 meters. Tyrel swam 53 meters. so what is the question
Answer:
Im guessing its who swam faster.
Jaime says that the value of -1 x n is always equal to the value of n = (-1) for all
values of n.
Explain whether Jaime is correct or incorrect.
Answers
In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that a student has a cat given that they do not have a dog? ( NO LINKS )
Answers
Given:
Number of students who has a cat and a dog = 5
Number of students who has a cat but do not have a dog = 11
Number of students who has a dog but do not have a cat = 3
Number of students who neither have a cat nor a dog = 2
To find:
The probability that a student has a cat given that they do not have a dog.
Solution:
Let the following events:
A = Student has a cat
B = Do not have a dog
Total number of outcomes is:
[tex]5+3+11+2=21[/tex]
The probability that a student has a cat but do not have a dog is:
[tex]P(A\cap B)=\dfrac{11}{21}[/tex]
The probability that a student do not have a dog is:
[tex]P(B)=\dfrac{11+2}{21}[/tex]
[tex]P(B)=\dfrac{13}{21}[/tex]
The conditional probability is:
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{P(A\cap B)}{P(B)}[/tex]
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{\dfrac{11}{21}}{\dfrac{13}{21}}[/tex]
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{11}{13}[/tex]
Therefore, the probability that a student has a cat given that they do not have a dog is [tex]\dfrac{11}{13}[/tex].
can u guys help me with this
Answers
Answer:
Step-by-step explanation: Finding the height can be solved using a simple formula using the length of the base and the area. You should multiply length times area! hope this helps.
Is this unbiased or biased?
The Bernal leadership class is going to sell spirit t-shirts for students and needs to order a color that most students would like to wear, so they ask every fourth student entering the school about their favorite t-shirt color to make a decision about all Bernal students.
Answers
Biased, because some students may not like that color, and thus going off of the most popular opinion is only supporting the most popular color. Adding onto that, not every student even gets to vote since it is only every 4th student.
Ryan and Sheila are preparing to get married. Sheila has a car payment of $297.00 per month, which is 9% of her monthly income. After they are married, Sheila knows that her car payment will only be 5% of their combined monthly income. How much money does Ryan make per month?
Answers
Answer:
$2640
Step-by-step explanation:
Sheila's car payment is 9% of her total income.
let i = total income
this equation can be used to represent the information :
9% x i = $297
to determine i, divide both sides of the equation by 9%
$297 / 0.09 = $3300
After the marriage, the car payment which is 3300 would be 5% of the combined income.
let c = combined income
5% x c = $297
c = $297 / 0.05 = $5940
Ryan's income = combined income - Sheila's income
$5940 - $3300 = $2640
Choose the expression that shows the difference between x and y.
Answers
Answer:
the difference between x and y is x-y.
Step-by-step explanation:
ILL MARK YOU BRAINLIEST SHOW WORK THO PLS
3(s+4) = s+10+2s
Answers
Step-by-step explanation: it means no solution
hope it is helpful to you
Answer:
This equation has no solutions
Step-by-step explanation:
3(s+4)=s+10+2s
Distribute
3s+12=s+10+2s
Add like terms
3s+12= 3s+10
Subtract 3s from both sides
0 + 12=10
This equation has no solutions
which is an irrational number?
Answers
RuiFeng is twice as old as Raj and Khairul is 7 years younger than RuiFeng. If the sum of their ages is 38 years, find their respective ages?
Answers
Answer:Ans :RuiFeng 18 yrs, Raj 9 yrs, Khairul 11 yrs
Step-by-step explanation:
Jean wants to invest a gift of $4,250 in the stock market. A broker suggests two companies, Solar Solutions (SOLR) and Frontline Medical (FLMD). He provides the probabilities for an annual return on $4,250 based on their historical gains: SOLR: 50% chance of $1,000 gain, 35% chance of $200 gain, 15% chance of $600 loss FLMD: 80% chance of $750 gain, 20% chance of $100 loss Which is the best analysis of these investments?
Answers
Answer:
the answer is the question with $580 in it please correct me if im wrong
Step-by-step explanation:
Jean can expect to earn about $580 on her investment of $4,250 if she invests in FLMD.
How to calculate the expected return?The expected return on SOLR is calculated by multiplying the probability of each outcome by the amount of the gain or loss, and then adding these results:
50% chance of $1,000 gain: 0.5 x $1,000 = $500
35% chance of $200 gain: 0.35 x $200 = $70
15% chance of $600 loss: 0.15 x -$600 = -$90
Therefore, the expected return on SOLR is $500 + $70 - $90 = $480.
The expected return on FLMD is calculated in the same way:
80% chance of $750 gain: 0.8 x $750 = $600
20% chance of $100 loss: 0.2 x -$100 = -$20
Therefore, the expected return on FLMD is $600 - $20 = $580.
Since the expected return on FLMD is higher than the expected return on SOLR, FLMD is the better investment.
The expected return on FLMD is $580, which means that Jean can expect to earn about $580 on her investment of $4,250 if she invests in FLMD.
To learn more about the expected return click here:
https://brainly.com/question/24173787
#SPJ2
the product of a number and two more than the number .. what is the expression?
Answers
David kicks a soccer ball off the ground and in the air, with an initial velocity of 35 feet per second. Using the formula H(t) = −16t2 + vt + s, what is the maximum height the soccer ball reaches?
Answers
Answer:
Step-by-step explanation:
The function for this problem is: h(t) = -16(t)^2 + vt + s h= the height t= time v= velocity s= starting height With the information given, we know that the starting height is 0, since it was from the ground, and the velocity of the ball is 35 feet per second. Inserting the these information into the equation, we get: h(t) = -16(t)^2 + 35t Now the question asks to find the maximum height. It can be done by using a grapher to graph the maximum of the parabola. It could also be done by finding the vertex, which would be the maximum, of the graph by using x= -b/(2a), where b is equal to 35 and a is equal to -16. We get x=35/32, the x-value of where the vertex lies. You can use this value as the t-value in the previous equation to find the h-value of the vertex. When you do, you get h= 19.1 feet, or answer D.
hope this helps
hallar el numero de intervalo de
33 - 11= 22
Answers
Answer:
22=22
Step-by-step explanation:
33-11
22
22=22
have x 50 notes and y N100 notes. There
are eight notes altogether and their total
value is N550. How many of each note do
I have
Answers
Answer:
hi
Step-by-step explanation:
hi
1. 50x + 100y = 550 (value of the notes x the number of each note)
2. x + y = 8 (the number of each note added).
3. Multiply the second equation by 50 so that it the x variables are the same in both equations. Thus, 50x + 50y = 400.
4. Subtract 50x + 50y = 400 from 50x + 100y = 550.
5. The subtraction results in 50y = 150.
6. Divide by 50. y = 3, so x must equal 5.
Which describes the number and type of roots of the equation x^3 + 121x = 0?
a. 2 real roots, 1 imaginary root
b. 1 real root, 2 imaginary roots
c. 3 real roots
d. 3 imaginary roots
Answers
Answer:
b; 1 real root and 2 imaginary roots
Step-by-step explanation:
From here, we have
x(x^2 + 121) = 0
x = 0 (1 real root)
or
x^2 + 121 = 0
x^2 = -121
x = √(-121) (2 imaginary roots)
so is would be two complex numbers from above
i will give brainliest tovthe first person that answers
Answers
Answer:
hii
Step-by-step explanation:
What is the graph of the system?
y 3x + 4
2x + y = -4
Your answer
Answers
Answer:
x
y
−
2
80
−
1
38
0
−
4
1
−
46
2
−
88
Step-by-step explanation:
help is appreciated
(ANY LINKS OR WEBSITES WILL BE REPORTED)
:) will give brainliest
Answers
Answer:
95/9
Step-by-step explanation:
It will be easier for us to make the mixed numbers fractions.
2 1/3 = 7/3
8 2/9 = 74/9
now we want them to have the same denominator so we multiply the 7/3 fraction by 3/3.
21/9 + 74/9 = 95/9
Hey please help me be geniune this is a timed test and I really need help will mark brianliest :( please no links I’m tired of seeing them
Answers
Answer:
510 ft^2
Step-by-step explanation:
(12*9)+(12*9)+(7*9)+(7*9)+(7*12)+(7*12) = 108+108+63+63+84+84 = 510 ft^2
Hope this helped! :)
In the diagram, parallel lines P and O are out by
transversal R. What is the value of
Only 0,1,2,3,4,5,6,7,
8.9,-,- and I are
allowed in your answer.
Answers that are mixed
numbers must be entered
as an improper fraction or
Ceomal
Answers
Answer:
x = 45
Step-by-step explanation:
The angles are supplementary
(2x + 40) + (3x - 85) = 180
Combine like terms
5x - 45 = 180
Add 45 to both sides
5x = 225
Divide both sides by 5
x = 45
45 Points HELP RIGHT NOW!!!! Due in 2 hours!!!!! NO websites are allowed and please give me the order like this I need the steps too!!! I will mark you brainless too don’t answer for points or your reported
1 (table)
2(dog walker)
3(Ms Scholl)
Answers
Kayaker=12.5, so 12 knots
Commercials=9 commercials per hour
Dog= 7 miles
Tutoring=750 dollars
Nandini uses a code to open a security door.
The code is a letter followed by a 2-digit number.
The letter is P or Q.
The number is a prime number between 30 and 40
Write down all the possibilities for Nandini's code.
Answers
Answer:
57
Step-by-step explanation:
getting brainlys
How do you solve this? I really don't understand...
Answers
Answer:
MEAN 5.8 add all the points up then divide by the number of dots
MEDIAN 5 the middle of the data
MODE 5 most accruing one
RANGE 7 maximum minus minimum
please answer correctly. i will give brainliest!!
Answers
I'm pretty sure its just the last 3
what is this please!!!!! 20= -6+2n
Answers
Answer:
n = 13
Step-by-step explanation:
20= -6+2n
Add 6 to each side
20+6= -6+6+2n
26 = 2n
Divide each side by 2
26/2 = 2n/2
13 =n