The terminal point of Dis ( 1/2,3/2). What is cos 0?
O A. V 3
B. V3
Coc.
o D. V
SUBMIT
Answers
Answer:
(c). [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The cosine is the "x" coordinate of the terminal point on the unit circle.
Thus the answer is (c). [tex]\frac{1}{2}[/tex]
Related Questions
9. Jack has $5.90 in spare change in his pocket. All of the coins are nickels and quarters. If
he has 50 coins total, how many of each coin does he have? (Use a system of equations
to solve algebraically. Identify your variables.)
Answers
Answer:
33 nickels, 17 quarters
Step-by-step explanation:
q=quarters, n=nickels
Since total number of coins = 50 and he only has quarters and nickels,
q + n = 50.
Since a quarter is 0.25 dollars, a nickel is 0.05 dollars, and his total is $5.90,
0.25q + 0.05n = 5.90
Multiply the entire second equation by -4 to get -q and eliminate q from both equations: -4(0.25q + 0.05n = 5.90)
So, q + n = 50
And -q -0.2n = -23.6
Cancel q's and add down to combine both equations, so 0.8n = 26.4
Solve for n by dividing 0.8 by both sides, so n = 33
Plug n back into the first equation: q + 33 = 50 and q is thus 17.
Hope this helps!
Solve the system of equations given below.
y - 15 = 3
-2.1 + 5y = -3
Answers
Answer:
1) y=18
2)y=-0.18
Step-by-step explanation:
1) y-15=3. Add 15 on both sides.
y=18
2)-2.1+5y=-3. Add 2.1 on both sides
5y=-0.9. Divide 5 on both sides
y=-0.18
PLEASE HELP IT WOULD MEAN A LOT THX! :(
Answers
please help with this
Answers
Answer:
[tex]S_{n}[/tex] = n² + 4n ; n = 11
Step-by-step explanation:
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [2 [tex]a_{1}[/tex] + (n - 1)d]
~~~~~~~~~
[tex]a_{1}[/tex] = 5
d = 7 - 5 = 2
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2(5) + 2(n - 1)] = [tex]\frac{n}{2}[/tex] ( 8 + 2n ) = 4n + n²
[tex]S_{n}[/tex] = n² + 4n
n² + 4n = 165
n² + 4n - 165 = 0
(n + 15)(n - 11) = 0 ( n ≥ 0 ) ⇒ n = 11
Which three quantities are needed in order to calculate the value of the Y-intercept for the linear
regression prediction equation?
The slope, the mean of X, and the total number of observations in the data
The slope, the mean of Y, and the total number of observations in the data
The mean of X, the mean of Y, and the total number of observations in the data
The mean of X, the mean of Y, and the slope
Answers
9514 1404 393
Answer:
(d) The mean of X, the mean of Y, and the slope
Step-by-step explanation:
A point on the linear regression curve is (mean(x), mean(y)). With that point and the slope, the equation of the line can be found. That equation will reveal the y-intercept.
y-intercept = mean(y) -slope·mean(x)
I have the answers i just need to know the solution on how you do 10 and 11.
Answers
albexa ko nepali aartha
Answers
Answer:
what does this mean
Step-by-step explanation:
Can someone help and explain this question please thank you so much I appreciate
Answers
Answer:
$176.23
Step-by-step explanation:
(13x12)+(0.07x289)=
156+20.23=
$176.23
Solve each equation 3y - 4 = 6 - 2y
Answers
Answer:
y = 2
Step-by-step explanation:
3y - 4 = 6 - 2y
+2y +2y
5y - 4 = 6 (new equation)
+4 +4
5y = 10 (new equation)
/5 /5
y = 2
If point E is the midpoint of segment AC and point D is the midpoint of segment BC, which expression represents the value of u? triangle CAB, point E is on segment AC between points A and C and point D is on segment BC between points B and C, creating segment ED, CE equals p, EA equals r, CD equals q, DB equals t, ED equals s, and AB equals u u equals p over q u = one halfs u equals q over p u = 2s
Answers
Answer:
u=2s
Step-by-step explanation:
just took the exam
The expression that most effectively represents u's value would be:
D). u = 2s
Given that,
In ΔABC,
E is the midpoint in the segment AC,
While D is the midpoint of BC,
As different letters are provided equivalent to different segments. For example; Segment ED = s ; Segment CE = p ; Segment EA = r
Segment CD = q ; Segment DB = t ; Segment ED = s ; Segment AB = u
As,
CE = 0.5 × AC(midpoint)
CD = 0.5 × CB (midpoint)
Thus,
CE/AC = CD/CB = ED/AB = 1/2 (Through side angle side similarity)
Since ED = s and AB = u
∵ u = 2s (using midpoint theorem)
Thus, option D is the correct answer.
Learn more about "Segment" here:
brainly.com/question/13330632
The distance between two stations is 240km. A train takes 4hrs to cover the distance. Calculate the speed of the train
Answers
Answer:
The train was travelling at 60 km/h
Step-by-step explanation:
We're already given time and distance, and speed is just distance/time, so:
240km / 4h
= (240/4) km/h
= 60km/h
Jada has 12 library books checked out and Han has 1/4 less than that. How many books does
Han have checked out?
Answers
12-3=9
han has 9 books checked out
One year, the population of a city was 333,000. Several years later it was
293,040. Find the percent decrease.
Answers
Answer:12%
Step-by-step explanation:
(333000-293040)×100/333000
A chef got 4 bags of onions. The red onions came in bags of 7 and the yellow onions came in bags of 3. If the chef got a total of 24 onions, how many bags of each type of onion did he get?
Help me please
Answers
Answer: He for three red bags and one yellow.
Step-by-step explanation:
3x7=21
1x3=3
21+3=24
Answer:
3 bags of red and 1 bag of yellow onions.
Step-by-step explanation:
7 + 7 + 7 + 3 = 24
PLEASE HELP!! I NEED THIS ANSWER TO GET A GOOD GRADE!!!!!
Answers
Answer:
-5-4
Step-by-step explanation:
Let me know if I am wrong, if I am I apologize.
Have a good one.
1.Which statement about two negative numbers is true? .
Answers
Answer:
To negative numbers makes a positive number.
(only in dividing and multiplying)
Step-by-step explanation:
Please mark me brainliest
I need help please I have to finish this
Answers
Answer:
Look at the Screenshot below for the answer
Step-by-step explanation:
Answer:
-5/2
Step-by-step explanation:
There are 28 students in Brad’s class. Their teacher is giving each of them 16 pieces of notebook paper, to make a journal. How many pieces of paper will they need?
Answers
Answer:
448
Step-by-step explanation:
This is Multipilcation, 26 x 16 = 448
Answer: 448
Step-by-step explanation: This is Multiplication, 26 x 16 = 448
please give brainiest
Ten percent of the items produced by a machine are defective. Suppose that twenty items are randomly chosen. Use this information to answer the following three questions. What is the probability that exactly 3 of the items are defective
Answers
Answer:
15%
Step-by-step explanation:
if 10% is to 20 then 15% is to 30
Given the following list of data, find the median.
1,3, 1.23, 2, 4, 22, 13, 26. 8
Answers
Answer:
solution
or, (N+1) th item
_
2
or ,8+1 th item
_
2
or,9
_
2
or,4.5 th item hence the median is4
The median of the given numbers will be 8.5.
What is the median?The Median is the middlemost value of the numbers arranged in ascending orders. If the number of the data is an odd number so the median will be a middle number if the number of the data is even then the median is the mean of the middle two numbers.
The given data is:-
1 , 1.23 , 2 , 3 , 4 , 13 , 22 , 26.8
The total numbers of the data are 8 so the median will be calculated as:-
Median = ( 4 + 13 ) / 2
Median = 17 / 2
Median = 8.5
Therefore the median of the given numbers will be 8.5.
To know more about median follow
https://brainly.com/question/26151333
#SPJ2
Solve the system.
x + 2y – 4z = 4
2x – y + 2z = 3
3x – 8z = -2
Enter answer as ordered triple.
Answers
X+2y - 4z =4
2x-y +2z =3
3x-8z=-2
9z / 14y/7x
Answer:
(2,3,1)
Step-by-step explanation:
i just did the problem
hope this helps :))
Penelope's car gets 300 miles on 20 gallons of gas. Blake's car gets 495 miles on 15 gallons of gas.
Which car has better gas mileage?
Answers
Answer:
Blake's car gets better mileage
Step-by-step explanation:
In order to find how many miles you get per gallon, you would do miles/gallons
As I'm typing this I realize it makes no sense but pretty much you just do 300/20 which is 15 mpg, and 495/15 which is 33 mpg, therefore Blake's car is better
#1
If Four cups of flour makes seven dozen holiday cookies, how many cups of flour are needed to make 126
cookies?
Answers
Answer:
6 cups to make 126 cookies
Step-by-step explanation:
dozen = 12 cookies
7 x 12= 84
126 - 84 = 42
so you will have to make 42 cookies more and that will be 2 more cups of flour
it total is 6 cups to make 126
Molly scored 86, 87, 93, and x
on her four history tests. If her
average for the four tests was 91,
what is the value of x?
Answers
Answer:
98
Step-by-step explanation:
Average is the sum of all data points divided the number of data points.
In this specific situation, the average test score, 91, is equal to the sum of Molly's four individual test scores divided by the number of test Molly had, 4.
(( 86 + 87 + 93 + x) / 4) = 91
86 + 87 + 93 + x = 91/4
86 + 87 + 93 + x = 364
x = 364 - 93 - 87 - 86 = 98
HELP PLEASE ASAP WILL GIVE BRAINLEIST
Answers
Answer:
PN = 10
Step-by-step explanation:
Base angles converse theorem states that a triangle with two congruent angles is isosceles. The sides opposite to the two congruent angles are the congruent sides. The side between the two congruent angles is the base.
In this problem, it is given that <P = <O, hence ΔNOP is isosceles, because of base angles theorem. OP is the base, and hence NO is one of the congruent sides and therefore has to be congruent to PN. Which means that PN is 10.
Simplify using the laws of exponets.
Answers
Answer:
2*5
Step-by-step explanation:
when youre dividing with powers you have to subtract them so 2*5-2*4=2*1. When the power is in brackets you multiply the whole power. So 2*1 x 5 = 2*5.
1
Determine whether the triangles are similar. If they are, write a similarity statement.
42°
48
Are they similar?
If so, then which of the following is an accurate similarity statement?
Answers
Answer:
theyre not similar
Step-by-step explanation:
they have different angles
The value of y is directly proportional to the value of x. If y = 35 when & = 140, what is the value of y when 3 = 70
answer choices -
17,5
280
70
35
Answers
Suppose y varies directly with x. Write a direct variation equation to relate x and y if y = 10 when x = 2
Answers
Answer:
y=5x and y=40 when x=8
Answer:
y = 5x
Step-by-step explanation:
Given that y varies directly with x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 10 when x = 2
10 = 2k ( divide both sides by 2 )
5 = k
y = 5x ← equation of variation
Any help please thank you I appreciate it
Answers
Answer:
x=33
Step-by-step explanation:
The angles have to add up to 180, so you get:
2x - 18 + 4x = 180
6x = 180 + 18
x = 198/6
x = 33
