Given an angle t that corresponds to the point (- 3 squared/2, 1/2) on the unit circle show
below, find cos(t) and sin(t).
Answers
Answer:
Step-by-step explanation:
Your question asks what is -[tex]3^{2}[/tex] / 2 but, since it's on the Unit circle, I know you meant - [tex]\sqrt{3}[/tex] /2 Also, it's one of those known angles on the unit circle.
note that the angles can all be put in the form of [tex]\sqrt{x}[/tex] / 2 , where x = 0,1,2,3,4 , for the five special points on the unit circle.
as the attached pic shows, Cos(t) for the given point would be 180-150°= 30 and sin(t) would be 90 - 30 = 60 °
it's not easy to understand how I got those angles, just ask if you don't get it. :)
Related Questions
What is the surface area of the rectangular prism that can be formed using this net?
Answers
Answer:
S = 2(lw + lh + wh)Step-by-step explanation:
Triangle ABC is similar to triangle FED, find the measure of x. A. X = 9 B. X = 11 C. X = 110 D. X = 231
Answers
Answer:
[tex]A+B+C=130[/tex]
[tex]F+E+D=273[/tex]
Step-by-step explanation:
From the question we are told that:
Dimension of ABC
A=9
B=11
C=110
Dimension of FED
D=231
Generally the equation for the similar triangles is mathematically given by
[tex]\frac{A}{F}=\frac{B}{E}=\frac{C}{D}[/tex]
Therefore solving for F
[tex]\frac{9}{F}=\frac{110}{231}[/tex]
[tex]F=\frac{9*231}{110}[/tex]
[tex]F=18.9[/tex]
Therefore solving for E
[tex]\frac{11}{E}=\frac{110}{231}[/tex]
[tex]E=\frac{11*231}{110}[/tex]
[tex]E=23.1[/tex]
Measure of [tex]\triangle ABC[/tex]
[tex]A+B+C=130[/tex]
Measure of [tex]\triangle FED[/tex]
[tex]F+E+D=273[/tex]
In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly finds that the weight of the compound is 8,450 mg. What is the value in grams (g) that Shelly should enter?
Answers
Answer:
8.45 grams
Step-by-step explanation:
In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly finds that the weight of the compound is 8,450 mg. What is the value in grams (g) that Shelly should enter?
1 mg = 0.001 g
8450 mg = x
Cross Multiply
= 8450 × 0.001 g
= 8.45 g
Therefore, Shelly should enter 8.45 grams
find the value of each variable
Answers
Answer:
x = 16 y= 16√3
Step-by-step explanation:
we know that a angle is 60 degrees. Thanks to this information we can say that x is half the hypothenuse, so is value is 16.
y can be express as √3/2 x 32 = 16√3
X^2(x+5)
Help me PLS
Answers
Answer: x^3+5x^2
Step-by-step explanation:
Can some one help? PLEASE!!!!!!!!
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2: false
3: false
4: true
5: true
I hope these are correct!
false
false
true
true
:-)
what is the measure of AT in 0 below?
Answers
Answer:
97 degrees
Step-by-step explanation:
Answer:
97
Step-by-step explanation:
1. Point D (9,-8)
is
reflected to D' (9.8).
X axis or y axis
Answers
Answer:
X-Axis
Step-by-step explanation:
The Y changed from negative to positive meaning that it reflected across the X-Axis
(っ◔◡◔)っ ♥ Hope It Helps ♥
Answer:
x axis
Step-by-step explanation:
Since the x value stayed the same and the y value changed, we can tell that the point was reflected over the x axis.
Another way to think of it:
If you draw a graph and put both points on the graph, try to fold the paper on one of the axis's. Whichever fold causes the two points to touch, is the axis that point D was reflected on.
What is the following product
Answers
Answer:
1.) y3
Step-by-step explanation:
2\sqrt((25)/(64))-(3)/(8)
Answers
Answer:
ookStep-by-step explanation:
oaxy8g7qd c7heuhwciwycowbobwxicx
donvc
Area of Composite Figures
-1.5 in.
10 in.
A
6 in
4 in.
1.5 in.
17 inches squared
0.40 inches squared
52 inches squared
0 61 inches squared
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Answer:
Step-by-step explanation:
COMPOSITE FIGURES!!! can you please help
Answers
For the blue figure, there are two 2 by 2 panels and three 7 by 2 panels that would be exposed to the surface
So (7•2)•3 = 42 and (2•2)•2 = 8 so 42•8=50
The green panel is made up of four 12 by 7 panels and two 7 by 7 panels, with one of them being covered with a 14 cm part.
So (7•12)•4 = 336 and 7•7 = 49. The top part would be 49-14=35 so 336 + 49 + 35 = 420
And 420 + 50 = 470
Please correct me if I am wrong, have a good day!
WHY DO U HATE ME?? ALSO HELP IN PIC!!!!!!!!!!!!
Answers
Answer:
Don't know u is correct. Also I'm not a h0* how rude >:(
Answer:
None of the above because I love you
Step-by-step explanation:
I don't hate you and if some people do they must have there reasons which I don't know, but some people just hate for no reason and if they can hate for no reason some people can love for no reason.
You may be a complete stranger to me but I love you
Sketch the graph of the following equations: y=x+5, y=-(x+5), and y = |x+5|
Answers
The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
Equations are,
y = x + 5
y = - (x + 5)
y = |x + 5|
Since, All equations shows equation of line.
Hence, We can draw all the equations as shown in figure.
y = x + 5
Slope = 1
y - intercept = 5
y = - x - 5
Slope = - 1
y - intercept = - 5
Thus, The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.
Learn more about the equation of line visit:
https://brainly.com/question/18831322
#SPJ2
Which equation below describes the angle measurements of a night isosceles
triangle?
А
90 + 2(45) = 180
B
180 = 90 + 40 + 50
c (180) = 60
D (90) + 90 = 180
Answers
PLEAS EHELP ILL GIVE BRAINLIEST
PLEASE SHOW ALL WORK AND BE SPECIFIC
Answers
Answer:
Where is the question? You didn't post it.
What is the independent and dependent variable in this statement, types of pizza or number of votes
Answers
Answer: type of pizza is dependant and the number of votes is independent
Step-by-step explanation:
the type of pizza they get depends on how many votes there are
please help I am in fourth I don't know how to do this :(
Answers
Answer:
D
Step-by-step explanation:
I think so because you are divideng by 10*10 so it is 100 and you have to move to the right 2 places. I think thats it
Evaluate y=x/7+15 when y=21
Answers
Answer:
x = 42
Step-by-step explanation:
y = x/7 + 15 ; y = 21
21 = x/7 + 15
21 - 15 = x/7
6 = x/7
x = 6 × 7
x = 42
Thus, The answer is 42
-TheUnknownScientist
Answer:
x = 42
Step-by-step explanation:
I hope its helps.........
It wants me to find m∠2 from this
Answers
Answer:
Alternate interior angles have the same measure. As we know that 'angle 1 ' and 50° are alternate interior angles hence they must be equal. Also we now that sum of all the angles of a triangle is equal to 180°. Hence, m∠2=15°
Step-by-step explanation:
Answer:
90°
Step-by-step explanation:
This is a kite.
The angle measures of the diagonals (the lines in the middle) are always going to be 90° if they looks like this without any other measures. This goes for all other quadrilaterals as well.
m∠2=90°
Hope I helped.
any body can help me like pls
Answers
Answer:
Option D
Answer is D- 1/5Please mark as brainliest for future answers :)Holly Chris and tony each collect action figures.Chris has twice as many action figures has 3 fewer action figures than Tony.
Answers
Answer:
i have the same question brainly peeps help out
Step-by-step explanation:
In the expression 4x3 + 12, which is a coefficient, which is the variable, and which is a constant?
Answers
Answer:
4 and 3 are coefficanta and 12 will be a constant.
if 4 and 3 are being shared by the variable they would be coefficants
if x is not a variable then all the numbers are constants
Step-by-step explanation:
HELPPPPPPP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Answers
Answer:
answer is 9
Step-by-step explanation:
1st method: Proportion
15/100 = n/60
cross-multiply to get:
100n = 900
n = 900/100
n = 9
2nd method: Convert % to Decimal and Multiply
.15 × 60 = 9
PLEASE HELP AND FAST i will give brainly if rightThe circle graph shows the results of a survey about favorite hobbies. A total of 1,000 people were surveyed.
Answers
Answer:
180
Step-by-step explanation:
Priscilla received 240 votes in the election for student council president. That was 60% of the students who voted in the election. How many students voted in the election? *
Answers
Answer:
400 students voted in the election
Step-by-step explanation:
Given:
Total number of votes received by Priscilla = 240
This was 60% of the students who voted in the election.
To find: Total number of students who voted in the election
Solution:
Total number of votes received by Priscilla = 60% of Total number of students who voted in the election
240 = 60% of Total number of students who voted in the election
240 = [tex]\frac{60}{100}[/tex] × Total number of students who voted in the election
So,
Total number of students who voted in the election [tex]=\frac{240(100)}{60}=400[/tex]
Joan paid $47.98 for a jacket. If the tax rate is 8.25%, what was the cost of the jacket before tax?
Answers
Answer:
$44.021
Step-by-step explanation:
$47.98 - 8.25% = $44.021
Estimate a 20% tip on a dinner bill of $142.74 by first rounding the bill amount to the nearest ten dollars.
Estimated tip:
X
6
?
Answers
Answer:$171.29
Step-by-step explanation:
if the tip amount is around $28.55 and your putting 20% it would $171.29 but it would determine how many people they are.
please help, and thank you.
Answers
Answer:
G: Ms Ruiz
Step-by-step explanation:
She had the lowest slope
I don’t know if this is correct !!!!!!! Please answer correctly !!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answers
Answer:
that is correct!!! and good job