If cos O =-2/5 and tan O > 0 what is the value of sin O
Answer:
negative square root 21 over 5.
Step-by-step explanation:
mathGiven that for an angle ,
We are to find the value of
We know that
Cosine is negative in Quadrant II and Quadrant III.
Tangent is positive in Quadrant 1 and Quadrant III.
So, the given angle lies in the Quadrant III.
We will be using the following trigonometric identity:
We have
Since the angle lies in Quadrant III and sine is negative in that quadrant, so
Thus, option (B) is correct.
Given the point A(3,4) find the coordinates of three other point to create a parallelogram ABCD that isnt a rectangle or square
Answer:
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Answer:
I will help
Step-by-step explanation:
Answer:
i can help you
Step-by-step explanation:
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Lin runs 5 laps around a track in 4 minutes. How many minutes per lap is that?
Answer:
1.25 minutes per lap
Step-by-step explanation:
Which line on the graph below has an undefined slope?
○ P
○ Q
○ R
○ S
Answer:
R
Step-by-step explanation:
Answer:
R
Step-by-step explanation:
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Which of the following is the function rule for the graph of the sin function from 0 to 2pi if the amplitude is 1.5 and the period is (pi/2)?
A. 1.5sin(pi /4)x
B. 1.5sin2x
C. 1.5sin4x
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Answer:
1.5sin4x
Step-by-step explanation:
I just answered this question and got it right.
The function is 1.5sin(4x).
What is sin function?The ratio of the length of the opposite side to that of the hypotenuse in a right-angled triangle is the sine function in trigonometry. A right triangle's sides or unknown angles can be found using the sine function.
Given the sine function from (0, 2π), and amplitude is 1.5, the period is π/2
sine function in general form
y = a sin (b (x – h)) + d
where a = amplitude, b= period
h is the phase shift, and
d is the vertical displacement.
according to question, This function currently has no phase shift, since
h = 0, and no vertical displacement, since d = 0
equation is y = a sin b x
and b is ratio of normal period to desired period
b = 2π/(π/2)
b = 4
substitute the value of a and b in equation we get,
y = 1.5 sin (4x)
Hence the sin function from 0 to 2pi is y = 1.5 sin (4x).
Learn More about sin function;
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a number is 2/3 of another number. if the sum of the two numbers is 30, find the smaller number.
Answer: The numbers are 4 and 6.
Step-by-step explanation:
Let one number be represented as
x
and the other as
y
.
According to the problem:
x
=
2
3
y
and
x
+
y
=
10
From the second equation we get:
x
+
y
=
10
∴
y
=
10
−
x
(subtracting
x
from both sides)
Replacing the value of
y
in the first equation we get:
x
=
2
3
y
x
=
2
3
(
10
−
x
)
Multiplying both sides by
3
we get:
3
x
=
2
(
10
−
x
)
Opening the brackets and simplifying we get:
3
x
=
20
−
2
x
Add
2
x
to both sides.
5
x
=
20
Divide both sides by
5
.
x
=
4
Since from the second equation we have:
x
+
y
=
10
substituting
x
with
4
we get:
4
+
y
=
10
Subtract
4
from both sides.
y
=
6
Answer: The smaller number is 12.
Step-by-step explanation:
Just took the test
which point is closer to the x-axis (0.7, 21) or (0.77, 10)
Answer:
As
[tex]d_A=21[/tex][tex]d_B=10[/tex]Therefore, point B is closer to the x-axis.
Please check the attached graph.
Step-by-step explanation:
We know that:
x-coordinate of any point P(x, y) gives its distance of that point from the y-axisy-coordinate of any point P(x, y) gives its distance of that point from the x-axisGiven the points
(0.7, 21)(0.77, 10)Let us say
A(0.7, 21)B(0.77, 10)FOR POINT A(0, 7)
As the y-coordinate of point A(0.7, 21) ⇒ y = 21We know that the y-coordinate of any point P(x, y) gives its distance of that point from the x-axis
Thus, the distance of point A(0.7, 21) from the y-axis is 21 units.
i.e.
[tex]d_A=21[/tex]
FOR POINT B(0.77, 10)
As the y-coordinate of point A(0.77, 10) ⇒ y = 10We know that the y-coordinate of any point P(x, y) gives its distance of that point from the x-axis
Thus, the distance of point B(0, 7) from the y-axis is 10 units.
i.e.
[tex]d_B=10[/tex]
As
[tex]d_A=21[/tex][tex]d_B=10[/tex]Therefore, point B is closer to the x-axis.
Please check the attached graph.
Answer:
a=10
b=20
Step-by-step explanation:
HELPP! I need an explanation an answer quicck
Answer:
C. -1,-2
Step-by-step explanation:
.Damian wrote the number five and thirty-eight thousandths as 5.38. Was he correct or not? if so, what was the error
Answer:
he is incorrect.
Step-by-step explanation:
It would be 5 and 38 HUNDRETHS because the first number after the decimal is the tenths.
Rachel packed supplies for the sixth grade picnic. For every 11 forks she packed, she packed 8 spoons. Rachel packed a total of 110 forks. How many spoons did she pack?
Answer:
80
Step-by-step explanation:
The ratio is 11:8 multiply it by 10 it turns into 110:80
Answer:
80
Step-by-step explanation:
because that's the answer
Maya's final score is 298.Which dancer has the greater final score?
Answer:
the question
Step-by-step explanation:
because it litterly has dancer and in the question it has the greater final score.
Donavon and Joshua are both weight lifting to gain weight. Donavan weighs 120 lbs and he gaining 10 lbs each month and Joshua weighs 150
Ibs and is gaining 4 lbs each month. How many months will it take for Donavan to weigh the same as Joshua?
Answer:
4 months
Step-by-step explanation:
PLEASE HELP WILL GIVE 15 POINTS!!!!
Answer:
130
Step-by-step explanation:
What is the domain and range of the equation y = 6/(x+2) + 4?
Answers:
Real numbers except x = -2 and Real numbers except y = 6
Real numbers except x = 2 and Real numbers except y = 4
Real numbers except x = -2 and Real numbers except y = 4
Answer:
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Step-by-step explanation:
Marking people as brainlist are the triangles congruent?
Answer:
congruent by S.A.S. hope it helps if you could give me brainliest it would help. THANKS
Step-by-step explanation:
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Answer:
y=95x+50
Step-by-step explanation:
find the missing measures
Answer:
8 cm and 28 cm
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
(i)
Here A = 48, b = AB and h = DE = 6 , then
AB × 6 = 48 ( divide both sides by 6 )
AB = 8 cm
(ii)
Here A = 252, b = PQ = 9 and h = RT , then
9 × RT = 252 ( divide both sides by 9 )
RT = 28 cm
Solve 3/4x = 7 28/ 3
3/4x=728/3
x=728/3×4/3
x=32.556
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
BUT I'M NOT SURE IF IT IS CORRECT
Simplify 12x-24 into simplest form
What is the slope of the graph?
Peter, Henry & Angad share some money in the ratio 1 : 5 : 4.
In total, Peter and Angad receive £75.
How much does Henry get?
Answer:
75
Step-by-step explanation:
1+4=5
75=75
Merritt is driving to Mount Shasta. On her map, she is a distance of 7 inches away. The scale of the map is 2 inches is to 50 miles. How far must Merritt travel to reach her destination?
Answer:
7 inches on the map is 175 miles.
Step-by-step explanation:
2 inches equals 50 miles. Use 50 divided by 2 to find the 1-inch scale which is 1:25 ( one inch to 25 miles)
Joey and Krysta are at the Richmond Fair and are waiting in line to ride on the Ferris Wheel. They are trying to figure how long they will need to wait before they get to the front of the line. The more people in the line ahead of them, the longer they will need to wait.
p = the number of people in line ahead of Joey and Krysta
w = the length of time Joey and Krysta will need to wait
Which variable is the independent variable?
Answer:
P, the number of people in line ahead of Joey and Krysta is the independent variable.
Step-by-step explanation:
What is the product of twenty hundredths and sixty-five thousandths
Answer:
0.013
Step-by-step explanation:
The product of twenty hundredths and sixty-five thousandths is 0.013.
Given that, the product of twenty hundredths and sixty-five thousandths.
What is the product of two fractions?The product of two fractions is the product of the numerators and the product of the denominators.
Product of two fractions = Product of their denominators / Product of their numerators.
Twenty hundredths = 20/100
Sixty-five thousandths = 65/1000
Product = 20/100 × 65/1000
= 2/10 × 65/1000
= 130/10000
= 13/1000
= 0.013
Therefore, the product of twenty hundredths and sixty-five thousandths is 0.013.
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A four-person relay team completed a race in 60.4 seconds. On average, what was each runner's time?
Answer:
Each person did 15.1 seconds.
Step-by-step explanation: Just divide 60.4 seconds by 4 for the number of runners.
The Jones family was one of the first to come to the US. They had 5 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had:
a)at least 2 girls
b)at most 4 girls
Please use the graphing method to solve the following system of the linear equation:
Answer: I think c but im not too sure
Step-by-step explanation;
Answer:
B (4,4)
Step-by-step explanation:
if you go to desmos.com, click on graphic calculator and put your equations in you will see they intersect at point (4,4)
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Answer:
no
Step-by-step explanation:
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For any number n>1, is
|([frac{7}{25} + frac{24}{25}i)^n|
A) Greater than 1
B) Less than 1
C) Equal to 1
Answer:
$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad\ frac{a}{c}\pm\frac{b}{c}=\frac{a\pm\:b}{c}$ Since the denominators are equal ...
Step-by-step explanation:
Addition and subtraction of complex numbers works in a similar way to ... Example 1- Addition & Subtraction. a. ... (6+3)+(7−5)j=9+2j ... 25 + 30j + 9(-1)` ... our final answer is real only (it does not contain any imaginary terms. ... above - we multiply top and bottom of the fraction by the conjugate of the bottom.