PLEASE HELP!
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Answers
Part 1
Ying is correct while Jabbar is incorrect. The polar form would have cosine listed first, then sine later. The sine term always has the imaginary 'i' attached to it. It's fairly easy to mix these trig functions up. One way to remember is to think alphabetical order (C is before S, cosine before sine). Other than this difference, the two students have identical steps.
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Part 2
Ying made the error this time. Jabbar is correct. When using a unit circle, you should find that
cos(pi/2) = 0
sin(pi/2) = 1
The point (x,y) on the unit circle that corresponds to the angle theta will help us see this. Note how x = cos(theta) and y = sin(theta).
Side note: Jabbar now has the correct order of cosine and sine (see part 1 above).
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Part 3
Ying made the error of adding the r values. Instead, you should multiply them like Jabbar did. The theta angle values are the terms we add up. An interesting thing to notice is that Ying computed cos(pi/2) = 0, which contrasts to the mistake made in part 2.
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Part 4
Ying is correct. You divide the r values, and the order of division is important. The order of division is from left to right. We have 7 on the left and -2 on the right, so that's why Ying ended up with the correct new r value of -7/2. Jabbar swapped the order incorrectly. The same issue shows up when subtracting the theta values. Keep in mind that the order of subtraction is important. Something like 2-3 = -1 is not the same as 3-2 = 1. Ying has the correct order of subtraction for those theta values.
Related Questions
Please help be geniune how many times do I need to say NO LINKS god . I will mark brainliest please help :(
Answers
Answer:
answer: 510 square feet
Review the graph of function g(x). On a coordinate plane, a line goes from open circle (0, 0) through (negative 4, 2). A curve goes from the open circle to (2, 1) and then down through open circle (4, 0). A closed circle is at (4, negative 2). Which table identifies Limit as x approaches 0g(x) and Limit as x approaches 4g(x), if they exist? Limit of g (x) as x approaches 0 0 Limit of g (x) as x approaches 4 0 Limit of g (x) as x approaches 0 DNE Limit of g (x) as x approaches 4 DNE Limit of g (x) as x approaches 0 0 Limit of g (x) as x approaches 4 −2 Limit of g (x) as x approaches 0 DNE Limit of g (x) as x approaches 4 −2
Answers
Answer: A. 0,0
Step-by-step explanation:
edge2021
Answer:
A)
Step-by-step explanation:
got it right on edge :) good luck!
vv I've attached the image of the question below so you can be sure
What is the place value of the seven in the number 71,432,855
Answers
Answer:
ten millions
Step-by-step explanation:
8. If you choose from the following M&M colors, what is the probability
that you choose blue? 5 green, 6 yellow, 8 blue, 7 brown *
8/25
04/13
O 1/3
08/26
Answers
Answer:
8/26
Step-by-step explanation:
there are 8 blue out of a total of 26 in total
Hey please help be geniune please help me no links will mark brainliest :( !
Answers
Answer:
71 - Maybe
Step-by-step explanation:
11 x 7 = 77
11 - (4 + 4) = 3
2 x 3 = 6
77 - 6 = 71
What volume of concrete is required to build this footbridge?
2m wide
4m tall
2m long
Answers
Answer:
16m²
Just find the volume by multiplying the length, width, and height
Step-by-step explanation:
What will the width of the paper need to be
Answers
Answer:
the paper need to be 16 inches
You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a system with the same solution? 5x+3y=5 8x + 2y = 6 A) subtract 3 times the second equation from 2 times the first equation B) add 4 times the first equation and -6 times the second equation multiply the first equation by 3 and subtract the second equation D) multiply 3y by z in the first equation and subtract the second equation
Answers
Answer:
13x 5y
Step-by-step explanation:
What is the measure of each angle in a regular nonagon?
Answers
Answer:
Each angle of a regular nonagon is 140°
Step-by-step explanation:
The sum of all the interior angles is equal to 1260°
URGENT MARKING BRAINLIEST
Answers
Answer:
See expanation below
Step-by-step explanation:
Fried: 16/50 = 32%
Boneless: 10/50 = 20%
Baked: 6/50 = 12%
Buffalo: 18/50 = 36%
A paint can has a diameter of 17 centimeters and a height of 24 centimeters. What is the surface area of the can? 2.775 76 cm 2 o 1734 85 cm 2 O 1494 64 cm2 4.377 16 cm 2
Answers
Answer:
1734.85
Step-by-step explanation:
Answer:
the correct answer is 1,734.85cm2
Step-by-step explanation:
i did the assignment and got it right
Someone help with this please
What number is this? A 5 digit number, All but last are even, Goes from least to greatest except the first number, 2 repeats, 2nd number is 4.
Answers
Answer:
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answers
Answer:
C i think
Step-by-step explanation:
The variable g represents the number of guests, and the variable c represents the cost in dollars. If there are 10 guests, how much will Anne's retirement party cost? $
Answers
Answer:
Cost (10 guests ) = 50
Step-by-step explanation:
Given : Cost c = 10 + 4g (g refers to guests)
Equation : c = 10 + 4g
Putting no. of guests 'g' = 10
c = 10 + 4 (10) = 10 + 40
c = 50
Cheddar cheese cost 5.25$ per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese? Best answer gets brainlist
Answers
Answer: y = 5.25x
Step-by-step explanation:
The cost of one pound of cheddar cheese is $5.25.
The number of cheese purchased is x.
The total cost of cheese would therefore be the cost of one pound of cheese multiplied by the number of pounds of cheese purchased:
= 5.25 * x
Full expression is therefore:
y = 5.25 * x
y = 5.25x
The circumference of a circle is 15π units. How many units long is its diameter? (Use only the digits 0 - 9 and the decimal point, if needed, to write the answer.)
Answers
Answer:
The answer is c
Step-by-step explanation:
7, 3, 5, 6, 4, 8, 4, 7, 8, 8
Mean__
Median__
Mode__
Range__
Answers
Answer:
Mean: 6
Median: 6
Mode: 8
Range: 5
Step-by-step explanation:
Mean: is the sum of all numbers divided by the amount of numbers.
Median: the middle number.
Mode: the number that is often being occurred.
Range: the difference between the beginning number and the ending number.
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Mean: 7 + 3 + 5 + 6 + 4 + 8 + 4 + 7 + 8 + 8 = 60 divided by 10 equals 6.
Median: 7, 3, 5, 6, 4, 8, 4, 7, 8, 8. The median is between those numbers so we're going to identify the number between 4 and 8. well obviously is 6 but if you want to do some math then add the two medians and then divided by two.
Mode: 7,3,5,6,4,8,4,7,8,8. The mode in this case is 8 because it is being used the most out of all of the other numbers.
Range: 7, 3, 5, 6, 4, 8, 4, 7, 8, 8. the range is 5 (in this case) because it is the difference between the largest number and the smallest number.
The length of a shadow of a building is 26 m. The distance from the top of the building to the tip of the shadow is 37 m. Find the height of the building.
Answers
Answer:
26.3 m
Step-by-step explanation:
The length of a shadow of a building is 26 m. The distance from the top of the building to the tip of the shadow is 37 m. Find the height of the building.
We solve the above question using Pythagoras theorem
c² = a² + b²
Where
c = Longest part of the triangle = 37 m
a = Height of the triangle = ?
b = Length of the shadow = 26 m
Hence:
37² = a² + 26²
a² = 37² - 26²
a = √37² - 26²
a = √(693)
a = 26.324893162m
Approximately = 26.3 m
Im just wasting points :) Ignore this
Answers
Rewrite the function f (x) =-3(x + 2)2 + 7 in the form f(x) = ax++bx+c.
Answers
Answer:
f(x)= -3x² - 12x - 5
Step-by-step explanation:
-3(x+2)² + 7
-3(x+2)(x+2) + 7
(-3x-6)(x+2) + 7
-3x² - 6x - 6x - 12 + 7
-3x² - 12x - 5
find the value of x and show your steps
Answers
Answer:
x = 4
Step-by-step explanation:
The image provided below, I find very helpful when trying to solve difficult problems such as this one.
We use the same relationship, the only difference is we are given expressions and numbers for the segments
If the product of the segments in one chord equal the product of the segments in the other chord then,
x * 6 = 8 * ( x - 1 )
Or 6x = 8 ( x - 1 )
Now we solve for
Step 1 distribute the 8
8 * x = 8x
8 * -1 = -8
We now have 6x = 8x - 8
step 2 subtract 8x from each side
6x - 8x = -2x
8x - 8x cancels out
we now have -2x = -8
step 3 divide each side by -2
-2x / -2 = x
-8 / - 2 = -4
we're left with x = 4
Can someone explain how to do problems like
(-2+4) or (4+ -6)
Answers
Answer:
All you have to do is just add the numbers inside the parenthesis. (4+-2) is the same as 4-2 which is equal to 2. (4+-6) is the same as 4-6 which is equal to -2.
Step-by-step explanation:
If this has helped please mark as brainliest
Answer:
Step-by-step explaination
-2 + 4 is 2 4+ -6 is -2
how do I find the equation for the line?
Answers
Answer:
The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.
Using the extreme value theorem, which graph has a maximum of 5 and minimum of -3?
Answers
Answer:
B
Step-by-step explanation:
EDGE
A juice can is 16cm tall and has a diameter of 9cm. The ends of the can are tin and the body is cardboard.
What is the volume of the can?
What area of tin is used?
What area of cardboard is used?
What is the total area surface?
Answers
Answer:
a)1017.88 cm³
b)63.62 cm² (corr. to 2 d. p.)
c)452.39 cm² (corr. to 2 d. p.)
d)579.63 cm²
Step-by-step explanation:
a) Volume = π x r x h = π x (9/2) x 16 = 1017.88 cm³
b) area of tin is used = circle = π x (9/2)² = 63.62 cm² (corr. to 2 d. p.)
c) area of cardboard is used = 2 x π x (9/2) x 16 = 452.39 cm² (corr. to 2 d. p.)
d) total area surface = 2(63.62) + 452.39 = 579.63 cm²
PLEASE HELP!!
Type the correct answer in the box.
If the measure of angle 0 is 7/6. The equivalent measurement in degrees is
|blank| °
Answers
Answer:
the angle in degree is 30°
If the measure of the angle in radian form is 7π/6 then it is 210° in degrees form.
What is angle?An angle is basically an inclination of surface towards a object. It is measured in degrees as well as in radian.
How to convert angle into degrees?We have been that the angle is 7π/6 and we have to convert this angle into degrees.
We have to just put π=180 to convert the radian form into degrees.
Angle=7*180/6
=7*30
=210°
Hence if the measure of the angle in radian form is 7π/6 then it is 210° in degrees form.
Learn more about angles at https://brainly.com/question/25716982
#SPJ2
Please help!! Due soon!! It's multiple choice!! Can you PLEASE try to show the work? I will give you brainliest!! Please answer all! thank you!!!!! :) ANY LINKS=REPORTED!
Answers
(4x + 2) is equal to 150 because they are vertical angles. When two lines intersect, on the opposite sides of the x like these are will be equal to one another. So let’s make them equal to each other.
4x + 2 = 150
Subtract 2
4x = 148
Divide by 4
x = 37
So it will be A
17)
The two angles added up with each other
34 + 146 = 180
Since these two add up to 180 degrees, they would be supplementary angles.
So, H
18)
The two angles will make a 90 degree angle (as shown with the little box formed in the corner)
When angles add up to make 90 degrees, they will be complimentary angles.
So, C.
-9-(-6)÷6 how do i do this
Answers
Step-by-step :
-9-(-1)
-9+1=-8
Determine wheather the graphs of y = 2x+1 and y=-3X-7 are parallel, perpendicular, coincident, or none of these
Answers
Answer:
The two graphs are perpendicular
Step-by-step explanation:
The slope of the first one is the reciprocal of the second. Also I graphed it.
What is the area of the hexagon below? only real answers
Answers
Answer: 24 m squared
Step-by-step explanation:
Lets break this down step by step. When you see an irregular polygon and want to find the area, you can break it down into smaller shapes.
I have split the shape into a parallelogram and a rectangle.
Area of parallelogram : 6*2 (formula = bh)
Area of rectangle: 6*2 (formula = bh)
Now we add the areas of both the parallelogram and rectangle together to get 24m squared.
Answer:
24 m²
Step-by-step explanation:
2 + 2 = 4
4 × 6 = 24
24 m²