1
2. Verify that (1 - cos^20) CSc^20 =
(4 Points)

Answers

Answer 1
(1-cos^2(x)) csc^2(x)=1

one of the trigonometry rules is sin^2(x) + cos^2(x) = 1 if you rearrange this you realize that sin^2= 1-cos^2(x)

we also know that csc^2(x)= 1/sin^2(x) so now you can rewrite your equation as:

sin^2(x) x 1/sin^2(x) = 1

sin^2(x)/sin^2(x) =1

the LHS (left hand side) can cancel down to 1 because the numerator and denominator are the same

so then 1=1 Therefore LHS=RHS

Hope this helps

Related Questions

Janet needs 1.25 ft of fabric to make a scarf. If she buys a 20 yd roll of fabric, how many scarves can she make?

Answers

Answer:

the answer is 16 i think

Step-by-step explanation:

you need to divide 20 and 1.25 and you will get 16 so the answer is 16

please please please please please please please please please please please please help help please​

Answers

Answer:

x=5

Step-by-step explanation: you can look the the line. If the line is vertical, then the equation should be x=(the number). if the line is horizontal, the y=(the number that the line is going through to)

There is a bag with 6 marbles. Three marbles are blue, 2 are red and 1 is green. What is the probability that you will randomly select a red marble? A green marble? What is the likelihood of those probabilities? Mike answered: The probability of selecting a red marble is 2 and that is likely. The probability of selecting green is 1 and that is certain. If yes, explain in writing, using appropriate vocabulary, why you agree with him. If no, explain in writing what mistakes Mike has made and justify your reasoning. Be sure to give the correct answers in your justification. Is Mike correct?

(PLEASE HELP THANK YOU)

Answers

Answer:

Mike is not correct.

Step-by-step explanation:

The probability is an "out of" statement. meaning out of all 6 marbles if 2 are red how what is the probability of choosing a red marble the answer is 2 out of 6 or 1/3 or 0.3333333etc. For green the probability is 1 out of 6 or 1/6 or 0.16666666etc

On a test, 4 students receive an 84%, 3 students receive a 72%, and 2 students receive an 89%. What is the average test score for the group of students?

Answers

The answer to this would be about 81.1

Will give brainliest to the correct answer and explanation. I’m having trouble solving it.

Answers

it will equate to about 4.44
It will be around -4.44

WILL GIVE BRAINLIEST!!!!!!!!
A substance decays 35% each day. After 8 days, there are 8 milligrams of the substance remaining. How many milligrams were there initially?
251 milligrams
3 milligrams
45 miligrams
126 milligrams

Answers

126 hope that helps :)))
126 milligrams hope this helped!

A tax of 7% was added on to the cost of a meal. If the tax paid was $1.40, what was the cost of the meal?

Answers

Answer:

The cost of meal is: $20

Step-by-step explanation:

Given

Percentage of tax = 7%

Also given that the amount of tax is $1.40

Let x be the price of meal

Then the tax will be 7% of x

It can be written mathematically as:

[tex]1.40 = 7\%\ of\ x[/tex]

We will simply solve this equation to get the price of meal

So,

[tex]1.40 = 0.07*x\\x = \frac{1.40}{0.07}\\x = 20[/tex]

Hence,

The cost of meal is: $20

In parallelogram ABCD, angles A and C are opposite angles and angles B and D are opposite angles. If the measure of angle C is 104°, what is the measure of angle D?

Answers

The answer is 104 degrees

What is the solution to the system of equations graphed below?

Answers

Answer:

The picture's not loading

Step-by-step explanation:

Adam bike 15 miles in 3 hours. Ben bike 12 miles in 2 hours. What was there speed?

Answers

Adam: 15 miles / 3 = 5Mi/Hr
Ben: 12 miles / 2 = 6Mi/Hr
Hope this helps!

The quadrants of the standard (x,y) coordinate plane are labeled in the figure shown. In which quadrant, if any, do the lines x = -1 and y = 7 intersect?
A. I
B. II
C. III
D. IV
E. The lines do not intersect.

Answers

Answer:

I think II

Step-by-step explanation:

set are all of the numbers solutions to the inequality x < -3

Answers

Answer:

Step-by-step explanation:

Any negative number starting from -4. The larger a negative number is, the smaller it becomes especially since it will be farther away from 0.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

The cell phone price was originally $457. It is now being sold for $318. State the change to the nearest percent


I really need help

Answers

Answer:

30.4%

Step-by-step explanation:

Given data

originally price $457

new price= $318

Required

The percent mark down

Percent markdown= original- new/original*100

substitute

Percent markdown= 457- 318/457*100

Percent markdown= 139/457*100

Percent markdown=0.304*100

Percent markdown=30.4%

Hence the price was reduced by 30.4%

For every 8 tarts the bakery sells, 3 go to waste. They sell 40 in one week. How many go to waste?

Answers

Answer:

24

Step-by-step explanation:

8-3=5 good tarts per batch

40/5=8 batches

8*3=24 wasted

SLOPE AND RATE OF CHANGE
Part I: Match each blank with the correct vocabulary term at the right.
A. Positive
B. Undefined
C. Run
1. The vertical change on a graph is described as the
2. The horizontal change on a graph is described as the
3. The slope of a horizontal line will always be
4. The slope of a vertical line will always be
5. A graph with a
slope increases from left to right.
6. A graph with a
slope decreases from left to right.
D. Zero
E. Negative
F. Rise
Enter your answer

Answers

Answer:

1. rise

2. run

3. zero

4. undefined

5. positive

6. negative

What does Valencia mean

Answers

it means strong or healthy it’s from a latin origin

help pls 6th grade math

Answers

Answer:

All of them are correct except for the last one which is incorrect

Step-by-step explanation:

All you need to substitute the answers given for "r" and see if its less than or equal to 2

- 3.5 [tex]\leq[/tex] 2 Correct (negative numbers are always smaller than a positive number)

- 2 [tex]\leq[/tex] 2 Correct (negative numbers are always smaller than a positive number)

-1 [tex]\leq[/tex] 2 Correct ( negative numbers are always smaller than a positive number)

0 [tex]\leq[/tex]  2 Correct ( 0 has a value much more less than the value of 2)

2 [tex]\leq[/tex] 2 Correct (they both have the same value as "2")

4 [tex]\frac{1}{4}[/tex] [tex]\leq[/tex]  2 Incorrect ( 4 [tex]\frac{1}{4}[/tex] has a much more greater value than 2, therefore this is incorrect)

28775 tickets are sold for a football match. Children’s tickets cost £15. The ratio of children to adults is 9:16.
If the total ticket sales makes £615785, what is the difference between the price of an adults ticket and a children’s ticket?

Answers

Answer:

Difference = £10

Step-by-step explanation:

Represent adult with A and children with C

[tex]A + C = 28775[/tex]

[tex]C : A = 9 : 16[/tex]

[tex]Sales = 615785[/tex]

Required

Determine the difference in price of both tickets

[tex]A + C = 28775[/tex]

Convert ratio to fraction

[tex]C : A = 9 : 16[/tex]

[tex]\frac{C}{A} = \frac{9}{16}[/tex]

Cross Multiply

[tex]16C = 9A[/tex]

Make C the subject

[tex]C = \frac{9}{16}A[/tex]

Substitute [tex]C = \frac{9}{16}A[/tex] in [tex]A + C = 28775[/tex]

[tex]A + \frac{9}{16}A = 28775[/tex]

Take LCM

[tex]\frac{16A + 9A}{16} = 28775[/tex]

[tex]\frac{25A}{16} = 28775[/tex]

Multiply both sides by 16

[tex]16 * \frac{25A}{16} = 28775*16[/tex]

[tex]25A= 28775*16[/tex]

[tex]25A= 460400[/tex]

Make A the subject

[tex]A = \frac{460400}{25}[/tex]

[tex]A = 18416[/tex]

Substitute 18416 for A in [tex]C = \frac{9}{16}A[/tex]

[tex]C = \frac{9}{16} * 18416[/tex]

[tex]C = \frac{9* 18416}{16}[/tex]

[tex]C = \frac{165744}{16}[/tex]

[tex]C = 10359[/tex]

If a children ticket costs £15, then total children tickets cost:

[tex]Children = 10359 * 15[/tex]

[tex]Children = 155385[/tex]

The total sales is given as:

[tex]Sales = 615785[/tex]

So, the total cost of adult ticket is:

[tex]Adults = 615785 - 155385[/tex]

[tex]Adults = 460400[/tex]

Recall that number of adults is: 18416

So, an adult ticket costs

[tex]An\ adult\ ticket = \frac{460400}{18416 }[/tex]

[tex]An\ adult\ ticket = 25[/tex]

So, we have that:

Children Ticket = £15

Adult Ticket = £25

The difference is:

Difference = £25 - £15

Difference = £10

Trina is 53 3/ 4 inches tall. Jillian is 1 1/ 2 inches taller than Trina and Jane is 1 1 /5 inches taller than Jillian. How tall is Jane?

Answers

Answer: Jane is 56 9/20 inches tall

Step-by-step explanation:

Trina 's height = 53 3/4inches

Jiliam height = 1 1/ 2 inches taller than Trina  which means

53   3/4inches +   1   1/ 2 inches

Add whole numbers to whole numbers and fractions to fractions

53+ 1   3/4 + 1/2

54 (3+ 2)/4 = 54 5/4 = 54+ 1  1/4 = 55 1/4 cm

Jane is 1 1 /5 inches taller than Jillian which means

55 1/4 cm +1 1 /5 inches

Add whole numbers to whole numbers and fractions to fractions

55 + 1  1/4 + 1/5

56   (5 + 4)/20 = 56 9/20

the number of employees for a certain company had been decreasing each year by 8%. If the company currently has 860 employees and this rate continues, fund the number of employees in 19 years.

Answers

Answer:

approximately 684 employees

Step-by-step explanation:

So this is an exponential equation since there is a dividing decrease, not just subtracting. The standard equation is,

[tex]y = a(b)^{x} [/tex]. [tex]a[/tex] is initial value (860 employees) and [tex]b[/tex] is the change [tex]-8%[/tex] or [tex]0.92[/tex]. The [tex]x[/tex] would be the period of time, [tex]19[/tex]. This equation would be [tex]y = 860(0.92)^{19} [/tex].

After solving, the equation would become the following: [tex]y = 860(0.92)^{19} = 176.387242442≈176[/tex]. After subracting the number of lost employees from orginal employees ([tex]860-176=684[/tex]), we see that the company will have approximately 684 employees left after 19 years.

can u just tell me where to put it instead of pics cause i cant see pics like 4 and 3 up sum like that please

Answers

Answer:

(1.5, 0)

(0, 1)

Answer:

Add a point in the graph where 1 is (plot it in the line that is vertical) then from that point go down 2 and to the right 3 then just continue doing that

Explanation:

Hope this helped if u have any questions feel free to ask :)

What is the distance from P to Q? A. 25 units B. 7 units O C. 5 units D. 1 unit​

Answers

Answer:

7 units you can count it too LOL

Step-by-step explanation:

Answer: 5 units

Step-by-step explanation: apply the distance formula. sqrt(x2-x1)^2+(y2-y1)^2. solve and you get sqrt 25, which is 5 units. Search up distance formula. It's basically the Pythagorean theorem.

How many uniqe ways are there to arrange the letters in the word IRON

Answers

Answer:

24

Step-by-step explanation: I searched it up

Answer:

24 unique ways

Step-by-step explanation:

Which of the following equations is non-linear?

a. x + 5y = y + 15
b. x + 15x + 30x - 15 = 10y - 15
c. 11x = 5y + 10 - x
d. 3x + 1 = -4x + 12 -2y 2

Answers

D--because it has y^2 in the equation and to isolate y you have to take the square root, the graph is going to be curved rather than linear.

The diameter of a baseball is approximately 3 inches. What is its volume? Round your answer to the nearest whole number.

A. 9 in^3

B. 13 in^3

C. 113 in^3

D. 14 in^3​

Answers

Answer:

D  Volume = 4/3

If the diameter is 3 inches the radius will be 1.5.

If you plug that in you get

V = 4/3

V=14.137

Step-by-step explanation:

hope this helps have a good day :) ❤

Volume = 14 (rounded to the nearest whole number)

Volume = 4/3 pie r^3

If the diameter is 3 inches the radius will be 1.5.

If you plug that in you get

V = 4/3 pie 1.5^3

V=14.137

So the answer is D. 14 in^3​.

What is a volumetric formula?

The basic formula for the area of ​​a rectangle is length x width, but the basic formula for volume is length x width x height. No matter how you refer to the various measurements, the calculation does not change. For example, you can use "depth" instead of "height".

Degree of loudness or intensity of noise: Loudness. 2: Amount of space occupied by 3D objects, measured in cubic units (quotes, liters, etc.): Cubic capacity-See metric table, weights and measures table.

Learn more about Volume here: https://brainly.com/question/463363

#SPJ2

There are five 6-inch sticks and five 10-inch sticks. These sticks can be attached end-to-end to make longer sticks. For example, you can take two 6-inch sticks and one 10-inch stick to make a 22-inch stick (6 + 6 + 10 = 22).How many different lengths of stick can be made out of at least one of the sticks?

Answers

if you divide all of them together starting inside of the parentheses you will get the wrong answer bc I’m just typing random thing

Can someone help me me I think I'm bad at this honestly..

Answers

The answer is D for this problem. Btw u can use a site called deez
The answer is most likely going to be d :)
Hopefully it’s right.

please help me on this will give brainliest

Answers

Answer:

(m x 2)+10

Step-by-step explanation:

Answer:

2m+10

Step-by-step explanation:

First you write down 10. Then, you see that the “More than” is there and that indicates that the expression is flipped, but added to the next part of the word problem, which makes it +10. Next you see that it‘s twice Mabel’s height which is 2*m which is then 2m. Then you put the expressions together and get 2m+10. Hope this helps.

7 points
1. Original points (1,3), (3,2), and (4.2) are drawn on a graph and transformed to points
(-1,3), (-3,2), and (-4,2). Which rule describes the transformation performed? *
(x,y) -> (-x, y) because the triangle was reflected over the y-axis
(x,y) -> (x,-y) because the triangle was reflected over the x-axis
(x,y) -> (x, y - 2) because the triangle was translated 2 units down
O
(x,y) -> (x, y-6) because the triangle was translated 6 units down

Answers


(x,y) -> (-x, y) because the triangle was reflected over the y-axis

Andy and Jordan's are playing a game that involves tossing two dice numbered one to six, and recording the sum of the two how many different sums are possible? What is the greatest possible sum? I’ll mark u brainlesst or wtv it’s called

Answers

Answer:

there are 11 diffrent sums and the greatest sum is 12

Step-by-step explanation:

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