Prove the following:

1 + cos^2 A = 2 ( cos^4A + sin^4A)​

Answers

Answer 1

The 2 sides of the equation are not equal; hence, I cannot prove them to be true.


Related Questions

Which of the following statements is false?
Reflection over x-axis:
T(x, y) = (x, y)
Reflection over y-axis:
T(x, y) = ( x,y)
Reflection over line y = x: T(x, y) = (y, x)
O Reflection over y-axis:
T(,Y)= (x,y)

Answers

Answer:

T(x,y)=(x,y) is false

Step-by-step explanation:

HELP!!! THIS IS IMPORTANT
, aflred runs 2 1/2 miles in 3/4 of an hour.

Which unit rates are true for this situation?


3/10 miles per hour

3/10 to run a mile

3 1/3 miles per hour

3 1/3 hours to run a mile

Answers

I’m pretty sure it’s 3/10 miles per hour
I think it’s 3 1/3 miles per hour

Please Help Question in picture

Answers

Answer:

i want  to help... but there is no picture :/

Step-by-step explanation:

picture is gone D:

.

what regular polygon has an interior angle of 156 degrees

Answers

Answer:

regular pentadecagon

Step-by-step explanation:

it has 15 sides

that is what matches the exterior angled sum property - 360degree

let me explain it

1 side = 180 - 156 = 24

360/24 = 15

mark me brainliest and thank me if you like the answer

View Example
After a power fallure, the temperature in a freezer increasettat an average rate of 3.5°F per hour. The total
Increase was 17.5°F. Enter and solve an equation to find the number of hours until the power was
restored. Let x represent the number of hours it takes for the temperature to increase to 17.5°F.
Step-by-step
Video Tutor
The equation to find the number of hours until the power was restored is
Textbook
Print
The number of hours until the power was restored
is
hours
Turn it in
e Save & Close
Question 6 of 6
✓ Check Answer

Answers

Answer:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Step-by-step explanation:

yoooooooooooooooooooooooooooo

will mark brainleist pls hep

Answers

Answer: 242

Brainliest plsssssss

Answer : 242………………..

Evaluate the expression if a = 4, b = 9, and c = 1.

3b÷c1−a


–27


–9


9


27

Answers

Answer:

I used the discriminant which is √-4ac

Then I filled the numbers in, and found that 9 gets plug in for b and this becomes 9 squared, and that becomes 81. 4 is multiplied to 4 and 1 and becomes 16. Then 81 and 16 are subtracted and we get 65. We then find the square root, and will find that the answer is C.

Step-by-step explanation:

Answer:

3b÷c1−a

=3×9÷1×1-4

=27÷1-4

=27-4

=23

Solve the inequality.
3x + 5
———- <4
2

x < [?]

Answers

Answer:

[tex]x \leqslant 1[/tex]

Step-by-step explanation:

first multiply both side by 2 to get rid of the fraction

[tex]3x + 5 \leqslant 4(2)[/tex]

[tex]3x + 5 \leqslant 8[/tex]

[tex]3x \leqslant 8 - 5[/tex]

[tex]3x \leqslant 3[/tex]

[tex]x \leqslant 1 [/tex]

find the perimeter of a rectangle whose length is 4cm greater than its height, and whose area is 60 cm^2.

Answers

Answer:

32

Step-by-step explanation:

x=6

and it's x+x+(x+4)+(x+4)

Answer:

80cm

Step-by-step explanation:

Lets have height be x

Then the length would be x+4

So the area would be x*x+4=60

Solve: 2x+4=60, 2x=36, x=18

The height is 18 so the length is 22

The perimeter=18*2+22*2

Result: 80cm

1 4/8 in a improper fraction?

Answers

Answer:[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Step 1: Multiply the whole number part (1) by the denominator (8).

1 × 8 = 8

Step 2: Add the product from Step 1 (8) to the numerator (4).

8 + 4 = 12

Step 3: Write that result (12) above the denominator. So,

[tex]\frac4{8}{1}[/tex]

Step 4: The fraction [tex]\frac{12}{8}[/tex]

Can be reduced by dividing both numerator and denominator by the GCD(12,8) = 4. Thus,

[tex]\frac1{4}{8} =\frac{3}{2}[/tex]

Multiply the following expression: 12 x (- 6 1/2 )​

Answers

Answer:

 -78

Step-by-step explanation:

Simplify -6 1/2 to -13/2

Then multiply by 12

-13/2 x 12/1= -156/2

Simplify -156/2 to -78

Hopes This Helps :)

which ratio is equivalent to 4:10? Choose ALL the equivalent ratios

Answers

Answer:

2:5  

12:30

Step-by-step explanation:

A bag has 25 beads in it.the probability of picking a white bead is 3/5.how many white beads are in the bag

Answers

I think the answer is 5
There are 15 white beads in the bag. (1/5 of 25 is 5.)

BRAINLIEST
Please solve

Answers

The person above me is correct

What is the equation of the line that passes through the point (-5, 6) and has
a
slope of o?

Answers

Answer:

y = 6

Step-by-step explanation:

A line with a slope of zero is a horizontal line parallel to the x- axis with equation

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through (- 5, 6 ) with y- coordinate 6 , then

y = 6 ← equation of line

The equation of the line y= 6

Jacob R. Scored a 25 on his quiz Last week. This week he scored a 70 on his quiz. By what percent did jacobs improve his grade?

Answers

Based on his score last week and his score this week, we can say that Jacob increased his score by 180%

Jacob scored 25 in his test last week and then this week scored 70.

The increase can be found as:

= (New score - Old score) / Old score x 100%

Solving gives:

= (70 - 25) / 25 x 100%

= 180%

In conclusion, Jacob increased by 180%

Find out more at https://brainly.com/question/22444616.

elena went to a sporting goods store that was having a sale she bought a tennis racket and 3 cans of tennis balls the tennis racket is normally 43 all tennis rackets are marked done 15 percent one can of tennis balls is 4 the tennis balls are not marked done the sale tax is 8.5 how much will she pay for everything including tax

Answers

The amount that she will have to pay for everything is $52.68.

First step is to calculate the cost of 3 can of tennis ball

Cost of cans=3 x $4

Cost of cans=$12

Second step is to calculate the discount

Discount=15% x $43

Discount=$6.45

Third step is to calculate the cost of total racket

Total racket=$43 -$6.45

Total racket=$36.55

Fourth step is to calculate the amount that Elena will pay including tax

Amount=($12 + $36.55) + [($12 + $36.55)x 0.085]

Amount=$48.55 + ($48.55 x 0.085)

Amount=$48.55+$4.13

Amount=$52.68

Inconclusion the amount that she will have to pay for everything is $52.68.

Learn more about tax here:https://brainly.com/question/25033929

SOMEONE HELP ME ON THIS!!

Answers

Answer:

a) 8 ,18 year old students took part in the survey

b) 10

Solve for x.
3x - 3
4x - 6
X =
= [?]

Answers

3x-3 and 4x-6 are complementary angles meaning together they add up to 180°. Set them equal to each other. So you get 3x-3=4x-6 now simplify this. Now you have x=3 and there you have it! If you plug 3 into x in both equations it works! Hope this helps!

Answer:

x=27

Step-by-step explanation:

Same side exterior angles are supplementary when the lines are parallel

3x-3 + 4x-6 = 180

7x -9 =180

Add 9 to each side

7x-9+9 = 180+9

7x = 189

Divide each side by 7

7x/7 = 189/7

x =27

NEED HELP ON THIS EQUATION!!!​

Answers

Answer:

1.2x + 3

Step-by-step explanation:

It has to have +3 because 0 alresdy starts at 3 than use any point (I choose (5,9)) and find how much changed. The point moved 6 up and 5 to the right so divide 6/5 and get 1.2. Then test it with other points. (2,5.4) is a great example because it shows that whatever the equation is it is not 1.5 or anything above.

the two-way table shows information about the subjects studied

Answers

Answer:

  a) 62

  b) 31/45

Step-by-step explanation:

a) The table tells you there are 42 males, and 20 more females that study biology.

  42 +20 = 62 . . . are male or study biology or both

__

b) Of the total of 90 people, 62 are male or study biology (or both). The probability that any person is in that category is ...

  62/90 = 31/45 = P(male or biology)

Walmart has white tees and joggers on sale. The white tees cost $4 each and the joggers cost $6
each. You have $36 to spend. The equation 4x + 6y = 36 can model this situation where x
represents the number of white tees and y represents the number of joggers purchased.
Graph the equation and identify (3) possible combinations of white tees and joggers that can be
bought.
cost = price x quantity
4 × X
Combination

Answers

y intercept = 6
Slope = -2/3

6 joggers and 0 tees
4 joggers and 3 tees
2 joggers and 6 tees
0 joggers and 9 tees

hey guys can you help me with this question? 20 points :)

Answers

Answer:

About 7 units

Step-by-step explanation:

About 7 units would be correct. 1 + 6 is 7

however 6 isn’t an option so the next closet thing is 7

HOPE THIS HELPED :3

Answer pretty sure that’s 7

Step-by-step explanation:

Help!!! need the answer asap
Only question 6 please!!

Answers

Answer: D) additive inverse

Explanation:

The concept of the additive inverse is that we add some number x, with its opposite -x, to get 0. The two items cancel each other out.

[tex]x + (-x) = 0\\ \text{or}\\-x+x = 0[/tex]

In this case, [tex]x = \sqrt{3}[/tex]

a group of 3 people are sharing chocolates each person wants 8 chocolates and each box has 4 chocolates

Answers

Answer: not sure

Step-by-step explanation: uhhh this ain't clear. how many boxes are there?

Answer:3x8/4
I Hope This Helps

Explain with examples of your own how to find the domain and range of a function.

Answers

Step-by-step explanation:

hope it will help you....

the forces opposing the expansion of the universe are due to

Answers

The forces opposing the expansion of the universe are due to the gravitation interaction.

Hope it helped.

1,508 rounded to the nearest hundred

Answers

Answer:

1,500

Step-by-step explanation:

hope this helped!

Answer:

1500.

Step-by-step explanation:

The hundreds digit is the 5.

A the next digit ( the tens) is 0  ( < 5) it remains as 0 and the 8 becomes 0.

(6) Arrange the decimals in increasing order..
(a) 0.8, 0.25, 0.21
(b) 0.85, 3/4' 0.857​

Answers

A) 0.21, 0.25, 0.8

B) 3/4, 0.85, 0.857

hope this is helpful!

I need help with this

Answers

Answer:

X represents The value of players on the field

Step-by-step explanation:

the numbers 0-11 are showing how many people would be on the field should an official game be played

Other Questions
Divers found two substances on the bottom of the ocean. At room temperature, both substances are liquid. Scientists then transferred the same amount of energy out of both substances. When a scientist checked again, Substance 1 had changed phase, but Substance 2 had not. How are Substances 1 and 2 different? For question 1, find the x- and y-intercept of the line.-10x -5y=40A. x-intercept is 5; y-intercept is -10B. x-intercept is 8; y-intercept is -4C. x-intercept is -10; y-intercept is 5D. x-intercept is -4; y-intercept is 8 What is 11k+9=42 ? and how to do the work for it pleeeeeeeeeeeease help :)ty Shays's Rebellion demonstrated that the Articles of Confederation:A. prevented the U.S. government from handling crises within thecountryB. had given the U.S. government too much control over the states.C. made it too easy for the U.S. government to tax poor citizens.D. made the U.S. government overly focused on building a strongmilitary limx05x2 + 2x/sin(x) ????? 5x + 3y = 412x + 3y = 20show me step by steps how to do this some bacteria can digest oil how are these bacteria helpful what are the living bone cells that receive oxygen and other nutrients from small blood vessels running within the skeletal system? Which of the following does not describe slope? O A rate of change O A proportional relationshipO A line O Rise over run 1. Make sure that your time is spent _______________________ or you will regret. (use) 2. A visit to the countryside will be ______________________ to his health. (benefit) 3. Its an __________________ boy. We all are ____________________ in talking to him. (interest) 4. One ___________________ of living in the city is that the air is so polluted. (advantage) 5. Newton was one of the greatest ______________________ in the world. (invent) 6. Those companies have been completely _______________________ since last year. (computer) 7. She is always in ______________________ with us. We dont like talking to her. (disagree) 8. Parents should choose _______________________ softwares for their children. (educate) 9. Mr. Hoang has worked as a computer _______________________ for over two years. (program) 10. Im very _____________________ to Mrs. Hoa, who has helped a lot with my study. (thank) 11. Some streets in this area are being _____________________, so traveling is very hard. (wide) 12. The internet is not _____________________ in some remote areas of this country (access) Can someone help with this math problem? PLEASE HELP SOMEONE. ILL GIVE BRAINIEST.Caitlyn and Daniela are going out for pizza to their local gourmet pizza shop. They order a pizza with a total of 5 toppings. The restaurant charges 8 dollars for a pizza, plus $1 per basic topping and $2 per premium topping. The girls spend a total of $15 on their pizza. Let x = the number of basic toppings and y = the number of premium toppings. What equation accurately represent this situation? Like as a systems of equations where the two points intersect. The point where they intersect will be the answer. solve the following x2-2x-24=0 how can we make our country nepal, an ideal country? how to calculate how much taxes come out of paycheck El professor contesta la pregunta the least number by which 7203 must be divided to make the result a perfect square is____ 4. What is the central idea from paragraph one?The current conflict in Sudan is only the latest chapter in the countrys violent history. Apart from an 11-year peace from 1972 to 1983, Sudan has been entrenched in war since it became an independent nation in 1956. The Darfurian conflict erupted just as a long civil war between northern and southern Sudan was winding down. That war was fought between the mainly Muslim Arab north and the mostly non-Muslim, non-Arab south. It began in 1983 and was one of the longest-lasting and deadliest wars of the 20th century. About 2 million civilians were killed, and more than 4 million people were forced to flee their homesA. The current conflict in Sudan is only the latest chapter in the countrys violent history.B. The Darfurian conflict erupted just as a long civil war between northern and southern Sudan was winding down.C. Conflict and war have been going on almost since the beginning of Sudan, and have left millions dead and displaced.D. There were 11 years of peace between 1972 and 1983 how to write a cover letter for an internship