1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreev551 [17]
3 years ago
14

PLEASE HELP ME I BEG

Mathematics
1 answer:
Kay [80]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• 1 + cot²x = csc²x

Consider the left side

csc^{4} x - cot^{4} x

Factorise as a difference of squares

= (csc²x - cot²x)(csc²x + cot²x)

= (1 + cot²x - cot²x)(csc²x + cot²x)

= csc²x + cot²x

= csc²x + csc²x - 1

= 2csc²x - 1 = right side ⇒ verified




You might be interested in
Bertie Bee's Carpet Cleaners charge $1.22 per square foot to clean carpets. Millie Mott's Carpet Cleaners charge $9.50 per squar
Crank

Answer:

Bertie Bee's Carpet Cleaners

6 0
3 years ago
The height of a triangle is 4 times its base. if he are of a triangle is 200cm, what is the height
uranmaximum [27]
A = (h * b) / 2
A = 200
h = 4b

200 = (b(4b) / 2
200 * 2 = b * 4b
400 = 4b^2
400 / 4 = b^2
100 = b^2
sqrt 100 = b
10 = b ..... base is 10 cm

h = 4b
h = 4(10)
h = 40 <=== height is 40 cm
3 0
3 years ago
You use about 15 gallons of water when you shower. If you take 20% less time when you shower, estimate how many gallons of water
PIT_PIT [208]
I would have to say 85 but thats just a guess.
8 0
3 years ago
Identify the coefficient(s) of the variable in the expression below.
tankabanditka [31]

Answer:

D

Step-by-step explanation:

25 and 6

Coefficient is the number in front of the unknown variable

3 0
3 years ago
Read 2 more answers
Debby, Ella and Unique invest $10,000 each into an oil company. Debby owns 2000 $1 common stocks, Ella owns 1000 of 5% $50 prefe
Mashutka [201]

Answer:

Ella has the greatest return in the current year.

Step-by-step explanation:

Debby would receive $0.80 for each of her 2000 common stock in the oil company,hence Debby's return on investment in the current year is $1600($0.80*2000)

Besides,Ella's return on the stock investment in the current year is computed thus:

Ella's return= 5%*1000*$50=$2,500

In addition,Unique's dollar return on the investment is computed as follows:

Unique's return on  investment=4%*2000*$20=$1,600

From the above computations,Ella seems to have the highest return in the current year of $2,500 whereas the two others managed to have $1600 return each

5 0
3 years ago
Other questions:
  • What can you do when the unit prices for two comparable items are listed using different units of measure?
    14·1 answer
  • ~please only answer if you know for sure~<br> Thanks :)
    11·2 answers
  • Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit
    5·1 answer
  • I also have 2 more questions. What metric unit should you use to measure the mass of a monkey ?
    9·2 answers
  • Need help with this math ​
    11·1 answer
  • A candle maker adds lemon oil to wax to make the lemon-scented candle shown. How many ounces of oil will he need for the candle
    8·1 answer
  • I need help with this question plz
    5·2 answers
  • Please help me with 7 8 9 10 and 11
    8·2 answers
  • Help pls
    12·1 answer
  • Which of the following rational functions is graphed below?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!