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
ankoles [38]
2 years ago
14

Prove that: (1 + Tan²A) Cos²A = 1​

Mathematics
1 answer:
Artyom0805 [142]2 years ago
6 0

Step-by-step explanation:

=(1+ sin^2 A/cos^2 A).cos^2 A

=[(cos^2 a+sin^2 a)/cos^2 a].cos^2 A

=[1/cos^2 a] . cos^2 a

=1

You might be interested in
What is 3640 rounded to the nearest hundred
ikadub [295]
The answer is 3600 ;)
5 0
3 years ago
Read 2 more answers
Distribute – 10 (-10x2 + x).<br> Answer:
statuscvo [17]

Answer:

your moms weight

Step-by-step explanation:

look stop if you dont want to do your homework dont do it amd get in trouble idc you are sepose to know

7 0
3 years ago
Assume the random variable x is normally distributed with mean μ = 80 and standard deviation σ = 4. Find the indicated probabili
Schach [20]

Answer:

0.2278

Step-by-step explanation:

z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation

z => 72 - 80/4

= -2

Probability value from Z-Table:

P(x ≤ 72) = P(x = 72) => P(x < 72)

0.02275

Approximately =>0.2278

6 0
2 years ago
Eva bought popcorn, candy and a drink at the movies. The popcorn was three times as expensive as the candy and the drink was twi
aliina [53]

The cost of popcorn, drinks, and candy is 5.25, 3.5, and 1.75.

Given,

Eva bought popcorn, candy, and a drink at the movies.

The popcorn was three times as expensive as the candy and the drink was twice as expensive as the candy.

Eva spent a total of 10.50

We need to find the cost of popcorn, candy, and drink.

We have,

Let the cost of the candy be C.

Now,

The popcorn was three times as expensive as the candy.

Cost of the Popcorn = 3C

The drink was twice as expensive as the candy.

Cost of the drink = 2C

Eva spent a total of 10.50

Cost of popcorn + cost of drink + cost of candy = 10.50

3C + 2C + C = 10.50

Adding

6C = 10.50

Dividing by 6 into both sides

C = 10.50/6

C = 1.75.

Now,

Cost of the Popcorn = 3C = 3 x 1.75 = 5.25

Cost of the drink = 2C = 2 x 1.75 = 3.5

Cost of the candy = C = 1.75

Thus the cost of popcorn, drinks, and candy is 5.25, 3.5, and 1.75.

Learn more about finding the cost of items with the given total cost here:

brainly.com/question/357628

#SPJ1

6 0
1 year ago
You and two friends got jobs at stores in the mall. You earn $117.60$117.60 for 1414 hours of work. Ty earns $148.50$148.50 in 1
erica [24]
U : 117.6 / 14 = 8.40 per hr
Ty : 148.5 / 18 = 8.25 per hr
Kim : 137.6 / 16 = 8.60 per hr

highest pay rate is Kim
6 0
3 years ago
Other questions:
  • Suzanna wants to measure a board,but she dosent have a rulet to measure with. However, she does have several copies of a book th
    8·1 answer
  • Which angle description represents an angle that is greater than ninety degrees?
    5·1 answer
  • Round the following number to the nearest<br> ten thousands place<br> 56,252
    13·2 answers
  • PLEEEAAASSSSEEEE HEEEEEELLPP!!!! I WILL GIVE BRAINLIEST!!!!!!!!!
    12·1 answer
  • I NEED HELLPPPP! ASAP! PLEASE!!!!!
    8·1 answer
  • Each picture shows how a mapping, f, maps elements of a domain onto a range.
    14·1 answer
  • 1) Solve for Side A<br><br> 2) Solve for Angle B
    6·2 answers
  • IM GIVING BRAINLIEST!!PLEASE HELP!!
    10·1 answer
  • Pllsssss help <br> Explanation plsss
    13·1 answer
  • Which gestalt principle suggests that the human mind groups similar elements within an artwork where they build onto a larger co
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!