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
dalvyx [7]
3 years ago
14

Help me plz I'm doing a test and I need help lol

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

BC = BA

Step-by-step explanation:

You might be interested in
A bike wheel with a diameter of 14 inches makes 100 rotations. How far does the bike go?
mars1129 [50]
1,400 inches or 116.7 feet
4 0
4 years ago
9 cos(sin¯¹(x)) = √81 – 81x²
Ira Lisetskai [31]

The equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

To answer the question, we need to know what an equation is

<h3>What is an equation?</h3>

An equation is a mathematical expression that show the relationship between two variables.

Given 9cos(sin¯¹(x)) = √(81 – 81x²), we need to show L.H.S = R.H.S

So, L.H.S = 9cos(sin¯¹(x))

= 9[√{1 - sin²(sin¯¹(x)}] (Since sin²y + cos²y = 1 ⇒ cosy = √[1 - sin²y])

9[√{1 - sin²(sin¯¹(x)}] = √9² × √{1 - sin²(sin¯¹(x)}]

= √[9² × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - x²}]   (since sin²(sin¯¹(x) = [sin(sin¯¹(x)]² = x²)

= √(81 – 81x²)

= R.H.S

So, the equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

Learn more about equations here:

brainly.com/question/2888445

#SPJ1

6 0
2 years ago
A surveyor wishes to lay out a square region with each side having length
SSSSS [86.1K]

This would represent the perimeter or area of the square region.I believe the answer points to how much is the perimeter and area of the lay out region.  
Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
6 0
3 years ago
Can somebody please tell me what 1/2x3/4 is.
Ad libitum [116K]

Answer: 3/8

Step-by-step explanation:

1/2 × 3/4

Multiply the numerators: 1 × 3 = 3

Multiply the denominators: 2 × 4 = 8

I hope this is clear, have a great day.

8 0
3 years ago
Read 2 more answers
Solve equation by using the quadratic formula.<br> 25x^2 + 60x = -36
wariber [46]

...........................

8 0
3 years ago
Other questions:
  • Subtract. Then, in two or more complete sentences, explained how you found the difference. In your explanation, make sure to inc
    11·2 answers
  • A shopping centre wants to examine the amount of space required for parking. Studies indicated that 50% of staff and shoppers us
    12·1 answer
  • For every 30 letters that Maria sent in a month, she received 40 letters. What is the ratio in simplest form of the number of le
    13·1 answer
  • A file that is 278 megabytes is being downloaded. If the download is 19.9% complete, how many megabytes have been downloaded? Ro
    10·1 answer
  • Brian runs 7 miles in 80 minutes. At the same rate, how many miles would he run in 64 minutes?
    9·1 answer
  • The school chef put 3 apple pies, 2 blueberry pies, 4 peach pies, and 1 lemon pie in the oven to bake. At the start of lunch she
    5·1 answer
  • NEED HELP DUE TODAY !
    13·1 answer
  • HELPPPP PLEASEEEE. DUE IN 10 MINUTES ​
    13·1 answer
  • PLEASE ANSWER if u answer this without answering questions i am reporting you
    10·2 answers
  • Put the following equation of a line into slope-intercept form, simplifying all
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!