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
Vera_Pavlovna [14]
3 years ago
10

If sin∠X = cos∠Y and m∠X = 72°, what is the measure of ∠Y?

Mathematics
2 answers:
Nastasia [14]3 years ago
6 0

Answer:

The answer is 18.

Step-by-step explanation:

90-72=18

dezoksy [38]3 years ago
3 0

Answer:

A. 18°

Step-by-step explanation:

Using the cofunction identity

sin x = cos(90 - x)

Hence

sin72° = cos(90 - 72)° = cos18° ⇒ ∠Y = 18°

You might be interested in
20 Point!
ludmilkaskok [199]

determinant: \sqrt{b^2-4ac}

(a) x^2+4x+5=0\\D=4^2-4\cdot1\cdot5={-4}\\D

D<0 means there are no real roots. there are two complex roots with imaginary components.

(b) D=16+20=36>0

D>0 means there are two real roots

(c) D = 20^2-4*4*25 = 0

D=0 means there is one real root with multiplicity 2


7 0
3 years ago
Someone please helppp ! i’ll give brainliest to the right answer !
Nuetrik [128]

Answer:

The function is 2 I believe

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Hello, can someone pls help me ty!​
max2010maxim [7]

Answer:

C, 5/2

Step-by-step explanation:

3 I2x -1I + 4 = 16

Isolate absolute value:

3 I2x -1I + 4 - 4 = 16 - 4

3 I2x -1I= 12

(3 I2x -1I) / 3 = 12 / 3

I2x -1I= 4

Since the question is only asking for the positive, all you need to solve for is the +4. Solve for x

2x -1 = 4

2x -1 + 1 = 4 +1

2x = 5

2x / 2 = 5 / 2

x = 5/2 or C

7 0
3 years ago
Solve
dedylja [7]

Answer:

At the end of "Samuel's Memory, Samuel's feelings change from confusion and fear to anger and hate because his mother dies and he feels that he is all alone (C).

Step-by-step explanation:

6 0
2 years ago
A radio transmission tower is 170 feet tall. how long should a guy wire be if it is attached 15 feet from the top and is to make
beks73 [17]
The image of the given scenario is attached below.

A right angled triangle is formed, with one angle equal to 27 degrees. The perpendicular side is 155 and we are to find the length of guy wire which makes the hypotenuse of the right angled triangle.

Using the formula of sine, we can write:

sin(27)= \frac{155}{x}  \\  \\ &#10;x= \frac{155}{sin(27)} \\  \\ &#10;x=341

Rounding to nearest whole number, the length of the guy wire that must be attached is 341 feet. 

5 0
3 years ago
Other questions:
  • Geometry help needed, please?
    8·1 answer
  • Is the following relation a function {(3, -5), (1,2), (-1, -4), (-2, 2)
    12·2 answers
  • Cost $4 since 0.25•20=4. Together,they would cost Jada $6 , leaving her with $6 . 35 ounces of peanuts. If Jada wants 20 ounces
    14·1 answer
  • I need help with this question ( see image). Please show workings.​
    5·1 answer
  • 11. A gift store owner used 9 rolls of wrapping paper to
    8·2 answers
  • Find the circumference of the circle. Use 3.14 for . Round to the nearest hundredth,.12.5 in. The circumference of the circle is
    15·1 answer
  • Divide £208 in the ratio 3:1<br><br> How do I do this??
    12·1 answer
  • The equation of the line graphed below could be which of the following?<br><br> Please help ASAP
    6·1 answer
  • Reduce 12/20 to lowest term
    15·1 answer
  • Rita needs to replace the ink cartridge for her printer. She found four brands that make replacement cartridges. The table below
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!