Ask question

Ask question

All categories

3 years ago

13

why is sin(90 degrees) = 1. I know that that is the answer you get when you plug it into a calculator. I need an explanation as

to why it equals 1

1 answer:

sveta [45]3 years ago

5 0

Answer:

Sin 90 = 1/1 = 1

Use trigonometry formula and a triangle with lengths of 1

You might be interested in

HEEELLLLLPPPP ME PLEASE

Kisachek [45]

A dfc is equal to bfc and that is a fact

7 0

4 years ago

Read 2 more answers

Hat term can you add to StartFraction 5 over 6 EndFraction x minus 4 to make it equivalent to One-half x minus 4?

kolezko [41]

Answer:

$\dfrac{-x}{3}$ should be added to the given equation.

Step-by-step explanation:

Let a is added to the given equation.

According to the given condition,

$\dfrac{5x}{6}-4+a=\dfrac{x}{2}-4\\\\a=\dfrac{x}{2}-4+4-\dfrac{5x}{6}\\\\a=\dfrac{x}{2}-\dfrac{5x}{6}\\\\a=\dfrac{3x-5x}{6}\\\\a=\dfrac{-2x}{6}\\\\a=\dfrac{-x}{3}$

So, $\dfrac{-x}{3}$ should be added to the given equation.

8 0

3 years ago

N - 4 = 3n + 6<br> Plz help me if possible no pics

levacccp [35]

Answer:

n=−5

Step-by-step explanation:

n−4−3n=3n+6−3n

−2n−4=6

Step 2: Add 4 to both sides.

−2n−4+4=6+4

−2n=10

Step 3: Divide both sides by -2.

−2n /−2 = 10 /−2

n=−5

4 0

3 years ago

Read 2 more answers

4(1-x) + 2x = -3( x + 1)

vlada-n [284]

Answer:

x = -7

Solution:

4(1-x) + 2x = -3( x + 1)

4(1 - x) + 2x = -3 (x + 1)

4(-x + 1) + 2x = -3 (x + 1)

-4x - 4 + 2x = -3(x + 1)

-2x + 4 = -3 (x + 1)

8 0

3 years ago

To find the weight of the golden 22 karat gold object

zaharov [31]

Multiply the objects weight by .917

8 0

3 years ago

Read 2 more answers