How do you write the cos 18° in terms of the sine.

Answers

Answer 1

Answer: It's sine of 90-18, that is, sine of 72 degrees.

Related Questions

Complete the solution of the equation. find the value of y when x equals -8 8x+8y=-48
A company will pay Becky $120 for her first sale. For each sale after that, they will pay her an extra $31.50 per sale. How many sales will Becky have to make to earn at least $2000?
Can someone help me with math?I need it REALLY FAST PLS HURRY
The average thickness of books on a library shelf is 8.3 centimeters. The standard deviation is 0.6 centimeter. If 20% of the books are oversized, find the minimum thickness of the oversized books on the library shelf. Assume the variable is normally distributed.
the hypotenuse of a right triangle is 16 and one of the angle is 45 . find the length of the side opposite to that angle ?

Factoring the difference of two squares x^2-1

Answers

difference of 2 perfect squres
if yo have
a^2-b^2 that equals (a-b)(a+b)

x^2-1^2=(x-1)(x+1)
tada

(X^2-1^2) (x-1)(x+1) I hope that is good!

Find the unknown length. Round to the nearest tenth if necessary.

Answers

Answer:

a = 7.4

Step-by-step explanation:

Since this is a right triangle, we will use the Pythagorean theorem:

c^2 = a^2 + b^2

28^2 = a^2 + 27^2

784 = a^2 + 729

55 = a^2

a = 7.4

Answer:

55 i believe

28 + 27 = 55

Sparkle is 464 mm long and twilight is 46 cm long which of Amelia's cats is longer

Answers

If Sparkle is 464 mm long and twilight is 46 cm long then Sparkle is longer than Twilight by 4 mm.

What is Unit of Measurement?

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

To compare the length of Sparkle and Twilight, we need to convert their lengths to the same unit of measurement.

Sparkle's length is given in millimeters (mm), while Twilight's length is given in centimeters (cm).

To convert Twilight's length to millimeters, we can multiply by 10

1 centimeter = 10 milli meters

Twilight's length in millimeters

= 46x 10

= 460 mm

Now we can compare the lengths:

Sparkle: 464 mm

Twilight: 460 mm

Therefore, Sparkle is longer than Twilight by 4 mm.

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464 mm is longer because it is 46.4 cm and twilight is 46 cm. Change mm to cm by moving the decimal point of the mm back one point.

Write the ratio 12 to 18 as a fraction in simplest form.

Answers

The simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

To express the ratio 12 to 18 as a fraction in simplest form, we can divide both numbers by their greatest common divisor (GCD). The GCD of 12 and 18 is 6. By dividing both numbers by 6, we simplify the fraction to its simplest form:

12 ÷ 6 = 2

18 ÷ 6 = 3

Thus, the simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

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x to y can be expressed as a fraction this way: x/y.

Let x = 12

Let y = 18

12/18

We can now reduce to lowest terms.

Dividing 12 and 18 by 6, we get 2/3 as the final answer.

Simplify this expression. Assume that y and z are both nonzero. (Question in file/picture)

Type exponential notation with positive exponents.

Answers

Hi, Braydon ! Long time no see. Hope it's all good with you.

First of all, that " -1 " exponent outside the whole thing. That means
invert everything inside. So you're really simplifying:

-21 y⁶ z⁻⁸ / 147 y⁴ z⁴

You can easily write this as the product of 3 separate fractions.
That doesn't change anything, but it makes it a lot easier to handle:

   (-21/147) x (y⁶/y⁴) x (z⁻⁸/z⁴) .

Simplify each one, then just multiply them together again.

First one: (-21/147) Divide top and bottom by 21, and it's (-1/7) .

Second one: (y⁶/y⁴) Divide top and bottom by y⁴, and it's (y²) .

Third one: (z⁻⁸/z⁴) Multiply top and bottom by z⁸, and it's (1/z¹²).

Multiply them:

   (-1/7) x (y²) x (1/z¹²) =

      - y² / 7 z¹² .

That's exactly the same thing as the original expression in the picture,
but it's a lot prettier.

Write an expression that is equivalent to 5(t+3) .