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4 years ago

Find the exact value. sin135°

Mathematics

1 answer:

Soloha48 [4]4 years ago

7 0

Answer:

$\frac{1}{\sqrt{2} }$

Step-by-step explanation:

Note that

sin135° = sin(180 - 135)° = sin45° = $\frac{1}{\sqrt{2} }$ = $\frac{\sqrt{2} }{2}$

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Select ALL expressions that are equivalent to 38

Airida [17]

Answer:

3^2*3^4

3^12/3^4

(3^4)^2

The first, fourth, and fifth

Step-by-step explanation:

Follow rules of exponents

When multiply an exponent with same base just add the exponents

EX: 2^2 * 2^2= 2^4

When dividing with the same base, subtract

EX: 3^12/3^2=3^10

When raising the power of an exponent to another exponent, multiply.

EX: (3^2)^2=3^2

3 0

3 years ago

Caleb and two friends are sharing 1/2 quarts of milk equally. What fraction of a quart of milk does each of the 3 friends get

Oksi-84 [34.3K]

Answer:

1/6 of a quart

Step-by-step explanation:

3 0

3 years ago

The hull speed of a boat in knots per hour is determined by the length of the waterline. The waterline is the length of the boat

777dan777 [17]

Answer:

The length of the waterline when hull speed is 4 knots per hour in feet is 2.985 feet.

Step-by-step explanation:

Let the function $h = 1.34\cdot l$ , where $l$ is the length of the waterline, measured in feet and $h$ is the hull speed of the boat, measured in knots per hour. If we know that $h = 4\,\frac{kt}{h}$ , then the length of the waterline is:

$l = \frac{h}{1.34}$

$l = \frac{4}{1.34}$

$l = 2.985\, ft$

The length of the waterline when hull speed is 4 knots per hour in feet is 2.985 feet.

3 0

3 years ago

Explain how you would multiply 5 x 2 1/2?

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

5 × <em>2</em> × 1/<em>2</em>

Reduce the numbers using the greatest common factor 2

Solution: 5

5 0

3 years ago

Find the midpoint of a segment with the given endpoints.<br> W(-2,5), X(3,-17) =

Tema [17]

Answer:

The answer is

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

W(-2,5) and X(3,-17)

The midpoint is

We have the final answer as

Hope this helps you

6 0

3 years ago