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ikadub [295]
3 years ago
13

Find sin θ for θ = 45°

Mathematics
1 answer:
OLga [1]3 years ago
3 0

Answer:

\sin( \theta)  \\  \sin(45)  =  \sin( \frac{\pi}{4} )  \\  =  \frac{1}{ \sqrt{2} }

or

= <em>(</em><em>√</em><em>2</em><em>)</em><em>/</em><em>2</em>

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What is the vertex form of y=-1/2x^2 -2x -3?
STALIN [3.7K]

Answer:

y = − 1 2 ⋅ ( x + 2 ) 2 − 1

Step-by-step explanation:

To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2 - 4x + 5 into vertex form, and state the vertex. Equation in y = ax2 + bx + c form.

Very glad I could help you!1

4 0
3 years ago
The diameter of a pearl is about 4 x 10-3cm and the diameter of an atom is about10-11m. How much larger than an atom is a pearl?
Ugo [173]

Answer:

  • D. 4 × 10⁶ times

Step-by-step explanation:

<u>The diameter of a pearl is </u>

  • 4 × 10⁻³cm = 4 × 10⁻⁵ m

<u>The diameter of an atom is</u>

  • 10⁻¹¹m

<u>How much larger than an atom is a pearl?</u>

  • 4 × 10⁻⁵ ÷ 10⁻¹¹ = 4 × 10⁻⁵⁺¹¹ = 4 × 10⁶ times

Correct option is D

5 0
3 years ago
tim needs 2334 m of wood trim to remodel a room. wood trim is sold in lengths of 114 m.what equation can be used to find the num
Pani-rosa [81]
Woodneeded=2334

woodbought=woodneeded
woodbought=number of trims sold times legnth of each
woodbought=x times 114mm

114x=2334
divide both sides by 114
x=20.4

the equation is 114x=2334
3 0
3 years ago
I put a pic of question here. I'm in 8th grade
kykrilka [37]

y = 115

x = 78

The angles in each line have to add up to 180. In this case, it doesn't show the other side of the angle, but you could probably think of it.

6 0
3 years ago
What is the word phrase for 5h + 3k
icang [17]
A word phrase for 5h + 3k would be if you have 5 times a number h and 3 times a number k.
8 0
4 years ago
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