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
lilavasa [31]
3 years ago
8

An equivalent expression for sin x is?(please answer with steps)​

Mathematics
1 answer:
Anestetic [448]3 years ago
5 0

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

sin2x = 2sinxcosx

That is the angle on the right side is half the angle on the left, thus

sinΘ = 2sin(\frac{1}{2} Θ )cos(\frac{1}{2}Θ ) → b

You might be interested in
Christopher bought 4 pens that cost the same amount of money and a marker that cost $3. He spent a total of $11. Which statement
Nikolay [14]
The pens cost $2 each.
2*4+3=11
8 0
3 years ago
Calculate the unit rate:<br>write your answer as a decimal <br><br>1/2 mile in ever 1/3 hour​
Alexandra [31]

Answer:

unit \: rate =  \frac{distance}{time}

unit rate is similar to speed / velocity:

unit \: rate =  \frac{ (\frac{1}{2} )}{ (\frac{1}{3})} \\  \\  =  \frac{1}{2}  \div  \frac{1}{3}  \\  \\  =  \frac{1}{2}  \times  \frac{3}{1}  \\  \\  = >  { \boxed{ \boxed{unit \: rate  =   \frac{3}{2}  \: miles \: per \: hour}}}

[<em>unit</em><em> </em><em>rate</em><em> </em><em>must</em><em> </em><em>have</em><em> </em><em>units</em><em> </em><em>including</em><em> </em><em>per</em><em> </em><em><</em><em>time</em><em>></em><em> </em>]

7 0
2 years ago
The area of the square is 100 square centimeters. What is the area of the circle?
swat32

Answer:

  • Since the question is incomplete, see the figure attached and the explanation below.

Explanation:

Since the figure is missing, I enclose the figure of a square inscribed in a circle.

Since the <em>area of a square</em> is the side length squared, you can determine the side length:

  • Area = (side length)²
  • 100 cm² = (side lenght)²

        side\text{ }length=\sqrt{100cm^2}=10cm

From the side length, you can find the diagonal of the square, which is equal to the diameter of the circle, using the Pythagorean theorem:

  • diagonal² = (10cm)² + (10cm)² = 2 × (10cm)²

         diagonal=\sqrt{2\times (10cm)^2}\\ \\ diagonal=10\sqrt{2} cm

The area of the circle is π (radius)².

  • radius = diameter/2 = diagonal/2

        area= \pi \times (5\sqrt{2}cm)^2=50\pi cm^2

6 0
3 years ago
g Refer to these data for the next set of questions: The JMP output is below. Use it to answer the following questions. Write th
mariarad [96]
Hope you find this answer I need points
5 0
3 years ago
Can you guys help me with this? Pls, Okay anyways.. Its a math problem! To make a Fruit salad, Chris bought 3 pounds of strawber
Nezavi [6.7K]

Answer:

$33.81

Step-by-step explanation:

(3 * 2.49) + (2 * 3.19) + (4 * 4.99)

7.47 + 6.38 + 19.96 = 33.81

Please mark brainliest if you like

8 0
3 years ago
Other questions:
  • On a picture the size of rectangular room is 5 cm by 7 cm. Actually the shorter side of the room is 6m. What is the scale of a p
    10·1 answer
  • During the school fundraiser, lsaac sold tubs of cookies dough for $15 each. He made $165. Write an equation that could be used
    12·1 answer
  • What the perimeter of a triangle sides 11in, 5in, and 11in
    7·2 answers
  • Which explains whether or not the function represents a direct variation?
    14·2 answers
  • For triangle TRI the following facts are given:
    11·1 answer
  • If an electrician charges $60 an hour and a base fee Of 150 for every house call. Write an equation foR C, in terms of t, res pr
    9·1 answer
  • 2/3-1/4 I want the answer please
    5·2 answers
  • Please help test tomorrow everything you need is in the photo below
    9·1 answer
  • Find the value of x, rounded to the nearest tenth?
    9·1 answer
  • Please help me! No links!!!<br> what is v?<br><br> v-6=-20
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!