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
galben [10]
3 years ago
10

How does sin 30degrees compare to sin -30degrees?

Mathematics
1 answer:
KiRa [710]3 years ago
7 0

The sine function is an odd function, so the sine of -30° is the opposite of the sine of 30°.

sin(30°) = 1/2

sin(-30°) = -1/2

The sine of 30° is greater than the sine of -30°.

You might be interested in
The sycamore grove contains 30 sycamo
Zinaida [17]

Answer:

40 trees

Step-by-step explanation:

Let the total number of trees be x.

75% of all the sycamore trees in the park are 30 trees.

So,75%of x=30

or,(75/100)*x=30

or,x=(30*100)/75

or,x=40 [ANS]

7 0
3 years ago
Round to the nearest ten for 2,420
kotykmax [81]
I'm pretty sure it's just 2,420.
5 0
3 years ago
Read 2 more answers
I need help please!!!!?
Lena [83]

The answer is:

the 3rd quadrant ! (Quadrant III)

5 0
3 years ago
PLEASE HELP! urgent! Write the equation of a line in a slope-intercept form and standard form
m_a_m_a [10]

Answer:

y = \frac{3}{4}x -3 --- Slope intercept

4y - 3x =- 12 --- Standard form

Step-by-step explanation:

Given

The attached linear graph

Required

The equation

Select any two points on the line

(x_1,y_1) = (0,-3)

(x_2,y_2) = (4,0)

Next, calculate the slope (m)

m = \frac{y_2 - y_1}{x_2 - x_1}

So, we have:

m = \frac{0 --3}{4 - 0}

m = \frac{3}{4}

The slope intercept is then calculated using:

y = m(x - x_1) + y_1

So, we have:

y = \frac{3}{4}(x - 0) -3

y = \frac{3}{4}(x) -3

y = \frac{3}{4}x -3

Multiply through bu 4

4y = 3x - 12

Subtract 3x from both sides

4y - 3x =- 12 --- Standard form

7 0
3 years ago
Describe a sequence of transformations that exhibits the similarity between the pair of figures shown.
kow [346]

Answer:

Reflection across the x-axis followed by dilation by a scale factor of \frac{1}{4} with the center of dilation at the origin

Step-by-step explanation:

Rectangle EFGD has vertices at points E(-6,8), F(0,8), G(0,1) and D(-6,1).

1 transformation - reflection across the x-axis with the rule

(x,y)\rightarrow (x,-y)

So, the image rectangle E''F''G''D'' has vertices with coordinates

  • E(-6,8)\rightarrow E''(-6,-8);
  • F(0,8)\rightarrow F''(0,-8);
  • G(0,1)\rightarrow G''(0,-1);
  • D(-6,1)\rightarrow D''(-6,-1).

2 transformation - dilation by a scale factor of \frac{1}{4} with the center of dilation at the origin. This transformation has the rule

(x,y)\rightarrow (\frac{1}{4}x,\frac{1}{4}y)

Thus,

  • E''(-6,-8)\rightarrow E'(-\frac{3}{2},-2);
  • F''(0,-8)\rightarrow F'(0,-2);
  • G''(0,-1)\rightarrow G'(0,-\frac{1}{4});
  • D''(-6,-1)\rightarrow D'(-\frac{3}{2},-\frac{1}{4}).

These are exactly vertices of rectangle E'F'G'D'.

7 0
3 years ago
Other questions:
  • Anya found the slope of the line that passes through the points (–7, 4) and (2, –3). Her work is shown below. Let (x2, y2) be (–
    7·2 answers
  • How would you determine the distance between (6,8) and (2,-3)
    7·1 answer
  • 5 3rd power- 12 ÷ 3 need to show the steps of answer 121
    9·1 answer
  • Translate the sentence and solve: "4 is 2 less than double a number".
    6·1 answer
  • The number of milligrams of a certain medicine a veterinarian gives to a dog varies directly with the weight of the dog. If the
    7·2 answers
  • Please help me I will give you all my points
    15·2 answers
  • Easy volume problem.
    5·2 answers
  • Find the value of x in each triangle
    14·1 answer
  • AABC is an isosceles triangle, with ZA being the vertex angle.
    7·1 answer
  • Multiply (x + 2)(3x² - 4x + 5).
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!