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My name is Ann [436]
3 years ago
8

Find the exact value of sin^-1(-√3/2)

Mathematics
1 answer:
Lana71 [14]3 years ago
4 0

Answer:

  -60°

Step-by-step explanation:

Your calculator and/or your knowledge of trig function values can find this for you.

The arcsine function has a range of -90° to +90°. Positive angles 240° and 300° will also have the sine value -√3/2.

  arcsin(-√3/2) = -60° = -π/3 radians

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Rashawn read 25 pages of his book each day until he finished the book. His book was 400 pages long.
katrin [286]
Given that <span>Rashawn read 25 pages of his book each day until he finished the book. His book was 400 pages long.

The number of days it takes him to finish the book is given by 400 / 25 = 16 days.

In 0 days, he has 400 pages remaining and in 16 days he has 0 pages remaining. 

Therefore, the graph that represents the situation is a</span><span> graph in the first quadrant containing a line segment. The x axis is labeled Days and the y axis is labeled Pages remaining. The endpoints of the line segment are (0, 400) and (16, 0).</span>
3 0
4 years ago
Find the values of a and b such that x² + 2x - 7 = ( x + a )² + b
gizmo_the_mogwai [7]

Answer:

<em>a = 1 ; b = - 8 </em>

Step-by-step explanation:

x² + 2x - 7 = (x² + 2x + 1) - 1 - 7 =<u><em> (x + 1)² - 8 </em></u>

<em>a = 1 </em>

<em>b = - 8</em>

8 0
3 years ago
Read 2 more answers
On the set of axes below, draw the graph of y=x^2-4x-1
never [62]

9514 1404 393

Answer:

  axis of symmetry: x = 2

  see below for a graph

Step-by-step explanation:

You can complete the square to put the equation in vertex form.

  y = (x^2 -4x +4) -1 -4

  y = (x -2)^2 -5 . . . . . . vertex is (2, -5)

The equation of the axis of symmetry is the equation of the vertical line through the vertex:

  x = 2 . . . . . axis of symmetry

__

Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.

5 0
3 years ago
Write the expression using the distributive property to find the product of
adoni [48]

One example could be, 2 • (9x + 6y)

3 0
3 years ago
Help :')<br><br> What integer does the arrow indicate?<br><br><br><br> -9<br> -14<br> -3<br> 6
gayaneshka [121]

it is -9  thats is the answer

4 0
4 years ago
Read 2 more answers
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