Mathematics High School

Angle 0 is in standard position. if sin(0) = -1/3, < 0 < 3/2 , find cos (0).

Angle 0 Is In Standard Position. If Sin(0) = -1/3, &lt; 0 &lt; 3/2 , Find Cos (0).

Answers

Answer 1

Answer:

-2 sqrt (2) /3

Step-by-step explanation:

sin = -1/3 its in the 3rd quadrant so sin is negative cos is negative

sin^2 O + cos ^2 O = 1

1 - (1/9) = cos^2 O

[tex] \cos( \alpha ) = \frac{ - 2 \sqrt{2} }{3} [/tex]

Related Questions

Can someone help me with this?

Answers

The answer is C hope this helps

Calvin's mp3 player has a 2GB
memory card and can hold 500
songs. How many songs will he be
able to have on his mp3 player if he
upgrades to 4GB of memory?
4
[?]
são
2
=
500

Answers

Answer:

1000

Step-by-step explanation:

You just have to multiply by two

8
There is a 46% chance that a senior has "early out". What is the probability that a senior
DOESN'T have "early out"? *
(7 points)

Answers

54% because there is a total of 100 and you have already taken 46 of that. And we have not been given a third factor

5(x-4)=4(x-5) solve the equation

Answers

Answer:

5x-20 =4x-20

5x-4x = -20+20

x= 0

Describe the transformation
(x,y) to (y-2, x+2)

Answers

Move to the right 2 points and move down two points

The perimeter of a rectangular tray is 28 inches. The length of the tray is 2 inches longer the width of the tray. Determine the dimensions of the rectangular tray.

Answers

Answer:

width = 6 and length = 8

Step-by-step explanation:

perimeter = 2*(length + width). (1)

and we have that length = 2 + width

in (1)

28 = 2 *(width + 2 + width)

14= 2*width +2

width =6

and so length will be 8

-3x +y =12 -y + 9x =0 Método de Sustitución
:v SDLG

Answers

Answer:

it is 3

Step-by-step explanation:

3×3487+7+7+8+8+8++7+7

Help I need to know if each statement is always, sometimes, or never true

Answers

Never
Always
Sometimes - for example sr(12) / sr(3) = sr(12 / 3) = sr(4) = 2
Always

Write the slope-intercept form of the
equation that passes through: (4,2),
parallel to y = x-3

I tried to answer myself but somehow got it wrong, would like to know what I did wrong

Answers

Answer:
y=x+2

Explanation:

Easy 8th pre-algebra worth ten points each=30 points
1. -238(17)=
2. 920/-23=
3. 16(-40)(-8)=

Answers

1. -3,910
2. -40
3. 5,120

What is the square root of 9000?

Answers

Approximately 94.8683

How do I work this out (don’t tell me the answer) quickest reply gets brainiest

Answers

Answer:

2/7 divided by 3/4

So we can't divide fractions but what we can do is multiply them.

The First step is to do KCF (Keep, Change, Flip)

So It will be 2/7 TIMES 4/3. Keep 2/7 change the division sign to multiplication sign and flip 3/4 to 4/3. Now Multiply normally.

I hope this helps you find the correct answer <3

Subtract 15 –k from -6k– 7.

Answers

Answer:

[tex] - 6k - 7 - (15 - k) \\ = - 6k - 7 - 15 + k \\ = - 5k - 22 \\ thank \: you[/tex]

I need help with this

Answers

Evaluate the Function the answer is 34

Answer:

34

Step-by-step explanation:

1. plug in 4

sqrt(4) +2(x)^2

=2 +2(16)

=2+32

=34

0.058
−
0.225
+
6.4
0.08

Answers

Answer:

0.345

Step-by-step explanation:

impretty sure thats right. but if im wrong im really sorry <333

Can someone help ASAP I think Ik the answer but don’t wanna get wrong

Answers

Answer:

(4x+1)= 81

Step-by-step explanation:

4x+1= 81

4x= 81 - 1

4x= 80

x= 80/4

x= 20

Answer:

4x+1=81(vertically opposite angles)

x=20 degrees

Step by step explanation:

4x+1=81

4x   =81-1

  4x=80

     x=20

It took Sharon 4 hours to drive to her grandmother's house. Her grandmother lives 140 miles from Sharon.

What was Sharon's average speed for this trip?




A. 30 mph

B. 35 mph

C. 136 mph

D. 560 mph

Answers

Answer:

B

Average speed = total diatance covered

total time taken

= 140 miles

4 hours

= 35mph

please help find the sum of all even integers from 2 to 100

Answers

Answer:

2550

Step-by-step explanation:

2 + 4 + 6 + ……… + 98 + 100

= (2×1) +(2×2) + (2×3) + ……… + (2×50)

= 2 × (1 + 2 + 3 + ………. + 50)

The sum (S) of n natural numbers is given by -

S = (n × (n + 1) )/2

Therefore,

2 × (1 + 2 + 3 + ……… + 50)

= 2 × ((50 × 51)/2)

= 2 × (2550/2)

= 2 × 1275

= 2550

Hope this helps!

Can someone explain the steps please

Answers

Answer:

x=70⁰

Step-by-step explanation:

a line equals 180⁰ so you subtract 110⁰ from 180⁰ and it gives you 70⁰

Answer:

70

Step-by-step explanation:

The angle on a straight line is 180 so minus 110 from 180

the ratio of carp to bass in a lake is 7 to 2 there are 2,700 of these types of fish combined how much bass are in the lake please helpppppppppp

Answers

Answer:

divide

Step-by-step explanation:

divide the questions and then that should give you the answer if it doesn't

then subtract.

PLZZZ HELP……Explain why the lines are parallel given the angles shown. Assume that all tile patterns use this basic shape.

Answers

Answer:

it is parallel because it is a straight line I think

1/9 as a rational number

Answers

Answer is 0.111

So it is rational

write a function to repaint this. reflection across the y axis, then a translation a units to the right and b units up

Answers

Answer:

For the first one, I believe you would need to use a rotation matrix; to rotate 90º counterclockwise, the matrices would look like ; you would then multiply those out. A reflection across the x-axis would be changing the sign of f(x) (from negative to positive or positive to negative), a reflection across the y-axis would be changing the sign of x, translation a units to the right would be subtracting a from x, translation b units up would be adding b to x. Rotation of 180º about the origin would be the same format as the first matrix, except it would be cos180 and cos0 on the top and sin180 sin0 on the bottom. Reflection across the y-axis would be changing the sign of x again.

OR

1. We know that, 'Translation shifts the figure in any direction'.

As, the function f(x) is translated 'a' units to the right, the new form of function is f(x-a).

Again, the function is translated 'b' units up, the final form of the function is f(x-a)+b.

2 and 3. We know that, ' Reflection flips the image over a line'.

As the function g(x) is reflected over y-axis, the new form of the function is g(-x).

As the function h(x) is reflected over x-axis, the new form of the function is -h(x).

4 , 5 and 6. We know that, 'Rotation turns the image around a point to a certain degree'.

Let us assume the function to be a point (x,y).

As the function is rotated by 90° counterclockwise about the origin, the new function becomes ( y,-x ) i.e. R_{90}R

90

(x,y) = ( -y,x ).

As the function is rotated by 180° counterclockwise about the origin, the new function becomes ( y,-x ) i.e. R_{180}R

180

(x,y) = ( -x,-y ).

As the function is rotated by 2700° counterclockwise about the origin, the new function becomes ( y,-x ) i.e. R_{270}R

270

(x,

Step-by-step explanation:hopes this helps lol?

Trevor drove 44 miles in 1/2 hour. How far did he drive in 1 1/2 hour?

Answers

Answer:

132 miles

Step-by-step explanation:

1 1/2 + 1/2 = 3/2 x 2/1

6/2 = 3 hours

44 x 3 = 132 miles

Answer: 132 miles

Given m||n, find the value of x.
t
m
(2X-24)
(x+5)

Answers

hope this helps

May i have brainliest

-m/3=-4
m?
Yeah i need to figure out how to do this one

Answers

Answer:

assuming that this is just an algebra problem and not some graphing

problem that you are trying to fin the slope vale m in y-mx+b

-m/3 = -4

-m = -4*3

-m = -12

m=12

Step-by-step explanation:

Given that AOC is straight line,find the value of the unknown in each of the following figuresò​

Answers

Answer:

x=52°

Step-by-step explanation:

38° +90°+x = 180° ( Angles on a straight line)

x+ 128° =180°

x= 180° -128°

x= 52°

help me it’s number 3

Answers

Answer:

x multiplied by 6 is 6x.

Hope it helps

X multiplied by 6 can be expressed as 6x

\angle1=9x+5 what is angle 1?

Answers

Answer:

x = -5/9

Step-by-step explanation:

9x + 5 = 0

x = -5/9

if this is incorrect then ur question is missing something

Which of the following planes is parallel to ABCD

Answers

Answer:

P

1

:4x−2y+6z=3

P

2

=4x−2y−2z=6

P

3

=−6x+3y−9z=5

P

4

=2x−y−z=3

Step-by-step explanation:

The coefficients of each x,y,z give the direction vector of the normal vector of the plane.

Parallel but not identical condition will be that:

x

2

x

1

=

y

2

y

1

=

z

2

z

1

=

c

2

c

1

where each term is the coefficent of x,y,z respectively.

By observation we see P

2

and P

3

are parallel but not identical.

I hope it will help you

please make me brainlest

THANK U

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