help pls with the math

Answer:

I'm going to also give you how to get the answer... not just the answer.. you will need to know this for a test :/  so learn it  :P

Step-by-step explanation:

Sin(30)=12

to remember what Sin and Cos at those speacial angles in degrees are.. just use this Sin(degrees)

Sin(0) = 0/2         =0

Sin(30)= [tex]\sqrt{1}[/tex]/2         = 1/2

Sing(45) = [tex]\sqrt{2}[/tex]/2    = [tex]\sqrt{2}[/tex]/2

Sin(60)=[tex]\sqrt{3}[/tex]/2   = [tex]\sqrt{3}[/tex]/2

Sin(90)=[tex]\sqrt{4}[/tex]/2    = 1

Cos is exactly the same but counts backwards from 90°

Cos(90) = 0/2         =0

Cos(60) =  [tex]\sqrt{1}[/tex]/2         = 1/2

Cos(45) = [tex]\sqrt{2}[/tex]/2    = [tex]\sqrt{2}[/tex]/2

Cos(30) = [tex]\sqrt{3}[/tex]/2   = [tex]\sqrt{3}[/tex]/2

Cos(0) =[tex]\sqrt{4}[/tex]/2    = 1

note that the numerators just count from  0,1,2,3,4  , see?  you can remember sin and cos  now  :)   since you can count to 4   :P

Sin(30) =12

1/2 =12  while that statement makes no sense....  obviously 1/2 isn't equal to 12 but.. what's being said is that the angle of 30°  gives you a side that is 12 units long.  

so looking at what I wrote above.. which angle in degrees matches Sin when you look at Cos?  

Sin(30)= 1/2 and Cos(60) also = 1/2  huh

sooo  β = 60 °

got it?  :/

Answer:

23

Step-by-step explanation:

6(4) - 1

24 - 1

23

......

Answer:

25

Step-by-step explanation:

take square root of 24^2+7^2

Step-by-step explanation:

3 pieces because well I know

Answer:

Step-by-step explanation:

open circle on -4 and open circle on 4 and a line connecting them

Step-by-step explanation:

-3+3i-2+3i

-5+6i

Hope that helps you

Answer:

38 / 8 is 4.75

Step-by-step explanation:

Um I tried putting a photo of my work but it wouldn't let me sorry ;-;

Answer

sherry

Step-by-step explanation:

Answer:

what are we supposed to find for this question?

Step-by-step explanation:

Answer:

[tex]Width = 20\ in[/tex]

[tex]Area = 400\ in^2[/tex]

Step-by-step explanation:

Given

See attachment for kite dimension

Required

Determine the width and the area

From the attachment, the height of the kite is:

[tex]Height = 31\ in + 9\ in[/tex]

[tex]Height = 40\ in[/tex]

The width which is half the height is:

[tex]Width = \frac{1}{2} * Height[/tex]

[tex]Width = \frac{1}{2} * 40\ in[/tex]

[tex]Width = 20\ in[/tex]

The area is:

[tex]Area = \frac{Height * Width}{2}[/tex]

[tex]Area = \frac{40\ in * 20\ in}{2}[/tex]

[tex]Area = 40\ in * 10\ in[/tex]

[tex]Area = 400\ in^2[/tex]

Answer:0

Step-by-step explanatio cuz 2x7 is 14 14-14 is 0 and 0+0 is 0 so its 0

Answer:

c. 153 miles

Step-by-step explanation:

in one hour, Tom has gone 30 miles, Juanita 21- so they are 51 miles apart (30+21=51)

multiply 51 times the 3 hours and you get 153 miles.

Answer:

3x + y = 20 and x - 2y = - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

(a)

Given

3x + y = 17 ( subtract 3x from both sides )

y = - 3x + 17 ← in slope- intercept form

with slope m = - 3

Para;;el lines have equal slopes , then

y = - 3x + c ← is the partial equation

To find c substitute (4, 8) into the partial equation

8 = - 12 + c ⇒ c = 8 + 12 = 20

y = - 3x + 20 ← in slope- intercept form

Add 3x to both sides

3x + y = 20 ← in standard form

--------------------------------------------------------

(b)

Given

y + 2x = 13 ( subtract 2x from both sides )

y = - 2x + 13 ← in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-2}[/tex] = [tex]\frac{1}{2}[/tex] , then

y = [tex]\frac{1}{2}[/tex] x + c ← is the partial equation

To find c substitute (2, 3) into the partial equation

3 = 1 + c ⇒ c = 3 - 1 = 2

y = [tex]\frac{1}{2}[/tex] x + 2 ← in slope- intercept form

Multiply through by 2 to clear the fraction

2y = x + 4

x - 2y = - 4 ← in standard form

Answer:

in 2.5 hours the bird will fly 150 miles

Step-by-step explanation:

take 60 mins and divide it into 4(=15) take 15 and multiply it by 10 leaving 150 miles in 2hours and 30 minutes

Answer:

3

Step-by-step explanation:

8 is the answer and 2 is the base so 3 is the exponent.

9514 1404 393

Answer:

  no solution

Step-by-step explanation:

The discriminant is ...

  b^2 -4ac = (-4)^2 -4(2)(16) = 16 -128 = -112

A negative discriminant means there are no real solutions to the equation.

_____

The complex solutions are 1±i√7.

If we assume the equation has a typographical error and is intended to be ...

  2x^2 -4x -16 = 0

The solutions are x = -2 and x = 4.

Answer:

262,144

Step-by-step explanation:

You just need to plug in the values given for x and y.

[tex]2^{3(6)}[/tex]

Once you put that into the calculator, you get 262,144.

If you only need the simplified answer, it is [tex]2^{18}[/tex]

Answer:

262,144

Step-by-step explanation:

First, what we know:

y= 2

x= 6

I multiplied 3x (3⋅6) which gave me 18.

I then raised 2 to 18, which gave me 262,144.

Answer:

-4

hope this answer helps you...

Answer:

8*3=23

180-24=156

Step-by-step explanation:

hope this helps.

Answer:

The third graph is correct for the inequality 2x + 3y > -3

Step-by-step explanation:

The slope of the graph is –2/3.

The y-intercept is –1

The area above the dashed be line is shaded.

To verify, choose a coordinate in the shaded area, substitute the values for x and y. Calculate and check.

For example: (1,1)

2(1) + 3(1) > –3

2 + 3 > –3

5 > –3 True.

The graph that represents [tex]2x + 3y > -3[/tex] is (3)

The inequality is given as:

[tex]2x + 3y > -3[/tex]

Subtract 2x from both sides of the inequality

[tex]3y > -3 -2x[/tex]

Divide through by 3

[tex]y > -1 -\frac 23x[/tex]

Rewrite the inequality as follows:

[tex]y > -\frac 23x-1[/tex]

The above inequality means that:

Hence, the graph that represents [tex]2x + 3y > -3[/tex] is (3)

Read more about inequalities at:

https://brainly.com/question/234674

Answer:

I think the answers would be 12 and 9.

sorry if it's wrong...

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Because 4 minutes times 15 equals an hour 3 x 15 is 45.

And 3 minutes times 20 equals an hour 2 x 20 is 40 so the difference is 5

srry if it makes no sense

Answer:

7.1 yd

Step-by-step explanation:

Answer:

c answer becoz may ifhridyrhfujghrhrjjtufuueb

Answer:

√{12+3}=√16=√4²=±4 is your answer

Answer:D

Step-by-step explanation:

Answer:

Parallelogram. A parralelogram looks like a rectangle, but the end it tilted a bit. a parallelogram is a simple quadrilateral with two pairs of parallel sides.

Step-by-step explanation:

So, connect the arrows with one another.

arrow 1 --- connect with arrow 2

arrow 3 --- connect with arrow 4

then you get a parralelogram!