PLEASE HELP ASAP! Answer + explanations :(

Answer:

B. θ(t)= 6 cos (2π/3 t)

Step-by-step explanation:

Answer:

B) theta(t)= 6cos (2pi/3 t)

I’m not sure how to explain how I got the answer, but I did get it wrong and B was marked right. I hope this helps!

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:

1005.3 ft³

Step-by-step explanation:

cylinder has a base diameter of 8ft and a height of 20ft. What is it's volume in cubic ft, to the nearest 10th place?

Given that:

Base diameter = 8feets

Radius, r = 8/2 = 4 feets

Height h, = 20 feets

Volume of cylinder, V = πr²h

V = π * 4² * 20

V = π * 16 * 20

V = 1005.3096

V = 1005.3096 ft³

Answer:

Step-by-step explanation:

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

Answer:

A) 2nd quadrant

B) 2th quadrant

Step-by-step explanation:

hope this helps have a nice day!!

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:

Answer is 50cc Number D

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

3.4.2

Step-by-step explanation:

3 pieces because well I know

Answer:

(In order 1-17)

C,A,D,A,A,D,C,I,C,D,C,I,A,I,I,C,A

Step-by-step explanation:

A=Associative

D=Distributive

I= Identity

C=Commutative

Answer:

the first option

Step-by-step explanation:

Answer: x < 4

Step-by-step explanation: To plot an inequality, find the number and go the way the sign is pointing.

In this problem...

The less than sign is pointing left, and the number is 4. We use an open circle because the sign is not equal to. If it was, we would of put a closed circle.

<, or > = Open circle (Not shaded)

≤, or ≥ = Closed circle (Shaded)

I attached a image to proof the answer is correct.

Let me know if you have any questions.

~ Lily, from Brainly.

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:

0

Step-by-step explanation:

According to  PEMDAS: parenthesis, exponents, multiplication, division, addition, subtraction

Do we have parenthesis? NO

Do we have exponents? YES 10^3=10x10x10=1,000

Are new expression is 8x1,000x

Do we have multiplication? Yes 8x1,000=8,000

Are new expression is 8,000x

Answer:

280 miles

Step-by-step explanation:

It is given that :

Scale : 1.25 inches = 50 miles

In the map the distance between Piedmont and Tulsa is = 3.5 inches

So the actual distance between Piedmont and Tulsa in miles is given by :

  1.25 inches = 50 miles

So, 3.5 inches = [tex]$\frac{50 \times 3.5}{1.25}$[/tex] miles

                       = 140 miles.

So when we go from Piedmont to Tulsa, it is 140 miles and we go back from Tulsa to Piedmont, it is another 140 miles.

Therefore, total distance = 140 + 140

                                         = 280 miles

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:

7.1 yd

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

can i have brainliest

Answer:

nice

Step-by-step explanation:

Answer:

length would be 15 inches, width would be 9.36 inches and the scale would these numbers divided by the number of feet on the original scale... not sure if its correct

Answer:

if it increases 8% each year, the next year it's not 8% of the original, but 8% of the 108% and so forth.

The increase after 10 years is (108%)^10 - 100% which is bigger than 80%.

If the value of a stock increases by 8% each year, then, that is not equal to the value of a stock increases 80% each decade.

The degree to which a value increases expressed in percent form is known as percentage increase.

Given that, The value of a stock increases by 8% each year.

a) If it increases 8% each year, the next year it's not 8% of the original, but 8% of the 108% and so forth, the incasement in percentage is an exponential increase not a linear increase, so we can't say that, the value of the stock increases 80% each decade

b) Since,  (108%)¹⁰ > 80%

Hence, the increase after 10 years is (108%)¹⁰, will be bigger than 80%.

Hence, If the value of a stock increases by 8% each year then, that is not equal to the value of a stock increases 80% each decade

For more references on percentage increase, click;

https://brainly.com/question/27992848

#SPJ2

Answer:

i hope this helps the answer is in the photo

Step-by-step explanation:

Answer:

269277

Step-by-step explanation:

Suppose a city with population 100,000 has been growing at at rate of 6% per year. If this rate continues, find the pouplation in 17 years

We solve using the formula for exponential growth

Pt = P( 1 + r)^t

When

P = Initial population = 100000

Pt = Population after time t = x

r = Growth rate = 6%

t = Time in years = 17

Hence:

Pt = 100000( 1 + 0.06)¹⁷

Pt = 100000( 1.06)¹⁷

Pt = 269277.27858

Approximately the population in 17 years = 269,277

Answer:

They are the same

Step-by-step explanation:

Answer:

A ∝ BCD or A = kBCD (k = constant ), then A varies jointly as B, C and D.

Step-by-step explanation:

The value of 'w' when x = 4 and y = 3 is, 40.

In its most basic form, a ratio is a comparison between two comparable quantities.

There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.

If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.

Given, The value of w varies jointly with x and y.

Let, w ∝ xy ⇒ w = kxy.

5 = k×(3/4)×2.

5 = (3/2)k.

k = 10/3.

Now, x = 4 and y = 3.

Therefore,

w = (10/3)×4×3.

w = 40.

learn more about proportion here :

https://brainly.com/question/7096655

#SPJ3

Answer:

1. 70.84

2. 144.75

3. 147.89

4.295.89

Answer:D

Step-by-step explanation:

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:

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?  :/