Unit l2 trigonometry homework 6 law of cosines
Does anyone know the answer please help!​

Unit L2 Trigonometry Homework 6 Law Of Cosines Does Anyone Know The Answer Please Help!

Answers

Answer 1

Step-by-step explanation:

The law of cosine states that:

[tex]C^2=B^2+A^2-2AB\cos(\theta)[/tex], where C is the side opposite of angle theta, and A and B are the adjacent sides of the angle.

In this case, A is equal to 21, and B is equal to 30 (or it could also be the other way around). That means that:

[tex]C^2=21^2+30^2-2\cdot21\cdot30\cos(73)\\C=\sqrt{21^2+30^2-2\cdot21\cdot30\cos(73)}=\boxed{31.186722}[/tex] (to nearest 6 digits)

Answer 2

Answer:

102.61

Step-by-step explanation:

assuming that QS is the hypothesis we us the fromula like this:

[tex]30cos(73)[/tex]

which gives us 8.7711511417 or we can round to 8.77

assuming that QS is the adjacent  we use:

[tex]\frac{30}{cos(73)}[/tex]

which gives us 102.609108595 or rounded to 102.61

looking at both answers we can see that 102.61 would be the correct answer.


Related Questions

A spinner is spun 77 times and stops on the color green 17 times. Calculate the experimental probability of the spinner stopping on the color green.

Answers

Answer:

[tex]\boxed {\boxed {\sf \ \frac {17}{77}}}}[/tex]

Step-by-step explanation:

The experimental probability is the probability of an event occurring in an experiment that was conducted. It is the ratio of the times an event occurred to the total trials.  

[tex]P(event)= \frac{ number \ of times \ event \ occurs} {total \ number \ of \ trials}[/tex]

We are trying to find the experimental probability of landing on green.

The spinner was spun 77 times. This is the total number of trials. The spinner landed on green 17 times. This is the event.

[tex]P(green)= \frac{17}{77}[/tex]

This fraction cannot be simplified any further, so the experimental probability of landing on the color green is 17/77

The pay rate of a worker, P(h), as a function of the number of hours worked h is shown in the graph.

What is the practical range for the function p(h)?

(6,12)
[0,40]
[6,12]
{6,8,10,12}

Answers

Answer:

{6,8,10,12}

Step-by-step explanation:

just took the test

Find the volume of the prism

Answers

Answer:

Step-by-step explanation:

The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 9 cm and the width is 7 cm.

V=Bh the length of the rectangle is 9 cm and the width is 7 cm

A rectangular balcony is 14 feet long and 6 feet wide. What is its area?

Answers

84 ft² = 14 ft × 6 ft

Answer:

I will do

Step-by-step explanation:

length of balcony: 14 feet

Breadth of balcony:6 feet

area of rectangular balcony: length ×breadth

answer 14ft × 6ft = 84ft²

BREADTH MEANS WIDE

PLEASE HELP FAST!!!

One number is equal to the square of another. Find the numbers if both are positive and their sum is 90.

Answers

Answer:

x = y^2

:

Find the numbers if both are positive and their sum is 12

x + y = 12

replace x with y^2, you have a quadratic equation

y^2 + y - 12 = 0

Step-by-step explanation:

Factors to

(y+4)(y-3) = 0

The positive solution is all they want here

y = 3

then

x = 3^2

x = 9

;

they add up to 12

Answer:

I’m a bit confused by the question, but hope this helps. Look below!

Step-by-step explanation:

There are multiple different ones, but here’s the ones I think. (This is my work btw.)

45+45= 90

45•45= not 45

10+80=90

10•10= not 80

9+81= 90

9•9=81

9 and 81!


A dentist has male and female patients that range in ages from 10
years old to 50 years old and up as shown in the table. What is the
experimental probability that the next patient will be female and in
the age range 22-39? Enter your answer in simplified fraction
form.

Answers

Answer:

56/125

Step-by-step explanation:

what is the length for the 3rd side? write in simplest radical form if needed

Answers

Answer:

10

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

Let the third side be x , then

x² + 6² = (2[tex]\sqrt{34}[/tex] )²

x² + 36 = 136 ( subtract 36 from both sides )

x² = 100 ( take the square root of both sides )

x = [tex]\sqrt{100}[/tex] = 10

The price of Stock A at 9 A.M. was ​$14.83. Since​ then, the price has been increasing at the rate of ​$0.12 each hour. At noon the price of Stock B was ​$15.33. It begins to decrease at the rate of ​$0.15 each hour. If the two rates​ continue, in how many hours will the prices of the two stocks be the same?

Answers

Answer:

0.5 hours

Step-by-step explanation:

Let the x be the number of hours after noon.

We have the following equation:

14.83 + 0.12(x + 3) = 15.33 - 0.15x 14.83 + 0.12x + 0.36 = 15.33 - 0.15x0.12x + 0.15x = 15.33 - 15.190.27x = 0.14x = 0.14/0.27x ≈ 0.5

need help fast!!!!!!!!!! :)

Answers

Step-by-step explanation:

with what that would help me

PLEASE THIS IS LATE AND IF I DON'T GET IT TURNED IN WITHIN 5 MINUTES I WILL FAIL

Answers

Answer:

yo dude it's D (hope this helps)

Answer:

The answer is D

Step-by-step explanation:

12/13 will shrink the number if multiplied by 5

1 will just be 5(1) which is still 5

12/12 is the same as multiplying 5 by 1 which is also 5

Multiplying 5 by 0 will obviously make it 0

What solution to the system? Write the x-value and the y-value
10x+7y=1
-5x-7y=24

Answers

Answer:

y = - 7 and x = 5

Step-by-step explanation:

10x + 7y - 5x - 7y = 1 + 24

5x = 25

5x ÷ 5 = 25 ÷ 5

x = 5

- 5(5) - 7y = 24

- 25 - 7y = 24

- 25 + 25 - 7y = 24 + 25

- 7y = 49

- 7y ÷ - 7 = 49 ÷ - 7

y = - 7

given p(a) =0.7, P(b) = .86 and P (A and B) = 0.652 find the value of p (A|B)

Answers

Answer:

.758 or 163/215

Step-by-step explanation:

Conditional probablity formula:

(A|B)= (A∩B)/B

we have

.652/.86

this equals .758 or 163/215

which is the correct answer? ( links = report )

Answers

The answer is letter C
Answer: C seems to be the correct answer!

Can someone help me ?? I’ll give Brainliest

Answers

Answer: All I'm seeing is a blank screen I'm sorry can you try it again?

Answer:

nice black screen i like it

Shown below is a jar which is in the shape of a right circular cylinder. What is the length of the longest stick that could fit in this jar (without bending or breaking the stick and with no part sticking out)?

Answers

Answer:

14.14

Step-by-step explanation:

please find attached a diagram showing the stick and the jar

the length of the longest stick can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

10² + 10²

100 + 100 = 200

determine the square root of 200

= 14.14

In a group of 24 people, 10 study
Physics, 15 study Chemistry and
18 study at least one subject.
Find the number of people who
do not study any of the subject.

Answers

click the photo there is the answer

A campground covers their
rectangular-shaped pool each
winter. If the area of the cover is
333.5 square feet, and the pool is
23 feet long, find the width.

Answers

Answer:

width = 14.5 feet

Step-by-step explanation:

Area = length * width

333.5 = 23 * x  divide both sides by 23

14.5 = x

When multiplying fractions, you multiply straight across? Yes or No ?

Answers

Answer:

YES!

Step-by-step explanation:

You do multiply straight across for ex: 3/4 x 4/3= 12/12=1

For addition you don't but for multiplication you do!

Please I need help!!!!

Answers

Answer:

1st

Vertex

we have

f(x)=x²-18x+88

let

y=x²-18x+88

comparing above equation with ax²+bx+c

we get

a=1

b=-18

c=88

now

vertex(x,y)=(-b/2a,f(-b/2a))

x=(18/2×1)=9

y=f(9)=9²-18×9+88=7

SO

VERTEX(X,Y)=(9,7)

=

#1

y=x²-18x+88

x coordinate of vertex

-b/2a18/29

y coordinate

y=9²-18(9)+88y=81+88-162y=7

Option C.

#2

y=x²-9x-36

y intercept

y=0-36=-36

(0,-36)

x inetercepts

x²-9x-36=0x²-12x+3x-36=0(x-12)(x+3)=0x=12,-3

(12,0)U(-3,0)

#3

y=-x²+3x+12

Find dy/dx

-2x+3

f'(x)=0<=>x=3/2

For increasing

-2x+3>0x<3/2

For decreasing

x>3/2

F(x) is increasing on (-oo,3/2)

F(x) is decreasing on (3/2,oo)

D

Helppp me for Brainlyiest pls provide proofff or nun

Answers

Answer:

2a + b/4

Step-by-step explanation:

The expression is the sum of two terms (2a + b/4)

The first term is the product (Multiply) of 2 and a (2a)

The second term is the quotient (Divide) of b and 4 (b/4)

The second one— 2a + b/4


A number and a variable always means multiply ( the word AND ) , a quotient is the product of division.

Find the distance between the points (-4,9) and (5, -3).
Write your answer as a whole number or a fully simplified radical expression. Do not round.
units
Submit

Answers

Answer:

15 units

Step-by-step explanation:

The formula of a distance between two points:

[tex]A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}}[/tex]

We have:

[tex]A(-4;\ 9);\ B(5;\ -3)\\\\|AB|=\sqrt{(5-(-4))^2+(-3-9)^2}=\sqrt{9^2+(-12)^2}=\sqrt{81+144}\\\\=\sqrt{225}=15[/tex]

On a coordinate plane, point A is located at (7, 4), and point B is located at (-8, 4). What is the distance between the two points? *
-1
3
15
56

Answers

Answer:

Solution given;

A(x1,y1)=(7,4)

B(x2,y2)=(-8,4)

distance AB=?

we have

d=[tex]\sqrt{(x2-x1) ²+(y2-y1) ²}[/tex]

AB=[tex] \sqrt{(-8-7)²+(4-4)²}[/tex]

AB=15 units

the distance between the two points is 15 units.

The top and bottom shelves of a triangular shelving unit are similar triangles. The shortest and longest sides of the larger shelf are 16.5 inches and 22.5 inches long. (24 POINTS PLS HELP) The longest side of the smaller shelf is 15.75 inches long. How long is the shortest side of the smaller shelf?

A. 11.45 inches
B. 11.55 inches
C. 24.48 inches
D. 23.57 inches

Answers

Answer:

Its B

Step-by-step explanation:

It’s B I think 11.55 inches .

PLZ NEED HELP ASAP SHOW WORK TO PLZ IT WOULD MEAN A LOT

Answers

First Chart: Perimeter

Square Portion:

Original Side Lengths: P = 4  (1 + 1 + 1 + 1 ) =4

Double Side Lengths: P = 8 (2 x 4 = 8)

Triple Side Lengths: P = 12  (4 x 3 = 12)

Quadruple Side Lengths: P = 16 (4 x 4 = 16)

Rectangle Portion:

Original Side Lengths: P = 6 (1 x 2 + 2 x 2 = 6)

Double Side Lengths: P = 12 (2 x 2 + 4 x 2 = 12)

Triple Side Lengths: P = 24  (4 x 2 + 8 x 2 = 24)

Quadruple Side Lengths: P = 48 (8 x 2 + 16 x 2 = 48)

Second Chart: Area

Square Portion:

Original Side Lengths: A = 1 (1 x 1 = 1)

Double Side Lengths: A = 4 (2 x 2 = 4)

Triple Side Lengths: A = 9 (3 x 3 = 9

Quadruple Side Lengths: A = 16 ( 4 x 4 = 16)

Rectangle Portion:

Original Side Lengths: A = 2 ( 1 x 2 = 2 )

Double Side Lengths: A = 8 ( 2 x 4 = 8)

Triple Side Lengths: A = 18 ( 3 x 6 = 18)

Quadruple Side Lengths: A = 32 (4 x 8 = 32)

find the distance between the points (-2,2) and (0,4)

Answers

Answer:

(2,2)

Step-by-step explanation:

Difference between -2 and 0 is 2 and difference between 4 and 2 is 2

Answer:

difference in y is 6 difference in x is 2

Step-by-step explanation:

Line t is mapped onto line m by a dilation centered at the origin with a scale factor of 2. The equation of line t is 3x-y=4. Determine and state an equation for line m.

Answers

9514 1404 393

Answer:

  line m: 3x -y = 8

Step-by-step explanation:

The dilation scale factor affects only the constant in a linear equation. The scaled lines are parallel to each other, so the slope, or ratio of coefficients, does not change.

3x -y = 4 scaled by a factor of 2 becomes 3x -y = 8.

Solve for x and y. X= Y=

Answers

Answer:

x = 82°

y = 8°

Step-by-step explanation:

[tex]x + 98 = 180 \\ x = 180 - 98 \\ x = 82[/tex]

[tex]y + x = 90 \\ y + 82 = 90 \\ y = 90 - 82 \\ y = 8[/tex]

Shabina is making a cubiod-shaped swimming pool. Her pool will be 20m long and 5m wide. Its volume will be 200m squared. What is the depth of her pool?

Answers

Answer:

2m

Step-by-step explanation:

HxWxL

20m x 5m = 100m

200m/100m = 2m

What percentage (nearest whole percent) is budgeted for entertainment if $200 is allotted from a total budget of $1260 ?

Answers

200/1260= .15873
Answer:16%

there is 1/3 of a pan of cornbread left. Four children are going to share it equally. What fraction of the whole pan of cornbread with each child get?

Answers

1/12..................................
Other Questions
If the bases of an isosceles trapezoid have lengths of 22 and 29, what is thelength of the median?A. 25,5 unitsB. 7 unitsC. 51 unitsD. 3,5 unitsSUBMIT Plz help me Im really confused! What is your favorite thing about this distance learning school year? At least 2 reasons please :) Can someone plz help me, I need answers asap What are the central ideas of this soliloquy? Select three options. Antony wants Caesar to forgive him for being nice to his conspirators. Antony is pleased by Caesar's death because he too saw Caesar growing strong with greed. Antony predicts that soon the land will be bloodied by men fighting men. Antony expects Caesar's ghost will eventually praise the conspirators for their bravery. Antony compares Caesar's wounds to mouths wishing to speak. Which sentence best describes low comedy?It relies on physical antics and silly jokes.It often includes allusions to historical events.It places stereotypes at the center of jokesIt makes you think about important issues. Which wave has the lowest amplitude? Please help and add explanation Mis amigos y yo ______________ a la cafetera despus Someone please help me Ill give out brainliest please dont answer if you dont know What territories did Israel claim after the six day war ? NEED HELP The main difference between kinetic energy and potential energy is thatSingle choice.(2 Points)kinetic energy involves position, and potential energy involves motion.kinetic energy involves motion, and potential energy involves position.although both energies involve motion, only kinetic energy involves position.although both energies involve position, only potential energy involves motion. How did Pi's father help the rhino at the zoo who was suffering from isolation? Plz stop deleting my questions! This is a urgent!!plz help meee!, What is the value of 3.45 + 2.6 + 32.007? Two angles are supplementary. One angle is 45 degrees and the other angle measures (4x-5)degrees. What is the value of x?A. 35B. 130C. 32.5D. 12.5 37. Under Stalin, the communists in the U.S.S.R. adhered to all of the following practices EXCEPTA. plans to industrialize the Soviet Union in five yearsB. the rise of nationalism and NazismC. removal of anyone who did not agree with the dictatorD. plans to bring all privately-owned farms under government control into one large farm Im not sure but do anybody know this Solve for x, rounding to the nearest hundredth.98: 10588HELP YA SISTER OUT PLS!!!! (17) The walls of Valhalla were hung with shields; its ceiling.glittered due to polished spearheads.Read the passage. Look at the underlined sections marked number (17). There may be a mistake in the way the sentence is wyou find a mistake, choose the answer that corrects the mistake. If there is no mistake, choose "Correct as is.