Consider a triangle ABC like the one below. Suppose that a = 31, b = 23, and c = 20. (The figure is not drawn to scale.) Solve the triangle. Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth. If there is more than one solution, use the button labeled "or".​

Answers

Answer 1

The solution to the triangle is A = 92.0, B = 47.9 and C = 40.1

How to solve the triangle?

The figure is not given;

However, the question can still be solved without it

The given parameters are:

a = 31, b = 23, and c = 20

Calculate angle A using the following law of cosine

a² = b² + c² - 2bc * cos(A)

So, we have:

31² = 23² + 20² - 2 * 23 * 20 * cos(A)

Evaluate

961 = 929 - 920 * cos(A)

Subtract 929 from both sides

32 =- 920 * cos(A)

Divide both sides by -920

cos(A) = -0.0348

Take the arc cos of both sides

A = 92.0

Calculate angle B using the following law of sine

a/sin(A) = b/sin(B)

So, we have:

31/sin(92) = 23/sin(B)

This gives

31.0189 = 23/sin(B)

Rewrite as:

sin(B) =23/31.0189

Evaluate

sin(B) =0.7415

Take arc sin of both sides

B = 47.9

Calculate angle C using:

C = 180 - 92.0 - 47.9

Evaluate

C = 40.1

Hence, the solution to the triangle is A = 92.0, B = 47.9 and C = 40.1

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Related Questions

|2x+1|=-13

A. No Solution
B. X = -7
C. X = -14, 12
D. X = -7, 6

Answers

Answer:

No solution.

Step-by-step explanation:

[tex]|2x+1| = -13\\\\\text{No solution for}~ x\in \mathbb{R}~ \text{because absolute value cannot be negative.}[/tex]

Can somebody help me out? Also please provide an explanation.

Answers

Answer:

38%

Step-by-step explanation:

Total: 93

Find percentage

Rain: 24

Snow: 11

24 + 11 = 35

Find what percentage of 90 35 is.

35 of 90 can be written as:

35

----

90

To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100

35           100

----   ×         ----

90            100

= ( 35 * 100/90) * 1/100 = 38.89/100

Therefore, the answer is 38.89%

The answer is 38.89 hope this helps

Elaina Kicks A Soccer Ball With An Initial Velocity Of 28 feet per second at an angle of 58 to the horizon

Answers

Answer:

Hi,

Answer B

Step-by-step explanation:

after 1.484 s the ball hit the ground à 22.019 feet

yes the ball will be at a height of 2.93506334 feet when time is 1.348 s and height is 20 feet

no the max height happens at 11.0 has no thing to do with hitting the grat 2.937 s the ball is at -68.2754 feet

ound

7th grade math
(Look at photo!)
Easy math

Answers

Answer:

he will buy 4 tickets

Step-by-step explanation:

firts u have to mutilpy 7.50 by a number and start at 1 and go up till u get 30

hope this helps:)!!

Harry will buy 4 tickets bc the other answer said so

Write the equation of the line that passes through the points (4, -3) and (-5, 4).
Put your answer in fully simplified point-slope form, unless it is a vertical or
horizontal line.

Answers

Answer:

y₁ - y₂ = (-7/9)(x₁ - x₂)

Step-by-step explanation:

The general structure for an equation in point-slope form is:

y₁ - y₂ = m(x₁ - x₂)

In this form, "m" represents the slope and the "x" and "y" values come from each point. To find "m", plug the values of each point into the equation.

Point 1: (4, -3)                   Point 2: (-5,4)

y₁ - y₂ = m(x₁ - x₂)                                  <---- Original equation

-3 - 4 = m(4 - (-5))                                 <---- Plug values in for "x" and "y"

-7 = m(4 - (-5))                                      <---- Simplify left side

-7 = m(9)                                               <---- Simplify within parentheses

-7/9 = m                                              <---- Divide both sides by 9

I don't exactly understand what "fully simplified point-slope form" means because if all of the variables are plugged in, you wouldn't be left with an equation. It may just be asking for the slope, which in this case would make the equation look like this:

y₁ - y₂ = (-7/9)(x₁ - x₂)  

It may want you to find the equation in slope-intercept form (y = mx + b), and you would have to find "b". Sorry I don't quite understand what exactly you are looking for.

Please help me for a treat lol

Answers

Step-by-step explanation:

a) Jill ended her scooter at her house

b) 2/3 or 0.67

c) The domain is [0,19] , The domain tell about the Elapsed Time of the Jill's scooter ride

d) The range is [2,6] , The range tell about the Distance travelled from Jill's House

I hope it helps you

Treat Please :)

Given that 24w = 14ten .Find the unknown base​

Answers

Answer:

w = 5

Step-by-step explanation:

24w = (14)10

2w + 4 = 10 + 4

2w = 10

w = 5

The pie chart below illustrates the future plans of 200members of St.Thomas graduating class.

a)How many graduates are planning to continue studying?

b)What is the measurement of the angle representing those who plan to work?​

Answers

Answer:

a) approximately 133 graduatesb) approximately 120°

Step-by-step explanation:

a) the number of graduates planning to continue studying :

= (37 1/2% + 12 1/2% + 16 2/3%) × 200

[tex]=\frac{\left( 37\frac{1}{2} +12\frac{1}{2} +16\frac{2}{3} \right) }{100} \times200[/tex]

= (37.5 + 12.5 + 16.666666666667)×2

= 133.333333333334

…………………………………

b) the measurement of the angle representing those who plan to work :

= (360× 33 1/2)÷100

= (360× 33.333333333333)÷100

=119.999999999999

Cameron purchased an electric guitar for 1,875. The value of the guitar depreciates by 20% each year. In how many years Will the guitar be valued at $768?

Answers

Answer:

4 years

Step-by-step explanation:

Each year the guitar is worth 80% of its previous worth

1875 ( .80)^n   = 768     where n = years

n=4

can Someone helps me


Answers

Answer:

10.63

Step-by-step explanation:

To find the Hypotenuse we need to use Pythagorean Thereom. So plugging in the formula the square root of A squared plus B squared you get 10.63

Answer:

Step-by-step explanation:

To solve the triangle means to find ALL unknown elements of Δ ( sides and angles )

JH² = 8² + 7² = 113

JH = √113 ≈ 10.63 m

m∠H = β

[tex]\frac{8}{7}[/tex] = tan β ; β = arctan [tex]\frac{8}{7}[/tex] = [tex]tan^{-1}[/tex] [tex]\frac{8}{7}[/tex] ≈ 48.814°

m∠H49 °

m∠J = 90° - 49° = 41 °

Seven more than a number is 15.
The equation is (Type an equation using x as the variable.)

Answers

Answer:

x + 7 = 15

Step-by-step explanation:

I hope the answer above was correct :)

Answer:

x + 7 = 15

Step-by-step explanation:

7 more is adding 7 to "a number" which is x. The sum is 15 so it shouldnt be that hard to put it all together

Two exterior angles of a triangle measure 135° and 100°. What are the measures of the interior angles of the triangle?
A.
45°, 65°, 80°
B.
45°, 65°, 70°
C.
45°, 55°, 80°
D.
55°, 75°, 50°
E.
80°, 50°, 50°

Answers

Answer:

its it a

Step-by-step explanation:

At a certain college, 49% of the students are female, and 21% of the students major in civil engineering. Furthermore, 8% of the students both are female and major in civil engineering.

Answers

The probability that a student is a female or major in civil engineering is 62%

Complete question

At a certain college, 49% of the students are female, and 21% of the students major in civil engineering. Furthermore, 8% of the students both are female and major in civil engineering. What is the probability that a randomly selected female student majors in civil engineering?

How to determine the probability?

Let A represent Female and B represents civil engineering.

The above representation means that the given parameters are:

P(A) = 49%P(B) = 21%P(A and B) = 8%

The required probability is calculated as:

P(A or B) = P(A) + P(B) - P(A and B)

This gives

P(A or B) = 49% + 21% - 8%

Evaluate

P(A or B) = 62%

Hence, the probability that a student is a female or major in civil engineering is 62%

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Please help me it’s for Plato on edmentum! Algebra 1 Quadratic relationships Mastery test

Answers

The equation of the function g(x) will be g(x) = (1/2) x². Then the correct option is B.

The complete question is attached below.

What is a function?

Functions are found all across mathematics and are required for the creation of complex relationships.

The function f(x) is given below.

f(x) = x²

Then the function g(x) will be

g(x) = a · x²

Then the value of will be

From the graph, at x = 2, g(x) will be 2.

Then we have

2 = a · 2²

a = 1/2

Then the equation of the function g(x) will be g(x) = (1/2) x².

Then the correct option is B.

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A problem says an object's displacement is
88.8 m in a 123º direction. Which one of these
tables includes that information correctly?

Answers

The table that includes that information correctly when the problem says an object's displacement is 88.8 m is table B.

What is displacement?

It should be noted that a displacement simply means the vector quantity that illustrates how far a particular place is.

In this case, the table that includes that information correctly when the problem says an object's displacement is 88.8 m is table B.

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Answer:A  dude if you already know it say it to make it easier for people don't be lazy

Step-by-step explanation:

Which of the following is an example of an exponential function?

A.)f(x) = 4x3 + 2x2 – 3x + 9
B.) g(x) = log2(x)3
C.) h of x equals the quantity x squared plus 2x minus 7 end quantity divided by the quantity x plus 1
D.) p(x) = 500(1.02)x

Answers

Answer: D

Step-by-step explanation:

An example of exponential function is  p(x) = 500(1.02)x Option D

Which of the following is an example of an exponential function?

An exponential function is a mathematical function of the form f(x) = [tex]a * b^x[/tex], where 'a' and 'b' are constants, and 'x' is the variable. The function p(x) = [tex]500(1.02)^x[/tex] is in this form

Where 'a' is 500, 'b' is 1.02, and 'x' is the variable.

The variable 'x' is an exponent, which makes it an exponential function. Option D

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6x¹⁸ divided by 9x⁶
please answer fast thanks!

Answers

Answer:

[tex]\frac{2}{3}x^{12}[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{6x^{18}}{9x^6}=\frac{6}{9}*\frac{x^{18}}{x^6}=\frac{2}{3}*x^{18-6}=\frac{2}{3}x^{12}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{6x^{18}}{9x^6}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{2}{3}x^{18-6}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{2}{3}x^{12}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{2x^{12}}{3}[/tex]

How much money would you have in your savings balance after 3 years if you initially invested $900 and had an interest rate of 1%?

$

Answers

assuming simple interest

[tex]~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$900\\ r=rate\to 1\%\to \frac{1}{100}\dotfill &0.01\\ t=years\dotfill &3 \end{cases} \\\\\\ A=900[1+(0.01)(3)]\implies A=900(1.03)\implies A=927[/tex]

Which of the following is a right triangle?

Answers

Answer:

B

Step-by-step explanation:

A right triangle must have one of its 3 angles equal to 90°

the only triangle with an angle of 90° is Triangle C

Answer:

B:Triangle

Step-by-step explanation:

solve this algebra Sentence

1) A number is added to five is equal to twelve. write an algebra sentence then solve the number

Answers

Let x be that number
We know x + 5 = 12 ( the number plus five equals to 12)
=> x = 12-5 = 7
So, that number is 7.

Answer

Let x be that number We know x + 5 = 12 ( the number plus five equals to 12)=> x = 5-12 = 7 so, that number is 7.

explanation:

Hope this helps:)

:3

have a good day or a beautiful day:3

Please help
Use absolute value to find the distance between 3 and -3 on a number line.
Enter your answer in the box.

Answers

Answer:

6

Step-by-step explanation:

fast!!!!!!! help me ​

Answers

hope you can understand

Benjamin finds some nickels and quarters under the couch cushions. How many
coins does he have if he has 8 nickels and 12 quarters? How many coins does he have
if he has a nickels and y quarters?

Answers

He has 20 coins and a total of $3.40

Benjamin has 340 cents or $3.40.

What is Proportion?

Proportion in Mathematics is an equation where two or more ratios are made to be equal.

If a : b = c : d, then we can write a/b = c/d

We know that,

1 nickel = 5 cents

8 nickel = x cents

Using ratio and proportion,

1 : 5 = 8 : x

x = 8 × 5 = 40 cents

Similarly,

1 quarter = 25 cents

12 quarters = 12 × 25 = 300 cents

Total cents Benjamin has = 300 + 40 = 340 cents = $3.40

Hence, Benjamin has a total of $3.40.

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What ordered pair is closest to a local minimum of the function, f(x)?
A. (-1, -3)
B. (0, -2)
C. (1, 4)
D. (2, 1)​

Answers

Answer: Choice D.  (2, 1)

Reason:

See the screenshot below. I used GeoGebra to plot the points.

The sub group of points D, E, F form a bowl shaped region. Imagine a small parabola passing through these points. Point E is either the local min or very close to it. This is because point E is at the bottom of the bowl shape.

The functions f(x) and g(x) are shown on the graph.

The image shows two graphs. The first is f of x equals log base 3 of x and it is increasing from negative infinity in quadrant four as it goes along the y-axis and passes through 0 comma 1 to turn and increase to the right to positive infinity. The second is g of x and it is increasing from negative infinity in quadrant two as it goes along x equals negative 4 and passes through 0 comma negative 3 to turn and increase to the right to positive infinity.

Using f(x), what is the equation that represents g(x)?

g(x) = log3(x) – 4
g(x) = log3(x) + 4
g(x) = log3(x – 4)
g(x) = log3(x + 4)

Answers

Answer:

[tex]g(x)=\log_3(x+4)[/tex]

Step-by-step explanation:

Translations

For [tex]a > 0[/tex]

[tex]f(x+a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units left}[/tex]

[tex]f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]

[tex]f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}[/tex]

Parent function:

  [tex]f(x)=\log_3x[/tex]

From inspection of the graph:

The x-intercept of [tex]f(x)[/tex] is (1, 0)The x-intercept of [tex]g(x)[/tex] is (-3, 0)

If there was a vertical translation, the end behaviors of both g(x) and f(x) would be the same in that the both functions would be increasing from -∞ in quadrant IV.

As the x-intercepts of both functions is different, and g(x) increases from -∞ in quadrant III, this indicates that there has been a horizontal translation of 4 units to the left.

Therefore:

[tex]g(x)=f(x+4)=\log_3(x+4)[/tex]

Further Proof

Logs of zero or negative numbers are undefined.

From inspection of the graph, [tex]x=-3[/tex] is part of the domain of g(x).

Therefore, input this value of x into the answer options:

 [tex]g(-3)=\log_3(-3)-4\implies[/tex] undefined

 [tex]g(-3)=\log_3(-3)+4\implies[/tex] undefined

 [tex]g(-3)=\log_3(-3-4)=\log_3(-7)=\implies[/tex] undefined

 [tex]g(-3)=\log_3(-3+4)=\log_3(1)=0[/tex]

Hence proving that [tex]g(x)=\log_3(x+4)[/tex]

The equation that represents g(x) is:  [tex]g(x) = log_3(x + 4)[/tex]

The correct answer is: the fourth option:

[tex]g(x) = log_3(x + 4)[/tex].

Here, we have to find the equation that represents g(x) using f(x), we need to consider how the graph of g(x) is related to the graph of f(x).

The graph of f(x) = log base 3 of x starts from negative infinity in quadrant four, passes through (0, 1), and increases to positive infinity.

The graph of g(x) is increasing from negative infinity in quadrant two, passes through (0, -3), and increases to positive infinity.

So, we can see that the graph of g(x) is the graph of f(x) shifted 4 units to the left along the x-axis.

Therefore, the equation that represents g(x) is:

[tex]g(x) = log_3(x + 4)[/tex]

The correct answer is: the fourth option:

[tex]g(x) = log_3(x + 4)[/tex].

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N(-2,-2) After a rotation 90 degrees counterclockwise

Answers

Answer: (2,-2)

Step-by-step explanation:

Rotating 90 degrees counterclockwise (about the origin) maps (x,y) onto (-y,x), so the answer is N'(2,-2)

Question 4
(Essay Worth 10 points)
(06.05 MC)
a Iris is a botanist who works for a garden that many tourists visit. The function f(s) = 2s + 25 represents the number of flowers that bloomed, where s is
seeds she planted. The function s(w) = 25w represents the number of seeds she plants per week, where w represents the number of weeks.
Part A: Write a composite function that represents how many flowers Iris can expect to bloom over a certain number of weeks. (4 points)
Part B: What are the units of measurement for the composite function in Part A? (2 points) (2
Part C: Evaluate the composite function in Part A for 30 weeks. (4 points)

Answers

A) Composite function that represents how many flowers Iris can expect to bloom over a certain number of weeks is f[s(w)] = 50w + 25.

B) The unit of measurement for the composite function is flowers.

C) Number of the flowers for 30 weeks will be 1525.

What is a composite function?

A function is said to be a composite function when a function is written in another function. The composite function that represents the number of flowers is f[s(w)] = 50w + 25. and the number of flowers for 30 weeks is 1525.

Part A: Write a composite function that represents how many flowers Iris can expect to bloom over a certain number of weeks.

From the given data we will find the function for the number of flowers with time.

f(s) = 2s + 25

We have  s(w) = 25w

f[(s(w)]=2s(w) + 25

f[(s(w)] = 2 x ( 25w ) +25

f[s(w)] = 50w + 25.

Part B: What are the units of measurement for the composite function in Part A

The expression f[s(w)] = 50w + 25 will give the number of the flowers blooming over a number of the weeks so the unit of measurement will be flowers.

Part C: Evaluate the composite function in Part A for 30 weeks.

The expression f[s(w)] = 50w + 25 will be used to find the number of flowers blooming in 30 weeks put the value w = 30 to get the number of the flowers.

f[s(w)] = 50w + 25.

f[s(w)] = (50 x 30) + 25.

f[s(w)] = 1525 flowers.

Therefore the composite function is f[s(w)] = 50w + 25. unit will be flowers and the number of flowers in 30 weeks will be 1525.

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Is (2,11) a solution to the equation y = 3x - 2 ?

Answers

Answer:

No (2, 11) is not a solution.

Step-by-step explanation:

y = 3x - 2

Plug in the points:

11 = 3(2) - 2

Solve:

11 = 6 - 2

11 = 4

11 does not equal 4.

Hope this helps.

Answer:

(2,11) is not a solution

Step-by-step explanation:

Substitute the value of x and y in the equation.

  y = 3x - 2

Substitute(2,11)

   11= 3*2 -2

        = 6 - 2

    11 ≠ 4

(2,11) is not an solution of the equation

What is the location of the image of P(−8, 1) after a counterclockwise rotation of 90° about (−2, 6) ?

Answers

Answer:

(3, 0)

Step-by-step explanation:

Given:

Image:  P = (-8, 1)Center of rotation:  (-2, 6)

Rotation rule for -90°:  (x, y) → (y, -x)

As the center of rotation is not the origin, we cannot simply apply the above rule.

To rotate an image around a point other than the origin:

1.  Subtract each point of the image from the point of rotation:

⇒ Point of rotation - point of image

⇒ (-2, 6) - P = (-2, 6) - (-8, 1)

                    = (6, 5)

2. Rotate this about the origin by applying the rotation rule:

⇒ (x, y) → (y, -x)

⇒ (6, 5) → (5, -6)

Add the point of rotation to each rotated point of the image:

⇒ (5, -6) + (-2, 6) = (3, 0)

Therefore, the location of the image of P (-8, 1) after a counterclockwise rotation of 90° about (-2, 6) is (3, 0).

Which statement about the point (-1,0) is true?

Answers

Answer:

Yes

Step-by-step explanation:

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