Mathematics High School

Use the information to solve the triangle. Round your answers to two decimal places. Hint: draw a sketch first to determine if you should use Law of Sines or Cosines.

C=123°, a=41, b=57

Answers

Answer 1

Answer:

c = 86.5 (3 sig. fig)

A = 23.4° (3 sig. fig.)

B = 33.6

Step-by-step explanation:

Using cos Law,

c = √(57² + 41² - 2(57)(41)cos(123))

c = 86.5 (3 sig. fig)

Using sin Law,

sinA/41 = sin123/86.5

A = 23.4° or 157° (rejected) [C is 123°, if A is 157, it violates the angle sum of triangle]

Using angle sum of triangle,

B = 180 - 23.4 - 123 = 33.6

Related Questions

What’s the answer guy in need it in 5 minutes

Answers

y= -2/3x+490
slope= -2/3
y-int = 490 i believe

Can someone please help me with this geometry?

Answers

Answer:

(see below)

Step-by-step explanation:

A reflection across the y-axis is the same thing, but just mirrored on the other side. In this case, "the other side" is the y-axis.

The original rectangle was two units away from the y-axis, so this new rectangle needs to be as well.

Its area needs to also be 2 units big.

Pretty much, it's the same thing and you just place it up to a mirror.

Refer to the image below:

BRAINIEST!!

What percent of the students surveyed have 2 or more siblings?

Answers

Answer:

50&

Step-by-step explanation:

How many three-digit numbers are divisible by 3.

Answers

Answer:

300 numbers are divisible by 3

Step-by-step explanation:

some of them include

102,105,108,111,114,117,120,123,126,

129,132,135,138,141,144,147,150,153,

156,159,162,165

i don't have an explanation just knew form a while back  

hope this helped though :)

The numbers have to add up to a number divisible by 3

PLEASE HELP!! GIVING BRAINIEST WHEN TWO PEOPLE ANSWER!!!

Answers

Answer:

Bright lemonade

Step-by-step explanation:

A dog named Bailey buried his bone 7/10 foot underground. A dog named Daisy buried her bone 11/15 foot underground. Which dog dug the deeper hole?

Answers

Answer:

Daisy

Step-by-step explanation:

To compare, we want common denominators. 30 is a common multiple of both of them.

(7/10)*3 = 21/30

(11/15)*2 = 22/30

Daisy buried her bone 1/30 further underground  than Bailey

Answer:

Daisy!

Step-by-step explanation:

One way to see what fraction is bigger is to find the GCF. (greatest common factor) Meaning, find a number that 10 and 15 can multiply to. Let's say 5. Since you divided  10 by 2, divide 7 by 2. Since you divided 15 by 3, divide 11 by 3.

7/10 becomes 3.5/5

11/15 becomes 3.6/5

So, Daisy buried her bone deeper.

Hope this helps! Sorry if it doesn't make much sense just ask me if you have any questions! :)

Select on the situations that can be represented by the tape diagram plzzzzz helppp

Answers

Answer:

3

Step-by-step explanation:

Answer:

B and C represent it.

Step-by-step explanation:

If Andre babysat 5 times and earned the same amount each time then it would be represented by the five rectangles with W on them.

If Andre got a $4 tip at the end of the month then it would be represented by the small 4 rectangle at the end.

If Andre made a total of 99 dollars then the large grouping 99 at the top would represent that.

If a family of 5 went to a concert in which all tickets costed the same then it would be represented by the five rectangles with W on them.

If they paid $4 for parking then it would be represented by the small 4 rectangle at the end.

If they spent a total of 99 dollars then the large grouping 99 at the top would represent that.

a persons salary is $2,500 per month. she received a 10% raise. What is her new salary in dollars per month?

Answers

Answer:

2750

Step-by-step explanation:

10% of 2500 is 250

250 + 2500 = 2750

HELPPP PLEASE PLEASE
Please just help on number 15 16 17

Answers

Answer:

use formaul

Step-by-step explanation:

help asap ill mark brainliest

Answers

The answer is D!!!!!!
Answer
I’m pretty sure it’s D

Joh finished 16 minutes of his workout. He is 20% done. How long is his workout?

Answers

Answer:

80 minutes

Step-by-step explanation:

Scientists are monitoring the pH of oceans. Which of these are they most likely studying?
A. The level of carbon dioxide in the air
B. The population of polar bears
C. The health of coral colonies
D. The rise of sea level

Answers

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

A or The level of carbon dioxide in the air

help me! i need this answer

Answers

Answer:

x=15

Step-by-step explanation:

Please mark brainliest

Given that 6 > -2, which statements are true? Check all that apply.
(2)(6) > (-2)(2)
-2
2 2
(-2)(6) > (-2)(-2)
-2
-2 --2
(2)(6) < (-2)(2)
-2
2 2
NIO

Answers

Answer:

hello rspl social science sample paper chaye

Answer:

i don't know

Step-by-step explanation:

1. Which of the following represent distributive property?
a. 3x + 5= 5 + 3x
b. 3(x+5) = 3x + 15
C. 5x1 = 5
d. 3 + (x + 5) = (3 + x) + 5

Answers

I think the answer is B hope this helps.

Answer:

B

Step-by-step explanation:

Distribute means to multiply everything in the parenthesis by 3, the others demonstrate other properties


Help!!!! I WILL GIVE BRAINLIEST !!!!

Answers

I think it’s c sorry if I’m wrong

Help me answer all of those questions

Answers

1) 100N 2) 0.3m/s² 3) 1/2 kg

Step-by-step explanation:

1) F = ma

F = 50×2

F = 100N

2) F = ma

9000 = 30000×a

(9000÷30000) = a

a = 0.3m/s²

3) F = ma

1 = m×2

(1÷2) = m

m = 1/2 kg

Here's the png with the question. I think I have the right answer but I need help.

Answers

Answer:

the answer u have is right cause i have telepathy

Step-by-step explanation:

Answer:

D because you add the top and bottom then multiply height. Then divide by 2

Step-by-step explanation:

The Sumner Museum had collected family photos of town residents for more than a
century. The museum director reported that between 1890 and 1900, the average family
photo had 5 family members in it. They had 163 family photos from that decade.
163 photos
1890-1900, 5 family members
About how many people would you expect to see in all of the photos from the decade
1890-1900?

Answers

Answer:

3

Step-by-step explanation:

444444444444

Keith leaves a 15% for a dinner bill of $25. What amount of tip does Keith leave? $ What is the total bill? $

Answers

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that Keith leaves a 15% for a dinner bill of $25. The amount of tip that Keith leaves will be calculated by multiplying 15% by $25. This will be:

= 15% × $25

= 15/100 × $25

= 0.15 × $25

= $3.75

Keith's total bill will be gotten by adding the dinner bill plus the tip together. This will be:

= $25 + $3.75

= $28.75

(I will award most brainly)

Can I have some help with this?

Answers

Answer:

uhhhh...with what..? I think you forgot the file lol

Step-by-step explanation:

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

Please help me my teacher won’t help me at all :/

Answers

Answer:

1 to 75

2 to 120

3 to 165

4 to 210

5 to 255

Step-by-step explanation:

Solveeeee!!!!!!iiippp

Answers

the answer is less than 1/8 of a pizza. 1/4 divided by 6 = 1/4 x 1/6 = 1/24

and it is less than 1/8, pretty obvious.

I need help plzzz...thanks

Answers

Answer:

a^2+12^2=16^2

then just solve for a

Answer:

x=10.58

Step-by-step explanation:

To find the side length of a right triangle, you can use the Pythagorean theorem.

The Pythagorean theorem is [tex]a^2+b^2=c^2[/tex]

the c is the hypotenuse of the triangle, so 16.

the a and b are the other sides of the triangle, so x and 12.

Therefore, [tex]x^2+12^2=16^2[/tex]

       now you can solve the equation.

[tex]x^2+144=256[/tex]

      -144    -144

[tex]x^2=112[/tex]

now you have to square root both sides of the equation.

[tex]\sqrt{x^2} =\sqrt{112}[/tex]

x=10.58

What will be the new position of the given point (–2, –3) after reflection across the x-axis?
a) (2, 3)
b) (-3, -2)
c) (-2, 3)
d) (3, -2)

Answers

Answer:

(2,3)

Step-by-step explanation:

The new position of the point (–2, –3) after reflection across the x-axis is (-2,3)

How to determine the new position?

The point is given as:

(-2,-3)

The rule of reflection across the x-axis is:

(x,y) -> (x,-y)

So, we have:

(-2,-3) -> (-2,3)

Hence, the new position of the point (–2, –3) after reflection across the x-axis is (-2,3)

Read more about reflection at:

https://brainly.com/question/4289712

#SPJ2

WILL GIVE BRAINLIEST!
What polynomial must be subtracted from 2x3 − x2 + 5x − 3 so that the difference is
x3 + 2x − 6?

Answers

Answer:

x^3-x^2+3x+3

Step-by-step explanation:

Subtract x3 + 2x − 6 from  2x3 − x2 + 5x − 3 and you will get x^3-x^2+3x+3.

The polynomial must be subtracted from 2x³ − x² + 5x − 3   so that the difference is x³ + 2x − 6  is x³ - x² + 3x + 3 .

What is polynomial?

A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. An example of a polynomial of a single indeterminate x is x² − 4x + 7.

According to the question

2x³ − x² + 5x − 3

polynomial must be subtracted so that the difference is

x³ + 2x − 6

Let the value of polynomial is A .

Now,

(2x³ − x² + 5x − 3 ) - A = x³ + 2x − 6

A = 2x³ − x² + 5x − 3 - (x³ + 2x − 6 )

A = 2x³ − x² + 5x − 3 - x³ - 2x + 6

Like terms will add or subtract only

A =  x³ - x² + 3x + 3

Hence, The polynomial must be subtracted from 2x³ − x² + 5x − 3   so that the difference is x³ + 2x − 6  is x³ - x² + 3x + 3 .

To know more about  polynomial  here:

https://brainly.com/question/11536910

#SPJ3

Nick bought a video game for $55, which has 20% off the original price. What
was the original price?

Answers

Answer:

I think it is $66 at first sorry if wrong

Company 2 charges $4600 for the first 550 feet of fence and $29 for each additional foot. Find the cost if Company 2 completes the job. Show your work. The total fencing is 615.21

Answers

All you have to do here is subtract 550 from 615.21, and then determine how much those remaining feet will cost. Add that to the original $4600 and you have your answer. I recommend using scrap paper.

Frank keeps his pet iguana in a glass tank that is shaped like a rectangular prism.
The height of the tank is 11 inches, the width is 34.5 inches, and the length is 25 inches.
What is the best estimate for the volume of the tank in cubic feet?
Remember 12 inches = 1 foot.
A. 4 ft3
B. 6 ft3
C. 9 ft3
D. 12 ft3

Answers

Answer: D. 12 ft3

Step-by-step explanation:

Can someone plz help me with this one problem plz I’m being timed!!!!!

Answers

Answer:

#2

Step-by-step explanation:

type the equation in2 the desmos graphing calculator

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