1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksandr82 [10.1K]
2 years ago
6

Given the triangle below, find the length of XW . Round your answer to the nearest tenth.

Mathematics
1 answer:
Ghella [55]2 years ago
4 0

Check the picture below.

so let's use the law of sines then

\textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{1.9}{sin(Z)}~~ = ~~\cfrac{XZ}{sin(Y)}\implies \cfrac{1.9}{sin(89^o)}~~ = ~~\cfrac{XZ}{sin(70^o)}\implies \cfrac{1.9\cdot sin(70^o)}{sin(89^o)}=XZ \\\\[-0.35em] ~\dotfill

cos(21^o)=\cfrac{\stackrel{adjacent}{XW}}{\underset{hypotenuse}{XZ}}\implies XZ\cdot cos(21^o)=XW \\\\\\ \cfrac{1.9\cdot sin(70^o)\cdot cos(21^o)}{sin(89^o)}=XW\implies 1.7\approx XW

quick observation, the picture of the triangle is very misleading, since those angles as drawn are not good representers of the angles values.

You might be interested in
Side note: It’s ratio math
Elanso [62]

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

5 0
3 years ago
Evaluate (-7)2. <br><br><br> p l e a s e<br> a n s w e r <br> q u i c k\
devlian [24]

Answer:

(-7)2 = -14

Step-by-step explanation:

The parenthesis basically mean "multiply". So, this is a simple equation meaning -7 x 2. And remember, anytime we multiply a positive by a negative, you get a negative. So, simply multiply 7 x 2 = 14 and add a negative sign to make the solution true. So, -7 x 2 or (-7)2 = -14

Hope this helps! If you have any additional questions, please don't hesitate to ask me or your teacher to be sure you master the subject. Also thank you for the generous points!! Stay safe and please mark brainliest!!

7 0
3 years ago
Read 2 more answers
*^%Brainliest 15 pounds Question 5 (2 points)
galben [10]

Answer:

0

Step-by-step explanation:

Separate into two parts

\frac{4xy^{3} }{2xy^{2} }  +  \frac{8x^{2} {y}^{5} }{2x {y}^{2} }

Simplify:

This is for the first fraction

\frac{4x {y}^{3} }{2x {y}^{2} }  = (4 \div 2)(x \div x)( {y}^{3}  \div  {y}^{2} )

2(1)( {y}^{3 - 2} )

2{y}

Now for the second fraction:

\frac{8 {x}^{2} {y}^{3}  }{2x {y}^{2} }  = ( 8 \div 2)( {x}^{2}  \div x)( {y}^{5}   \div   {y}^{2} )

4( {x}^{2 - 1} )( {y}^{5 - 2} )

4x {y}^{3}

Add both parts together

2y + 4x {y}^{3}

To turn this into the said formula, that would become:

2 {x}^{0}  {y}^{1}  + 4 {x}^{1}  {y}^{3}

Where:

a=0

b=1

c=1

d=3

Any value with an exponent 0 except zero will be equal to 1

4 0
3 years ago
Use strips of paper 81/2 inches long. Each strip represents 1 whole. Fold
BlackZzzverrR [31]

Answer:

You didn't tell me what to do

Step-by-step explanation:

6 0
3 years ago
Kate Kevin and Levi are comparing how fast they can run. Kate was able to run 5 miles in 47.5 minutes. Kevin was able to run 8 m
mr Goodwill [35]
I think it would be Kate,Kevin and then Levi
I think
6 0
3 years ago
Read 2 more answers
Other questions:
  • Points M, N, and O are coplanar. Points N, O, and P are coplanar. Must points M, N, O, and P be coplanar? Explain.
    8·1 answer
  • Meredith borrows $12,560 and pays 2% simple interest each year for 4 years. What is the total amount of interest that she will p
    13·2 answers
  • PLZ HELP!
    8·1 answer
  • Complete the synthetic division problem below. What is the quotient in polynomial form?
    5·2 answers
  • I need help to find the missing side of this right triangle
    5·1 answer
  • Use words to explain how to multiply (3^3) (3^4).<br><br> Pls help
    11·1 answer
  • What is the answer to and how to solve7(11c+3)
    13·2 answers
  • Sarah changed the quadratic function x^2 - 8x+10 from
    8·1 answer
  • Give the x and y intercepts: x+3y=24
    15·1 answer
  • What is the relationship between the number of sides of the base of a prism and the number of lateral faces?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!