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
Makovka662 [10]
3 years ago
6

Which pair of equations can be used to solve for x in PQR?

Mathematics
1 answer:
almond37 [142]3 years ago
7 0

Answer:

A

Step-by-step explanation:

sin57° = \frac{opposite}{hypotenuse} = \frac{PQ}{PR} = \frac{x}{18}

∠ P = 180° - (90 + 57)° ← sum of angles in triangle

∠ P = 180° - 147° = 33° , then

cos33° = \frac{adjacent}{hypotenuse} = \frac{PQ}{PR} = \frac{x}{18}

Thus the 2 ratios used to solve for x are A

You might be interested in
=1/3(3w - 12)= 1/6( 24-6w)
Taya2010 [7]
1w-4= 4-1w
+1w +1w
——————
2w-4=4
+4 +4
—————
2w=8
———
2. 2



w= 4
3 0
3 years ago
Read 2 more answers
Mary has made is going to make muffins. She needs 36 ounces. She has 16 ounces. How many more cups does she need?
pickupchik [31]
36 ounces - 16 ounces = 20 ounces so that should add up to about 2.5cups 
6 0
3 years ago
What is the range of y =5/2(x-2)² - 4
blagie [28]

Answer:

vertex:(2,-4)

Focus:(2,-\frac{39}{10} )

Axis of symmetry :x=2

Directrixt: y=-\frac{41}{10}

Step-by-step explanation:

7 0
4 years ago
Convert 720 hours into days. Explain.​
Ganezh [65]

30 days

Step-by-step explanation:

720/24

30

hope it helps ,pls mark me as brainliest

7 0
3 years ago
What is the value of x?<br><br>enter your answer in the box​
olganol [36]

Hey!

--------------------------------

Polygon: Heptagon

Vertices: 7

Sum of angles: 900°

--------------------------------

Solution:

158 + 120 + 139 + 121 + 125 + 126 = 789

900 - 789 = 111°

--------------------------------

Answer:

x = 111°

--------------------------------

Hope This Helped! Good Luck!

8 0
3 years ago
Other questions:
  • Laura is a chemist working with liquids and solutions. She has two large cylindrical barrels that can hold up to 2,000 liters ea
    5·1 answer
  • A road crew must repave a road that is 2/5 miles long.They can repave 1/30 miles each hour. How long will it take the crew to re
    15·1 answer
  • . Estimate the sum of 405 and 385 by<br>rounding to the nearest hundred. Explain<br>​
    5·2 answers
  • Please answer this correctly without making mistakes
    8·1 answer
  • ∠ABC measures 124° and ∠MNO measures 56°. Therefore, the two angles are
    13·1 answer
  • 1) On a road map, the distance from Louisville to St. Louis is 12 cm. If the map has
    13·2 answers
  • Karen is on a game show. She will choose a box to see if she wins a prize. The odds in favor of Karen winning a prize are 5/7. F
    13·2 answers
  • A) Show that 4x² -6x+9 is positive for all values real numbers x.
    14·1 answer
  • Help please i dont know how to do this
    9·2 answers
  • Can you pls help. <br> If you do I will give you brain list but only if it’s right
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!