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
weqwewe [10]
3 years ago
5

CALCULATE PR :) Merry Xmas btw

Mathematics
1 answer:
weeeeeb [17]3 years ago
4 0

Answer:

PR = 7.9

Step-by-step explanation:

By sine rule:

\frac{12.5}{ \sin \: 66 \degree}  =  \frac{PR}{ \sin \: 37 \degree}  \\  \\  \frac{12.5}{ 0.9135454576}  =  \frac{PR}{ 0.6018150232}  \\  \\ PR =  \frac{12 \times 0.6018150232}{0.9135454576} \\  \\ PR =  \frac{12 \times 0.6018150232}{0.9135454576}  \\  \\PR =  \frac{7.22178028}{0.9135454576}  \\  \\ PR = 7.90522269 \\  \\ PR \approx \: 7.9

You might be interested in
If y varies directly as the square of x and Y--54 when x-9, then -- when x-6.<br><br> True or false
mario62 [17]

Answer:

24.012

Step-by-step explanation:

y=kx^2

54=81k

k=54/81

k=0.667

y=kx^2

y=0.667×36

y=24.012

8 0
2 years ago
Brayden has 342 marbles in bags. If there are 9 marbles in each bag, how many bags of marbles does Brayden have If Brayden gives
Firlakuza [10]
Brayden has 38 bags.
After giving away 15 bags of marbles, Brayden is left with 23 bags.

To find out how many bags he has we do 342 divided by 9 which is 38.

To find out how many marbles are in 15 bags we do 15 x 9 which is 135.
We then do 342 - 135 to find out how many marbles he has left which is 207 and divide 207 by 9 to convert that into bags, which is 23.
8 0
3 years ago
If the discrminant of a quadratic equation is 4, which statement describes the roots
ryzh [129]

<em>Hi ^^</em>

<u>Note: This answer is already on brainly, but to save up your time here is the answer (the owner of the answer is listed below).</u>

<em>Owner:  timothycarney2004</em>

<em>Rank: Ambitious</em>

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

<u>Answer:</u><em> There are </em><u>two </u><em>real roots </em>

<em> </em><u>Step-by-step explanation:</u><em> Terms in this set (6) If the discriminant of a quadratic equation is 4, which statement describes the roots? B. There are two real roots.</em>

<em>--------------------------------------------------------------------------------------------------------------</em>

<em />

Anyways bye! <3

4 0
2 years ago
4 -12 36 -108 324 what's the rule
balandron [24]
Hello,
u_{1}=4\\&#10;u_{2}=4*3=12\\&#10;u_{3}=4*3^2=36\\&#10;u_{4}=4*3^3=108\\&#10;...\\&#10;&#10;\boxed{u_{n}=4*{n-1}}\\
6 0
3 years ago
If quadrilateral BCDE is congruent to quadrilateral OPQR, then line DE Id congruent to ______?
Andru [333]
DE is congruent to QR
6 0
3 years ago
Read 2 more answers
Other questions:
  • 3x^2-x-16=0 Solve this question
    10·2 answers
  • 72.5 m long x 28.5 m wide. The club needs to replace the protective padding on the barrier. The protective padding is sold in 3
    6·1 answer
  • Rewrite the expression without using grouping symbols. 4(x – 2)
    13·1 answer
  • In a triangle , the measures of the angles are x,x + 20 &amp; 2x . What is the value of x ?
    10·1 answer
  • Please help appreciate it!!
    15·2 answers
  • Anyone know how to solve these
    13·1 answer
  • In what ways do the agati and the Brazil nut tree depend on each other ​
    9·1 answer
  • Too what's the answer or something
    14·1 answer
  • Please help!!!!!!!<br> picture below
    14·1 answer
  • What is the domain of the quadratic function graphed below?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!