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
How do you solve for 2y=x+3
andrew-mc [135]
You divide everything by 2.
Your answer is
Y=1/2 + 3/2
4 0
4 years ago
Read 2 more answers
Does anyone know the answer to 4x+6x=9x
BigorU [14]
Are you sure you wrote that the right way?
5 0
3 years ago
Read 2 more answers
a car travels from A to city B. for the first 30 minutes, the car travels at the constant speed of 45 mph. the car speed up and
Masteriza [31]

Answer:217.5 miles

Step-by-step explanation:

6 0
4 years ago
Write the number in standard notation. 4.16 × (10) ^–5
yaroslaw [1]

Answer:

.0000416

Step-by-step explanation:

Since 10 is squared by a negative number, the number (4.16) will be smaller. To find the answer, move the decimal 5 places to the left

4 0
4 years ago
Read 2 more answers
Segment AB has length a and is divided by points P and Q into AP , PQ , and QB , such that AP = 2PQ = 2QB. A) Find the distance
Deffense [45]

Answer:

A) \frac{7}{8}a

B) \frac{5}{8}a

Step-by-step explanation:

AB has length a and is divided by points P and Q into AP , PQ , and QB , such that AP = 2PQ = 2QB

A) Therefore, AP = 2QB

QB = AP/2

The midpoint of QB = QB/2 = (AP/2)/2 = AP/4

AP = 2PQ, Therefore PQ = AP/2

Since the length of AB = a

AB = AP + PQ + QB = a

AP + AP/2 + AP/2 = a

AP + AP = a

2AP = a

AP = a/2

The distance between point A and the midpoint of segment QB = AP + PQ + QB/2 = AP + AP/2 + AP/4 = 7/4(AP)

But AP = a/2

Therefore The distance between point A and the midpoint of segment QB =  7/4(a/2)= \frac{7}{8}a

B)

the distance between the midpoints of segments AP and QB = AP/2 + PQ + QB/2 = AP/2 + AP/2 + AP/4 = 5/4(AP)

But AP = a/2

Therefore the distance between the midpoints of segments AP and QB = 5/4(AP) = \frac{5}{4} *\frac{a}{2}=\frac{5}{8}a

7 0
3 years ago
Other questions:
  • The radius of the cone is 1.75 inches, and its height is 3.5 inches. If the diameter of the bubble gum ball is 0.5 inches, what
    15·1 answer
  • Which postulate or theorem can be used to prove that ΔABC ΔEDC?
    12·2 answers
  • 7x/2+5=8<br><br> solve for x
    7·2 answers
  • According to the line of best fit, about how many ounces of frozen yogurt can someone purchase for $5
    7·1 answer
  • If john makes a contribution to a charity fund at school, the average contribution size will increase by 50% reaching $75 per pe
    12·1 answer
  • Which pair of points lies below the x-axis?
    6·1 answer
  • #1 someone help me with this question pls ??
    13·1 answer
  • Last week Rachel walked 235 miles per day on each of the 7 days. During the same week, she also jogged 534 miles per day on 4 da
    6·2 answers
  • Need help please. What is the area of the shaded region. Thank you so much.
    5·1 answer
  • Compare the expressions using &gt;, &lt; or =<br> -5 + (-3) and -5- (-3)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!