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
Solnce55 [7]
3 years ago
8

Sally drew a circle with right triangle PRQ inscribed in it, as shown below: The figure shows a circle with points P, Q, and R o

n it forming an inscribed triangle. Side PQ is a chord through the center and angle R is a right angle. Arc QR measures 40 degrees. If the measure of arc QR is 40°, what is the measure of angle PQR? 20° 40° 50° 70°
Mathematics
2 answers:
vovikov84 [41]3 years ago
7 0

Answer:

The answer is 70 degrees

Naddika [18.5K]3 years ago
5 0

Answer:

Step-by-step explanation:

Side PQ is a chord through the center and angle R is a right angle. This means that side PQ is the diameter of the circle.

Let O represent the center of the circle.

If the measure of arc QR is 40°, it means that the central angle formed by arc QR is 40°. Side OR and side OQ are equal because they are both radius of the circle. Therefore, ∆QOR is an isosceles triangle and the base angles are equal.

Therefore, ∠PQR = ∠ORQ

Since the sum of the angles in a triangle is 180°, then

∠PQR = (180 - 40)/2 = 140/2

∠PQR = 70°

You might be interested in
5 What is the perimeter? use 3,14
Lera25 [3.4K]

Answer:

I don't understand the instructions, but I'll answer the question in the picture.

The angle next to 52 is vertical to y, so,  90-52=y.

Thus, y=38

6 0
2 years ago
THE table shows the number of pages blaine read for different times. How many pages will blaine read in 42 minutes?
Mkey [24]

Answer:

126 pages

Step-by-step explanation:

From the table, we know that Blaine can read 6 pages in 2 minutes. Therefore, Blaine can read \frac{6}{2}=3 pages per minute. Therefore, Blaine can read 42*3=126 pages in 42 minutes. Hope this helps!

8 0
2 years ago
A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles
worty [1.4K]

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}

We get a probability of:

P= \frac{1}{27}

This converts to a percentage of:

\frac{1}{27}= 0.037 \\ 0.037*100= 3.7%

We get a percentage of 3.7%

8 0
3 years ago
Which of these is greatest number that rounds to 9?
Sonja [21]
If anything is above 5 it will round up
3 0
3 years ago
Read 2 more answers
Find the volume of the cube
Svet_ta [14]

This is a rectangular prism.  Its volume is V = (length)(width)(height).

Here, V = (10 cm)(3 cm)(2 cm) = 60 cm^3.

4 0
3 years ago
Other questions:
  • The teacher gave this pattern to the class: the first term is 5 and the rule is add 4, subtract 1. Each student says one number.
    11·1 answer
  • Find all points having an x coordinate of -3 whose distance from the point (-6,5) is 5
    12·1 answer
  • Are the ratios 25/45 and15/27 proportional?
    8·2 answers
  • I need to find all roots of x^4 - 64x
    15·1 answer
  • Solve the equation algebraically. x^2-7x-1/7=0
    15·1 answer
  • I need the answer to this asap​
    9·1 answer
  • Which equation has a constant of proportionality equal to 555? Choose 1 answer:
    9·2 answers
  • 49<br> 49<br> 8x-2<br> What’s the answer
    7·1 answer
  • Restaurateur Denny Valentine is evaluating two sites, Raymondville and Rosenberg, for his next restaurant. He wants to prove tha
    12·1 answer
  • A doctor orders 120 milligrams of medication to be given to a patient. If 0.5 milliliters of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!