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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°

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Complete the generic rectangle (PLEASE HELP)
navik [9.2K]

I believe the area of the blank rectangle, the biggest one, is 2800. The whole rectangle all together is 3225.

Explanation:

Since the length of one of the rectangles is 70, the rectangle with an area of 210 will have a side length of 3. This means the rectangle with an area of 15 has a side length of 5. <em>That</em> means the rectangle with an area of 200 has a side length of 40. Therefore, the blank rectangle has an area of 2800, as it's 2 side lengths are 70 and 40.

4 0
3 years ago
Help please... <br>show work if you can<br>Thank you!!!​
son4ous [18]
Just cut the piece into two and multiply all the sides
7 0
2 years ago
Read 2 more answers
Write an equation of the line perpendicular to the given line that contains P.
Shalnov [3]

Answer:

Step-by-step explanation:

perp. -5

y + 7 = -5(x - 4)

y + 7 = -5x + 20

y = -5x + 13

8 0
3 years ago
(PLEASE HELP) The table below - does it represent an exponential function?
Aliun [14]
Short answer: I don't know, but that doesn't mean I can't give you something that you can decide for yourself.
y = 4*2^(2n - 2) is the pattern.
Go for broke. Try n = 4. You should get 256. Let's try it.
y = 4 * 2^(2*4 - 2)
y = 4 * 2^(8 - 2)
y = 4 * 2^6
y = 4 * 64
y = 256 yup it works.

The other end is just as important. Suppose n = 1
Then y = 4 * 2^(2*1 - 2) = 4 * 2^0 = 4*1 = 4 Both work.

If this formula is correct, we can abbreviate it to make your task easier.
y = 4 * 2^(2n - 2)
y = 2^2 * 2^(2n - 2)
y = 2^(2n - 2 + 2)
y = 2^(2n) Now try the two end points again.

n = 4
y = 2^(2*4)
y  =  2^8
y = 256

n = 1
y = 2^(2*1)
y = 2^2
y = 4 which again checks.

so y = 2^(2n) I think is an exponential function.
Sorry my explanation is so long.

6 0
3 years ago
complet. each statement by rounding the number to given place value. use the number line to show your work a 53,000 rounded to t
tresset_1 [31]
50,000 because when the number next to the main number is below 5 then you round down...if it is 5 or above then you round up
5 0
3 years ago
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