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
Answer choices:<br> 0<br> 1<br> -1<br> -2 ( chose this and got it wrong so it's not this)
Dmitry [639]
Use the formula for average rate of change over an interval of two points:

\frac{y_2 - y_1}{x_2 - x_1}

We have two points: (-2, -1) and (0, -1). Plug the values into the formula:

\frac{-1 - (-1)}{0 - (-2)} = \frac{0}{2} = 0

The average rate of change over the interval [-2,0] is 0.
5 0
4 years ago
Read 2 more answers
Al changes saved
Sever21 [200]

Answer:

<em>A) 0.1079</em>

Step-by-step explanation:

3 0
3 years ago
Su mei recipe for bean sald calls for 3 cans of lima beans 2 cans of pinto bean and 2 kidney renuin suppose she use 9 cans of li
fredd [130]

Answer: She will use 6 cans of pinto beans .

She will use 6 cans of kidney beans.

Step-by-step explanation:

As per given,

For bean salad : lima beans : pinto beans : kidney beans

= 3:2:2

Let quantity of lima beans = 3x, pinto beans 2x , kidney beans 2x.

if she use 9 cans of lima beans, then

3x=9

⇒x=9

Now, 2x= 2 x 3 =6

Thus , she will use 6 cans of pinto beans and 6 cans of kidney beans.

4 0
3 years ago
(100)• (-0.09) 7th Grade math
matrenka [14]

Answer:

-9

Step-by-step explanation:

100 x -.09 = -9 (move the decimal over two places to the right because you are multiplying by 100)

8 0
3 years ago
Which of the following would best be solved using factoring the difference of squares? 2² + 3x - 10 = 0 O 3r² + 12x = 8 2³ +52²
IgorC [24]

Given: Different equations

To Determine: Which would be best solved using difference of two squares

Solution

The factorization of a difference of two squares is given below

a^2-b^2=(a-b)(a+b)

Let us examine each of the given equation

\begin{gathered} x^2+3x-10=0 \\ x^2-2x+5x-10=0 \\ x(x-2)+5(x-2)=0 \\ (x-2)(x+5)=0 \end{gathered}\begin{gathered} 3x^2+12x=8 \\ 3x^2+12x-8=0 \end{gathered}\begin{gathered} x^3+5x^2-9x-45=0 \\ x^2(x+5)-9(x+5)=0 \\ (x+5)(x^2-9)=0 \\ x^2-9=x^2-3^2=(x+3)(x-3) \\ Therefore \\ (x+5)(x+3)(x-3)=0 \end{gathered}\begin{gathered} x^2-25=0 \\ x^2-5^2=0 \\ (x+5)(x-5)=0 \end{gathered}

From the above,

\begin{gathered} x^3+5x^2-9x-45=0 \\ AND \\ x^2-25=0 \end{gathered}

The two equation above can be solved by difference of two square, but the equation below is the easiest solved using differnce of two square

x² - 25 = 0

3 0
1 year ago
Other questions:
  • Help please ASAP i WILL mark brainliest !!!!
    12·1 answer
  • Y=-10 y = 7x - 42 (any answer?
    11·1 answer
  • If f(x) = 5x, what is f^-1(x)
    12·2 answers
  • Given: f(x) = 1/x+5 and g(x) = x-2.
    7·2 answers
  • Help help help help help help help help due tmr
    6·2 answers
  • What is the 20th term of the arithmetic sequence?
    6·2 answers
  • Solve the equation 5w-5+4w-4
    15·1 answer
  • Sammy´s candy is solid in cylindircal containers that are 20 cm tall and have bases with a radius of 8 cm each.
    8·1 answer
  • Please help rn!!!!!!!!
    13·1 answer
  •  The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day 358 people entered the park,
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!