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
butalik [34]
3 years ago
14

1. Find the value of x. A. 90 B. 80 C. 60 D. 45

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0

Answer:

A 90

Step-by-step explanation:

multiple ways to prove this.

e.g. since the angle between the two lines from the center of the circle to the 2 tangent touching points is 90 degrees (that is the meaning of these 90 degrees here as the angle of the circle segment defined by the 2 tangent touching points and the circle center), the tangents have the same "behavior" as tan and cot = the tangents at the norm circle at 0 and 90 degrees. they hit each other outside of the circle again at 90 degrees.

another way

imagine the two right triangles of the tangents crossing point to the circle center and the tangent/circle touching points.

the Hypotenuse of each triangle is cutting the 90 degree angle of the circle segment exactly in half (due to the symmetry principle). so the angle between radius side and Hypotenuse is 90/2 = 45 degrees.

that means also the angle of such a right triangle at the tangent crossing point is 45 degrees (as the sum of all angles in a triangle must be 180, we have the remainder of 180 - 90 - 45 = 45 degrees).

the angles of both right triangles at that point are the same, and so we can add 45+45 = 90 degrees for the total angle at the tangent crossing point.

You might be interested in
B) Write down the formula to find the perimeter of a circle.​
rewona [7]

Answer:

C = 2πr

Step-by-step explanation:

We know that, the perimeter of a figure is equal to the sum of all sides.

A circle having no sides.

The perimeter of a circle = The circumference of the circle

The formula for the circumference of the circle is given by :

C = 2πr

Where

r is the radius of the circle

Hence, this is the required solution.

7 0
3 years ago
What is the length of the diagonal?
Anon25 [30]
The answer is 16\sqrt{8} i hope this answer helps you!
4 0
3 years ago
Read 2 more answers
Can someone help me with graphing this function?
Paul [167]

p.s. Excuse the scribble.

Step-by-step explanation:

This is a piece-wise function. The three intervals we need to worry about are [0, 1), [1,2], and [2,4].

Separate the functions into their pieces and draw out the individual graphs. Place them together onto the graph within their respective intervals.

5 0
3 years ago
Billy says that he can add 23 and 40 without regrouping is Bill correct how do you know
bija089 [108]
Yes he is correct because if you do the algorithm, 0+3=3 and 20+40=60 and 60+3=63. There is no regrouping needed.
6 0
3 years ago
?? please help with this
mestny [16]

Answer:

The Third one

Step-by-step explanation:

Because the y is not included in the function ( see some lines ) and x is the same thing but it is larger than -3 and it is included in the function .

I hope that it's a clear solution and explanation.

6 0
3 years ago
Other questions:
  • If m varies directly with n.<br>and m = 20 when n = 5.<br>what is it m= 18?​
    6·1 answer
  • The price per share of Us toys stock fell from $38.58 to $28.82. Find the percent of decrease in price.
    8·1 answer
  • Write 0.15151515 as a fraction
    5·1 answer
  • Mr. Stevens is having flowers delivered to his house for his wife's birthday that cost $45.50 including tax. he wants to give th
    14·2 answers
  • Please help with this question. The length of a jogging trail is 3528 m. A jogger wants to complete the trail within 30 min.
    15·2 answers
  • Recreational fishers enjoy fishing for the Red Drum fish. In order to check on the Red Drum population, scientists often catch t
    5·1 answer
  • Find the reciprocal of 18/5÷2=
    7·1 answer
  • Can you help me on 19 and 20?!
    14·1 answer
  • At the local pet store, zebra fish cost $2.05 each and neon tetras cost $2.30 each. If Sameer
    9·1 answer
  • Can someone help me<br> question down below
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!