The line that touches a circle at one point is called the

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Answer 1
Answer:

Answer: Tangent

Explanation: For a circle a tangent is a straight line which touches the circle at only one point. It is also referred to as the line of tangency.


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It takes Doug 3 days to reroof a house. If Doug's son helps, it can be done in 2 days. How long would it take Doug's son to do the job alone?

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it would take his son 3 days

3/10 times what equals 1

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Answer:

10/3

hope this helps :)

I really need help I posted this question 3 times and no answers, can someone help I even put extra points and ill give brainliest <333

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Answer:

In a quadrilateral ABCD, ∠A = 100°, ∠B = 105° and ∠C = 70°, find ∠D.

Solution:

Here the sum of the four angles

or, ∠A + ∠B + ∠C + ∠D = 360°

We know, ∠A = 100°, ∠B = 105° and ∠C = 70°

or, 100° + 105° + 70° + ∠D = 360°

or, 275° + ∠D = 360°

∠D = 360° - 275°

Therefore,  = 85°

i hope this was helpful. <3

crown?

Solve 2cos^2x+3sinx=0

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Answer:

x =  {\sin^( - 1)  2}  \: \: or \:   \:  x =    (7\pi)/(6),   \:  \:  (5\pi)/(3)

Step-by-step explanation:

2 { \cos}^(2) x + 3 \sin x = 0 \n 2 {(1 -  \sin}^(2) x) + 3 \sin x = 0 \n 2 - 2 \sin^(2) x+ 3 \sin x = 0 \n  2 \sin^(2) x -  3 \sin x - 2 = 0  \n 2 \sin^(2) x -  4\sin x +  \sin x- 2 = 0  \n 2\sin x(\sin x - 2) + 1(\sin x - 2) = 0 \n (\sin x - 2)(2\sin x + 1) = 0 \n (\sin x - 2) = 0 \: or \: (2\sin x + 1) = 0  \n \sin x = 2 \: or \: 2\sin x =  - 1 \n x =  {\sin^( - 1)  2}  \: \: or \:   \: \sin x =   - (1)/(2) \n x =  {\sin^( - 1)  2}  \: \: or \:   \:  x =    (7\pi)/(6),  \:  \:  (5\pi)/(3)

If bulb 4 were removed from the circuit what would happen to the brightness of the remaining bulbs? would this change if bulbs 3 or 5 were removed rather than 4? explain.

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I thought i knew how to do this but I don’t, sorry

Evaluate the expression 2x2 - yl yl + 3xº for x = 4 and y = 7​

Answers

Answer:

replace the given values of x and y

Step-by-step explanation:

hope it helped!!!