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Reil [10]
3 years ago
5

A circle with a radius of 1 unit and center C at (-2, 1) is reflected across the x-axis. What are the coordinates of C’?

Mathematics
2 answers:
krok68 [10]3 years ago
7 0

The coordinates of c is -2, -1

irina1246 [14]3 years ago
4 0

the coordantes are -2-1

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What is AB?<br> a. 6cm<br> b. 9cm<br> c. 4cm<br> d. 2.2cm
Fed [463]

Answer:

AB = 4 cm

Step-by-step explanation:

The tangent and secant are drawn from an external point to the circle.

Then the square of the measure of the tangent is equal to the product of the external part of the secant and the entire secant.

let AB = x, then

x(x + 5) = 6²

x² + 5x = 36 ( subtract 36 from both sides )

x² + 5x - 36 = 0 ← in standard form

(x + 9)(x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x - 4 = 0 ⇒ x = 4

However x > 0 ⇒ x = 4 ⇒ b = 4 CM

7 0
3 years ago
Which property is illustrated by 3 + (2x + 4) = (3 + 2x) + 4
antoniya [11.8K]

Answer:

The answer is c, The commutative property of addition

Step-by-step explanation:

6 0
3 years ago
Respond to this for 5 points! I know it's not that much but just respond anything you want &lt;3
Marrrta [24]
Erm hi give me brainlyest for no reson

8 0
3 years ago
Read 2 more answers
Please help ‼️‼️ I’m doing functions
eduard
In this problem, you're looking for the value of t, so that f(t) = 48. That means if you put t into 5t-7, you'll get 48. To do this set up and solve an equation for t by setting 48 equal to 5t-7:
5t-7=48

Isolate the variable by adding 7 to both sides. 
5t=55

Divide by 5 on both sides to find t.
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The answer is 11.


8 0
3 years ago
Find the measure of &lt; AED for m &lt; BEC = 96
Strike441 [17]
I wish you would of put a picture but with what you gave me. if the angle is a straight line then you would just set it up like 96+x=180 bc a straight line ='s 180 and den subtract 96 from 180 which is 84 so x would = 84 if the angle is a supp. angle but til there's not a picture this might be wrong.
But i hope this helps have a nice nite!
5 0
3 years ago
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