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Liono4ka [1.6K]
3 years ago
13

381 1/10 - 214 43/100

Mathematics
2 answers:
kkurt [141]3 years ago
8 0
The answer is 166 67/ 100
Bas_tet [7]3 years ago
7 0
381 1/10- 214 43/100= 166 67/100
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Circle 1 is centered at (5, 8) and has a radius of 8 centimeters. Circle 2 is centered at (1, −2) and has a radius of 4 centimet
Masja [62]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilation's) can be found that map one figure onto another.  

In this problem to prove circle 1 and circle 2 are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that

Circle 1 is centered at (5,8) and has a radius of 8 centimeters

Circle 2 is centered at (1,-2) and has a radius of 4 centimeters

step 1

Move the center of the circle 1 onto the center of the circle 2

the transformation has the following rule

(x,y)--------> (x-4,y-10)

so

(5,8)------> (5-4,8-10)-----> (1,-2)

center circle 1 is now equal to center circle 2  

The circles are now concentric (they have the same center)

step 2

A dilation is needed to decrease the size of circle 1 to coincide with circle 2

scale factor=radius circle 2/radius circle 1-----> 4/8----> 0.5

radius circle 1 will be=8*scale factor-----> 8*0.5-----> 4 cm

radius circle 1 is now equal to radius circle 2  

therefore

A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

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3 years ago
Which operation should you perform first when you simplify the expression below?
aalyn [17]

Answer:

A pq eu já não sei mas vou na A! não sei falar inglês, meu irmão leu, mas acho que não leu direito, eu chuto na A

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2 years ago
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Indicate the equation of the given line in standard form, writing the answer below.
scZoUnD [109]

Answer: y-\frac{11}{2}=6(x-2)

Step-by-step explanation:

For it to bisect the segment, we need to find the midpoint.

The midpoint is \left(\frac{-1+5}{2}, \frac{6+5}{2} \right)=\left(2, \frac{11}{2} \right).

Now, for it to be perpendicular, we need to use the fact that perpendicular lines have slopes that are negative reciprocals of each other.

The slope of the given segment is \frac{6-5}{-1-5}=-\frac{1}{6}, so the slope of the perpendicular bisector is 6.

Thus, the equation of the line in point-slope form is \boxed{y-\frac{11}{2}=6(x-2)}

4 0
2 years ago
X/3=-19<br> What is the value of x
Molodets [167]
<h3>I'll teach you how solve X/3=-19</h3>

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X/3=-19

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3x/3= 3(-19)

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plz mark me as brainliest :)

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Consider the circle shown with center O and points A , B , C , and D on the circle.
leva [86]

Answer:

the answer is c

Step-by-step explanation:

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