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Nadusha1986 [10]
3 years ago
11

Two circles that have exactly two common tangents:

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

So... What's the question?!

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Anybody know the answer??
bogdanovich [222]

Answer:

The answer is 5

Step-by-step explanation:

2x+7=17

2x=10

x=5

If u have more questions just ask

Brainliest Please

5 0
3 years ago
5.
sleet_krkn [62]

Answer:

D. The graphs are the same shape but have different y-intercepts.

Step-by-step explanation:

3 0
2 years ago
Give the ellipse 9x² + 16y2 = 144, find the equation of the diameter which bisects the chord with slope 1/2​
Genrish500 [490]

The equation of the diameter which bisects the chord with slope 1/2 is

y=-\frac{9}{8} x

The general form of the equation of given ellipse is  ax^2+by^2=c and equation of chord will be y=mx+n for some m and n.

Now in order to find values of x that intercept the ellipse it must fulfill the equation as such;

ax^2+b(mx+n)^2=c

(a+bm^2)x^2+2bmnx+bn^2 - c=0

<h3 /><h3>What is the definition of an ellipse?</h3>

It is a plane section curve whose sum from two fixed points will be a constant value.

Quadratic roots will give the mid value of x and value of y will be ;

X=\frac{-b}{2a} =\frac{-bmn}{a+bm^2}

Y=n-\frac{bm^2n}{a+bm^2} =\frac{an}{a+bm^2}

Thus the final equation of required diameter will be :

y=\frac{Y}{X} x=-\frac{a}{bm} x

And in this case the equation of the diameter which bisects the chord with slope 1/2 is,

y=-\frac{9}{8} x

Learn more from here quadratic equations,

brainly.com/question/14281133

# SPJ1

5 0
1 year ago
when two fractions refer to the same whole and have the same denominators explain why you can compare only the numerators​
Mars2501 [29]

Answer:

If the two fractions simplify to fractions with a common denominator, you can then compare numerators. If the denominators are different, you can find a common denominator first and then compare the numerators. Two fractions are equivalent fractions when they represent the same part of a whole.

Hope This Helps!    Have A Nice Day!!

7 0
3 years ago
steph buys 12 bananas for $2 each. she also buys 7 sandwiches that are twice as much. the store has a $2 off sale on the sandwic
hram777 [196]
(12 x 2) + (7 x 4) - 2 would be the expression 
first you multiply the 12 x 2 and the 7 x 4, you add those together and then you subtract two from your total answer.
meaning your answer would be 50 

4 0
3 years ago
Read 2 more answers
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