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Margarita [4]
3 years ago
11

What 'a the answer to this

Mathematics
1 answer:
Margaret [11]3 years ago
6 0
X equals 53/11 , y equals -16/11
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Rationalize the denominator.
AlekseyPX

Hello and Good Morning/Afternoon!

<u>Let's take this problem step-by-step</u>:

<u>What the problem asks for:</u>

  ⇒ to rationalize the denominator

      ⇒ rationalize means that you multiply the numerator and

          demonimator by the denominator

<u>Let's put that into action</u>:

    \frac{\sqrt{a +1}-2 }{\sqrt{a+1}+2 } * \frac{\sqrt{a +1}+2 }{\sqrt{a+1}+2 }\\=\frac{a +1-4 }{a+1+4\sqrt{a+1}+4  } \\=\frac{a-3}{a+4\sqrt{a+1}+5 }<== <u>Answer</u>

<u></u>

Hopefully that helps!

4 0
2 years ago
Solve the proportion x/6=12/9
Nastasia [14]
Multiply by 6 and simplify
.. x = 6*12/9 = 72/9 = 8

x = 8
8 0
3 years ago
Read 2 more answers
Write an equation of a line that passes through the point (8,4) and is parallel to the y=4x+2
fomenos

Answer: y=4x-28

Step-by-step explanation:

The Slope-intercept form of the equation of the line is:

y=mx+b

m: is the slope.

b: the intersection of the line with the y-axis.

The equation of the line y=4x+2 has:

m=4\\b=2

If both lines are parallel, then their slopes are equal. So the slope of the other line is:

m=4

To find "b", substitute the given point and the slope into ]y=mx+b and solve for "b":

4=4(8)+b\\4-32=b\\b=-28

Then the equation of this line is:

y=4x-28

6 0
4 years ago
The third term of an arithmetic sequence is 21, and the eighth term is 56. The first term is _____.
aleksley [76]
The first term is 7. This is because the sequence has a pattern of increasing by 7. If the first term was 7, the second would be 14, the third would be 21. The 4th would be 28, continue to the 8th term 56.
5 0
3 years ago
Not sure need help ​
WITCHER [35]

Answer:

the circumference is 31.4159 (or 31.42)

5 0
3 years ago
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