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Sagot :
Sure, let's solve this step by step.
We are given the points [tex]\( Q \)[/tex] and [tex]\( S \)[/tex] on a number line:
[tex]\[ Q = -14 \][/tex]
[tex]\[ S = 2 \][/tex]
The ratio in which point [tex]\( R \)[/tex] partitions the segment is given as [tex]\( 3:5 \)[/tex], so [tex]\( m = 3 \)[/tex] and [tex]\( n = 5 \)[/tex].
We need to use the formula:
[tex]\[ \left(\frac{m}{m+n}\right) (x_2 - x_1) + x_1 \][/tex]
where:
- [tex]\( x_1 = Q = -14 \)[/tex]
- [tex]\( x_2 = S = 2 \)[/tex]
- [tex]\( m = 3 \)[/tex]
- [tex]\( n = 5 \)[/tex]
Substitute the given values into the formula:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
First, compute the denominator in the fraction:
[tex]\[ 3 + 5 = 8 \][/tex]
Next, compute the difference inside the parentheses:
[tex]\[ 2 - (-14) = 2 + 14 = 16 \][/tex]
Substitute these values back into the formula:
[tex]\[ \left(\frac{3}{8}\right) \cdot 16 + (-14) \][/tex]
Now, perform the multiplication:
[tex]\[ \frac{3}{8} \cdot 16 = 6 \][/tex]
Finally, add this value to [tex]\(-14\)[/tex]:
[tex]\[ 6 + (-14) = -8 \][/tex]
Thus, the correct expression is:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
So, the answer is:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
Hence, the correct expression using the formula is:
[tex]\[ \left(\frac{3}{3+5}\right) (2-(-14)) + (-14) \][/tex]
And the expression simplifies to:
[tex]\[ -8 \][/tex]
Therefore, the correct answer from the given options is:
[tex]\[ \left(\frac{3}{3+5}\right)(2-(-14))+(-14) \][/tex]
We are given the points [tex]\( Q \)[/tex] and [tex]\( S \)[/tex] on a number line:
[tex]\[ Q = -14 \][/tex]
[tex]\[ S = 2 \][/tex]
The ratio in which point [tex]\( R \)[/tex] partitions the segment is given as [tex]\( 3:5 \)[/tex], so [tex]\( m = 3 \)[/tex] and [tex]\( n = 5 \)[/tex].
We need to use the formula:
[tex]\[ \left(\frac{m}{m+n}\right) (x_2 - x_1) + x_1 \][/tex]
where:
- [tex]\( x_1 = Q = -14 \)[/tex]
- [tex]\( x_2 = S = 2 \)[/tex]
- [tex]\( m = 3 \)[/tex]
- [tex]\( n = 5 \)[/tex]
Substitute the given values into the formula:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
First, compute the denominator in the fraction:
[tex]\[ 3 + 5 = 8 \][/tex]
Next, compute the difference inside the parentheses:
[tex]\[ 2 - (-14) = 2 + 14 = 16 \][/tex]
Substitute these values back into the formula:
[tex]\[ \left(\frac{3}{8}\right) \cdot 16 + (-14) \][/tex]
Now, perform the multiplication:
[tex]\[ \frac{3}{8} \cdot 16 = 6 \][/tex]
Finally, add this value to [tex]\(-14\)[/tex]:
[tex]\[ 6 + (-14) = -8 \][/tex]
Thus, the correct expression is:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
So, the answer is:
[tex]\[ \left(\frac{3}{3+5}\right) (2 - (-14)) + (-14) \][/tex]
Hence, the correct expression using the formula is:
[tex]\[ \left(\frac{3}{3+5}\right) (2-(-14)) + (-14) \][/tex]
And the expression simplifies to:
[tex]\[ -8 \][/tex]
Therefore, the correct answer from the given options is:
[tex]\[ \left(\frac{3}{3+5}\right)(2-(-14))+(-14) \][/tex]
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