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2 years ago

(–23) – 45 – (–98) = ?

Mathematics

2 answers:

lisabon 2012 [21]2 years ago

6 0

(–23) – 45 – (–98) =–23 – 45 +98=-68+98=30

Liula [17]2 years ago

5 0

Answer:

Step-by-step explanation:

(–23) – 45 – (–98)

According to PEMDAS, we do addition and subtraction from left to right

-23 -45 = -68

-68 - (-98)

Subtracting a negative is like adding a positive

-68+ 98 = 30

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(-3x)-7+2x+9=5 what does X equal to

yKpoI14uk [10]

Answer:

Step-by-step explanation:

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3 years ago

Find the coordinates of point X that lies along the directed line segment from Y(-8, 8) to T(-15, -13) and partitions the segmen

Nataly_w [17]

Answer:

C. (-13, -7)

Step-by-step explanation:

The location of a point O(x, y) that divides a line AB with location A $(x_1,y_1)$ and B $(x_2,y_2)$ in the ratio m:n is given by:

$x=\frac{m}{m+n} (x_2-x_1)+x_1\\\\y=\frac{m}{m+n} (y_2-y_1)+y_1$

Therefore the coordinates of point X That divides line segment from Y(-8, 8) to T(-15, -13) in the ratio 5:2 is:

$x=\frac{5}{5+2} (-15-(-8))+(-8)\\\\x=\frac{5}{7} (-15+8)-8=\frac{5}{7}(-7)-8=-5-8=-13 \\\\\\y=\frac{5}{5+2} (-13-8)+8\\\\y=\frac{5}{7} (-21)+8=5(-3)+8=-15+8=-7$

Therefore the coordinates of point X is at (-13, -7)

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2 years ago