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fredd [130]
3 years ago
6

Exercises

Geography
1 answer:
lukranit [14]3 years ago
3 0

Answer:

Explanation:

Hammer- inclined plane

door knob- wheel and axle

chisel- inclined plane

screwdriver- inclined plane

hatchet- inclined plane

seesaw- lever

slide- inclined plane

broom- lever

bicycle- wheel and axle

shovel- inclined plane

Hope this helps :)

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Find the coordinates of the midpoint of HX
marta [7]

Answer:

M(29, -12)

Explanation:

Given:

H(4\frac{1}{2}, -3\frac{1}{4}), X(2\frac{3}{4}, -2\frac{3}{4})

Required:

Coordinates of the Midpoint of HX

Solution:

Midpoint (M) of HX, for H(4\frac{1}{2}, -3\frac{1}{4}), X(2\frac{3}{4}, -2\frac{3}{4}) is given as

M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}).

Let H(4\frac{1}{2}, -3\frac{1}{4}) = (x_1, y_1)

X(2\frac{3}{4}, -2\frac{3}{4}) = (x_2, y_2)

Thus:

M(\frac{4\frac{1}{2} + 2\frac{3}{4}}{2}, \frac{-3\frac{1}{4} + (-2\frac{3}{4})}{2})

Convert to improper fractions

M(\frac{\frac{9}{2} + \frac{11}{4}}{2}, \frac{-\frac{13}{4} + (-\frac{11}{4})}{2})

M(\frac{\frac{18 + 11}{2}}{2}, \frac{\frac{-13 - 11}{4}}{2})

M(\frac{\frac{29}{2}}{2}, \frac{\frac{-24}{4}}{2})

M(\frac{29}{2}*2, \frac{-24}{4}*2

M(29, -12)

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<em>hope this helps. :)</em>

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#SaveTheTrees

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