Karen wants to measure the height of the streetlight outside her house. She places a mirror on the ground 52

Mathematics

1 answer:

Mariana [72]3 years ago

5 0

Yeiehebei web e ddhsiwbw e did e

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Describe the motion in the graph below.

Wittaler [7]

It goes straight sideways

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4 years ago

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Fill in the blanks to rewrite the following statement with variables: Given any positive real number, there is a positive real n

sveticcg [70]

Answer:

a) there is s such that r>s and s is positive

b) For any r>0 , there exists s>0 such that s<r

Step-by-step explanation:

a) We are given a positive real number r. We need to wite that there is a positive real number that is smaller. Call that number s. Then r>s (this is equivalent to s<r, s is smaller than r) and s is positive (or s>0 if you prefer). We fill in the blanks using the bold words.

b) The last part claims that s<r, that is, s is smaller than r. We know that this must happen for all posirive real numbers r, that is, for any r>0, there is some positive s such that s<r. In other words, there exists s>0 such that s<r.

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3 years ago

An artist wants to make alabaster pyramids using a block of alabaster with a volume of 576 cubic inches. She plans to make each

8_murik_8 [283]

Volume of pyramid:

$V= \dfrac{1}{3} \cdot A \cdot H$

A - base area
H - height

First count volume of one pyramid:

$V=\dfrac{1}{3} \cdot 3 \cdot 4=4 [\hbox{inch}^3]$

So by using 576 inch^3 you can make 576 : 4 = 144 pyramids

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4 years ago

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Factorise (x-y)^2-(x-y)^3=?

bogdanovich [222]

Answer:

$\left(x-y\right)^2\left(1-x+y\right)$