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2 years ago

What is the value of 0.5^2 + (3/5)^2 please say the answer quickly

Mathematics

1 answer:

vodka [1.7K]2 years ago

3 0

Answer:

0.61

Step-by-step explanation:

(5/10)^2+(3/5)^2

(25/100)+(9/25)

25/100 + 9*4/25*4

25/100 + 36/100

61/100

0.61

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Answer + explaination

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2 years ago

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3 years ago

A mailbox that is 36 inches tall is beside a tree.The length of the mailboxes shadow is 28 inches.The length of the trees shadow

mixer [17]

Answer:

10.5 feet

Step-by-step explanation:

In this problem, we have two similar triangles:

- One consists of the mailbox, its shadow and the hypothenuse

- The other one consists of the tree, its shadow and the hypothenuse

The two triangles are similar, so they have same proportions between their sides: therefore, we can apply the rule of three:

$\frac{m}{s_m}=\frac{t}{s_t}$

where

m = 36 in is the height of the mailbox

$s_m=28 in$ is the shadow of the mailbox

t is the height of the tree

$s_t=98 in$ is the length of the shadow of the tree

Solving for t, we find the height of the tree:

$t=\frac{m\cdot s_t}{s_m}=\frac{(36)(98)}{28}=126 in$

And since

1 feet = 12 inches

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$t=\frac{126}{12}=10.5 ft$

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3 years ago