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3 years ago

12

A totem pole casts a 20 meter shadow when the angle of elevation of the sum is 45what is the distance from the top of the totem

pole to the end of the shadow

1 answer:

abruzzese [7]3 years ago

8 0

Answer:

20√2 meters (approximately 28.28 m)

Step-by-step explanation:

It may help to make a diagram. Because this is a 45 45 90 triangle, you can use those rules to help solve.

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The mean of five numbers is 8. when another number is added the mean is 7. find the number added

sasho [114]

Answer:

$\large \boxed{\sf \ \ 2 \ \ }$

Step-by-step explanation:

Hello,

<u>The mean of five numbers is 8</u> so we can write

$\dfrac{x_1+x_2+x_3+x_4+x_5}{5}=8$

<u>When another number is added the mean is 7</u>, let s note x the another number we can write

$\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7$

From the first equation we can say

$x_1+x_2+x_3+x_4+x_5=8*5=40$

So the second equation becomes

$\dfrac{x_1+x_2+x_3+x_4+x_5+x}{6}=7\\\\ \dfrac{40+x}{6}=7\\\\40 + x = 6*7=42\\\\ x = 42-40 = 2\\$

The solution is then 2

Hope this helps

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Answer:

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3 years ago

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A pizza parlor sold 38 pizzas during a dinner hour. If each pizza contained 8 slices, how many slices of pizza were sold?

AlladinOne [14]

38 x 8 = 304
So the answer is b

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Cuanto es 90 x 90 entre 50?

Sladkaya [172]

Tu respuesta Es 162

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3 years ago

Find the sum of 10 and the difference between 8 and 3

Bess [88]

Answer:

15

Step-by-step explanation:

10+(8-3)=15

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2 years ago