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3 years ago

Can someone help me please ?

Mathematics

1 answer:

Katarina [22]3 years ago

3 0

Answer: you can always write a square root, cubic root, etc... As an exponent.

Step-by-step explanation:

A) y^1/2

B) (y+6)^1/5 - 3

Exercise 4

A) 49^1/2 = square root of 49

(Dont have the square symbol y my phone. Lol!)

Always remember... You can write:

A^x/y = y root of A^x

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The scale of a map is 5 inch = 40 miles. If 2 cities are 15 inches apart on the map, how

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3 years ago

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3 years ago

15. The height and yolume of a cylinder are 4cm and 616cm respectively. Calculate the diameter of the base. (take t = 27 쪽 A. 7c

irakobra [83]

Step-by-step explanation:

Given that,

Height of cylinder = 4 cm
Volume of cylinder = 616 cm³

To find,

Diameter of the base = ?

Firstly we'll find the base radius of the cylinder.

$\longmapsto\rm{V_{(Cylinder)} = \pi r^2h}\\$

According to the question,

$\longmapsto\rm{616= \dfrac{22}{7} \times r^2 \times 4}\\$

$\longmapsto\rm{616 \times 7 = 22 \times r^2 \times 4}\\$

$\longmapsto\rm{4312 = 88 \times r^2 }\\$

$\longmapsto\rm{\cancel{\dfrac{4312}{88}} = r^2 }\\$

$\longmapsto\rm{49 = r^2 }\\$

$\longmapsto\rm{\sqrt{49} = r }\\$

$\longmapsto\rm{7 \; cm = r }\\$

Now,

$\longmapsto\rm{Diameter = 2r }\\$

$\longmapsto\rm{Diameter = 2(7 \; cm) }\\$

$\longmapsto\bf{Diameter = 14 \; cm}\\$

The required answer is 14 cm.

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3 years ago