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3 years ago

11

Find the surface area of the cylinder pictured. Use 3.14 for pi.

2 answers:

kirill115 [55]3 years ago

5 0

Theres no picture..

AnnZ [28]3 years ago

3 0

It’s A=2πrh+2πr2 I hope this really helped you but if somebody reading THIS CAN THEY HELP ME ALSO IM STRUGGLING

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Solve the equations 1. 16x^2-1=0 2. 36z^2 96z 15=0

Allisa [31]

$16x^2-1=0 2$

$16x^2-1=0 2:x$

$
16x^2=1
 
$ $|Add \ 1 \ to \ both \ sides|$

$x^2= \dfrac{1}{16}$ $|Divide \ both \ sides \ by \ 16|$ <span>
</span>
$x^2= \sqrt{\dfrac{ \sqrt{1}}{ \sqrt{16}}}$ $|Take \ the \ square \ root \ of \ both \ sides|$

$x= \dfrac{1}{4}$

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3 years ago

How r u doing?? 1-10:D? (free pts btw)

erik [133]

Answer: i am good,how are you?

Step-by-step explanation:

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3 years ago

Two honey tangerines cost $1.40 how many tangerines can you buy for 4.20<br>

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3 years ago

Read 2 more answers

Elsa's magic wand can cast 53 spells. Her wand can cast 17fewer spells than her sister Anna's wand, which is a little bigger and

Mademuasel [1]

Answer:

<em> Anna's wand can cast 70 spells</em>

<em></em>

Step-by-step explanation:

Elsa's wand can cast 53 spells

her wand casts 17 fewer cells than her sister Anna's

Amount of spells cast by Anna's wand = ?

We write the question down in the form of an equation

$x - 17 = 53$

where $x$ is the amount of spells Anna's wand can cast.

we then proceed to solve by collecting like terms to different sides of the equation. We'll have

$x = 53 + 17$

which leaves us with

$x = 70$

This means that<em> Anna's wand can cast 70 spells.</em>

4 0

4 years ago

Show that log√7 + log√20 - log√14 = 1/2

Mademuasel [1]

Alright, lets get started.

$log \sqrt{7} + log \sqrt{20} - log\sqrt{14} = \frac{1}{2}$

We could write this square root as $\frac{1}{2}$

$log7^{\frac{1}{2}} + log20^{\frac{1}{2}}- log14^{\frac{1}{2}}$

Using the property of $logm^{n } = n log (m)$

$\frac{1}{2}log 7 + \frac{1}{2} log 20 - \frac{1}{2} log14$

$\frac{1}{2}$ is common in each term, so

$\frac{1}{2}(log7 + log 20 - log 14)$

Using property of $log m + log n = log(mn)$

$\frac{1}{2}(log 140 - log 14)$

Using property of $log m - log n = log\frac{m}{n}$

$\frac{1}{2}log\frac{140}{14}$

$\frac{1}{2} log 10$

log 10 value is 1 , hence

$\frac{1}{2} * 1 = \frac{1}{2}$ : Answer

Hope it will help :)

6 0

3 years ago