All categories

3 years ago

Surface area of cylinders

Mathematics

1 answer:

marta [7]3 years ago

7 0

$\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=11\\ h=11 \end{cases}\implies SA=2\pi (11)(11+11) \\\\\\ SA=22\pi (22)\implies \boxed{SA=484\pi} \\\\\\ \begin{cases} r=12\\ h=8 \end{cases}\implies SA=2\pi (8)(8+12)\implies SA=16\pi (20)\implies \boxed{SA=320\pi }$

You might be interested in

What is the answer to 8÷544

Stells [14]

8 ÷ 544 = 0.0147058824, 544 ÷ 8 = 68

3 0

4 years ago

A company earns a profit of $100 the first month it is in business. Every month after that, the company earns a profit that is 1

ryzh [129]

Answer:

506.25

Step-by-step explanation:

Month 1: $100

Month 2: 100 times 1.5 = 150

Month 3: 150 times 1.5 = 225

Month 4: 225 times 1.5 = 337.50

Month 5: 337.50 times 1.5 = 506.25

6 0

4 years ago

Solving Exponential and Logarithmic Equations In Exercise, solve for x.<br> 4e2x - 3 - 5 = 0

Deffense [45]

Answer:

Value of x will be 0.1515

Step-by-step explanation:

We have given the equation $4e^{2x}-3-5=0$

We have top fond the value of x using exponent and logarithmic property

So $4e^{2x}-3-5=0$

$4e^{2x}-8=0$

$4e^{2x}=8$

$e^{2x}=2$

Taking log both side

$lne^{2x}=ln2$

$2x=0.3010$

x = 0.1515

4 0

3 years ago

Robert, a ninth-grader, has just been told, "The reason you’re having so much trouble with division is that you have never maste

Brums [2.3K]

Answer:

Diagnostic

Step-by-step explanation:

The teacher made a diagnostic decision relative to Roberts skill level. Before she made this decision, she first started with the process of evaluation to know his strength and also establish his weakness. With the knowledge she has gotten she now plans to him with meaningful learning and an efficient curriculum that would help him in mastering multiplication first before division.

7 0

3 years ago

Find the missing side lengths. Answers are in simplest radical form with the denominator rationalized

Roman55 [17]

Answer:

Option B.

Step-by-step explanation:

The given triangle is a right angle triangle.

In a right angle triangle,

$\tan \theta=\dfrac{Perpendicular}{Base}$