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3 years ago

What is the sum of the interior angles of a 28-gon? s = (n-2) 180

Mathematics

1 answer:

zimovet [89]3 years ago

3 0

Answer:

1,00090

Step-by-step explanation:

You might be interested in

1) 5k = 27 Solve equation and proportion

Rzqust [24]

Answer:

k = 27/5

Step-by-step explanation:

Divide 5 on bot sides

5k/5 = 27/5

k= 27/5

so, k = 27/5 OR 5.4

3 0

3 years ago

Someone explain this step by step to me 1/2(c-8)=

polet [3.4K]

Answer: c/2-4

Step-by-step explanation:

This is what I get :

1/2(c-8)

Distributed property

1/2(c) + 1/2(-8)

Do c and -8 as a fraction with denominator 1 solve across

1/2×c/1+1/2×-8/1

Here you can only divide -8by 2

C/2-8/2

To get -4

C/2-4

You can't go further

4 0

3 years ago

Differentiate Vx(x + 2) with respect to x.

Travka [436]

Answer:

$y'= \frac{3x+2}{2\sqrt{x} }$

General Formulas and Concepts:

Calculus

The derivative of a constant is equal to 0

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Product Rule: $\frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)$

Chain Rule: $\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Step-by-step explanation:

Step 1: Define

$y=\sqrt{x} (x+2)$

Step 2: Rewrite

$y=x^{\frac{1}{2} } (x+2)$

Step 3: Differentiate

Product Rule [Basic Power/Chain Rule]: $y'= \frac{1}{2} x^{\frac{1}{2} -1}(x+2)+x^{\frac{1}{2} }(1)$
Simplify: $y'= \frac{1}{2} x^{\frac{-1}{2}}(x+2)+x^{\frac{1}{2}}$
Rewrite: $y'= \frac{x+2}{2\sqrt{x} } + \sqrt{x}$
Add: $y'= \frac{3x+2}{2\sqrt{x} }$

7 0

3 years ago

Which of the following statement is true?

Tatiana [17]

3/12 is the same as 3/12

4 0

3 years ago

Wire electrical-discharge machining (WEDM) is a process used to manufacture conductive hard metal components. It uses a continuo

algol13

Answer:

a. no, there are no sufficient data to use

b. assumption b is right

Step-by-step explanation:

a. for the standard deviation to be calculated at 99% confidence, the data needed should be the mean (given), the variate value to be calculated for(not given), the standard deviation(not given), the z value of the normal distribution ( not given),

since there are too many unknown, the data given are not sufficient to calculate.

b. validity of this interval requires that coating layer thickness be at least approximately normally distributed.

6 0

4 years ago