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djverab [1.8K]
3 years ago
6

Evaluate x3 for x = 2. a.2 b.6 c.8

Mathematics
1 answer:
Zanzabum3 years ago
3 0

X^3

Replace X with 2:

2^3

2^3 = 2 x 2 x 2 = 8


The answer is C.

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Nonamiya [84]

Answer:

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Step-by-step explanation:

<h2><u>IdEnTiTy UsED</u></h2>

{x}^{2}  -  {y}^{2}  = (x + y)(x - y)

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(x  -  5)(x - 5)

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3 years ago
Simplify the expression (9 + 2i)(9 − 2i).<br><br> 81 − 18i<br> 81 + 18i<br> 77<br> 85
Ymorist [56]

Answer:

=85

Step-by-step explanation:

I'm pretty sure I'm correct

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3 years ago
Try It for Example 3: Is 3.14144144414444... a rational number? Explain your reasoning. *
chubhunter [2.5K]

it's irrational

A rational number can be put over a fraction, while this number continues forever

5 0
3 years ago
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Hi . I'm kinda stuck on this question . <br>Help please. <br>Workings please​
Gre4nikov [31]

Answer:

\large \boxed{\text{Q31, D. 6.00 F; 32. C. N21.75; Q33. A. 168.00 F}}

Step-by-step explanation:

Your graph is hard to read, so I re-drew it as best I could.

You must first develop an equation relating francs and naira.

The line goes through the origin, so the general equation is

y = kx

One of the points is (40,240).

\begin{array}{rcl}F & = &k \times N\\240 & = &k \times 40\\k & = & \dfrac{240}{40}\\\\k&=&\textbf{6 F/N}\\\end{array}\\\text{The equation is $\large \boxed{\mathtbf{F = 6 N}}$}

Q 31.

\begin{array}{rcl}F & = &6N\\& = & 6 \times 1.00\\& = & \mathbf{6.00}\end{array}\\\text{The equivalent value of N1.00 is $\large \boxed{\textbf{6.00 F}}$}

Q 32.

\begin{array}{rcl}F & = &6N\\130.5& = & 6 N\\N&=& \dfrac{130.5}{6}\\\\& = & \mathbf{21.75}\\\end{array}\\\text{The equivalent value of 130.5 F is $\large \boxed{\textbf{N21.75}}$}

Q 33.

\begin{array}{rcl}F & = &6N\\& = & 6 \times 28.00\\& = & \mathbf{168.00}\end{array}\\\text{An amount of N28.00 is $\large \boxed{\textbf{168.00 F}}$}

6 0
2 years ago
A painter made the table below to show the amount of paint it takes to cover a certain amount of square feet. The amount of pain
Sliva [168]

Answer:

Option A.

Step-by-step explanation:

The table made by the painter shows the amount of paint required to cover a certain amount of area of the wall.

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As we know when proportionality sign is removed, a constant known as proportionality constant is multiplied with the variable.

So y = k(x) where k is the proportionality constant

Now from the table to cover the area of 64 square feet, 4 pints of paint is required.

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x = \frac{4}{64}=\frac{1}{16}

Now we have to calculate the amount of paint required to cover the area of 256 square feet.

y = \frac{1}{16}\times 256

y = 16 pints

Therefore, 16 pints of the paint will be required to cover 256 square feet.

Option A is correct.

4 0
2 years ago
Read 2 more answers
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