Evaluate the following expression. "12 more than 5"

Mathematics

1 answer:

GalinKa [24]3 years ago

4 0

Answer:

Step-by-step explanation:

12+5

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Place these numbers in correct order and and simplify 25x^2 +6x^3 -7 +17 -24x^4 +6

Ket [755]

Answer:

$-24x^4+6x^3+25x^2+16$

Step 1:

We need to place the numbers in descending order of the power. Here, $-24x^4$ has the largest power, so that number goes first. We keep doing this until we end up with our final expression, placed in order based on the powers.

$-24x^4+6x^3+25x^2+17-7+6$

Step 2:

We can see that the last three numbers, 17, -7, and 6, don't have variables or powers, so we simplify by adding (and subtracting) them.

$17-7=10\\10+6=16$

Our final equation:

$-24x^4+6x^3+25x^2+16$

3 0

3 years ago

1. Draw the graph of f(x) = cos x for 0 I know how to construct the graph but I don’t know how to get the figures. Please help

KengaRu [80]

Answer:

Please refer to the attached figure.

Step-by-step explanation:

Given the function:

$f(x) =cosx \ where\ \{0^\circ\leq x\leq 360^\circ\}$

OR, the given function can also be written as:

$y = f(x) = cosx$

We know that graph of cosine is a wave.

and the range of cosine function is [-1, 1]

First of all, let us have a table of values at major values of x.

$x = 0, f(x) = 1\\x = 90, f(x) = 0\\x = 180, f(x) = -1\\x = 270, f(x) = 0\\x = 360, f(x) = 1$

So, the table of values for f(x) is:

$\begin{center}\begin{tabular}{ c c }x & cosx \\0 & 1 \\90 & 0\\180 & -1\\270 & 0\\360 & 1\\\end{tabular}\end{center}$

Let us mark these points on the xy coordinate axis where x axis represents value of<em> x </em>and y axis represents value of $f(x) = cosx$ and then join the points using a wave.