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3 years ago

What is the first step in solving the quadratic equation x2 - 40 = 0?

Mathematics

1 answer:

andrezito [222]3 years ago

7 0

Answer:

subtracting 40 from both sides of the equation

Step-by-step explanation:

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Write 821 in scientific notation

igomit [66]

Answer:

8.21 x 102

Step-by-step explanation:

cus thats the answer

6 0

3 years ago

A. How far is the spot on the beach from the parking lot?

Afina-wow [57]

The altitude of the right triangle is the geometric mean of the 2 parts of the side it separates.

a. The answer would be sqrt(18*32)=24

The question to the second question can be answered by using the Pythagorean theorem.

32^2+24^2=1600=40^2

b. The answer would be sqrt40^2=40

7 0

3 years ago

Which phrase best describes the translation from the graph y = 6x2 to the graph of y = 6(x + 1)2?

solmaris [256]

The statement which best describes the translation from the graph y= 6x² to the graph of y = 6(x+1)² is; The translation represents a unit shift rightward.

<h3>Which phrase best describes the translation from the graph?</h3>

The translation involved in the transformation of the graph as given in the task content represents a rightward shift of the graph y = 6x² by 1 unit.

On this note, it follows that the translation involved between the two graphs is; a unit shift to the right.

Read more on translations in graphs;

brainly.com/question/27894131

#SPJ1

3 0

2 years ago

Is ΔP'Q'R' a 180° rotation about the origin of ΔPQR? Use the drop-down menus to explain your answer.

skelet666 [1.2K]

Answer: No, it isn't.

Step-by-step explanation: This graph shows a Translation, meaning the figure moved. Yes, the rotation of the second figure is 180 degrees, but it was also Translated downwards 2 points down and one to the right.

4 0

2 years ago

Read 2 more answers

Given a polynomial function f(x) = 2x2 – 3x + 5 and an exponential function g(x) = 2% – 5, what key features do f(x) and g(x) ha

prohojiy [21]

A. Both $f(x)$ and $g(x)$ have the <em>same</em> domain of $(9, +\infty)$ .

<h3>How to analyze similarities in two functions</h3>

In this question we must analyze the domain, range, x-intercepts and <em>increase</em> intervals:

<h3>Domain</h3>

$Dom \{f(x)\} = \mathbb{R}$

$Dom \{g(x)\} = \mathbb{R}$

Both functions are <em>continuous</em>.

<h3>Range</h3>

$Ran \left\{f(x)\right\} = (3.875, +\infty)$

$Ran \{g(x)\} = (-5, +\infty)$

<h3>x-Intercepts</h3>

$f(x):$ $(x,y) = \emptyset$

$g(x):$ $(x,y) = (2.322, 0)$

<h3>Increase intervals</h3>

$f(x):$ According to the graph, $f(x)$ increase over the interval of $(3.875, + \infty)$ .

$g(x) :$ According to the graph, $g(x)$ increase over the interval of $\mathbb{R}$

After a quick analysis, we conclude that option A offer the best approximation to characteristics of both functions. $\blacksquare$

<h3>Remark</h3>

The statement presents mistakes and is poorly formatted. Correct form is:

<em>Given a polynomial function </em> $f(x) = 2\cdot x^{2}-3\cdot x + 5$ <em> and an exponential function </em> $g(x) = 2^{x}-5$ <em>. What key features do </em> $f(x)$ <em> and </em> $g(x)$ <em> have in common? </em>

<em />

<em>A.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same domain of </em> $(9, +\infty)$ <em>.</em>

<em>B.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same range of </em> $(-\infty, 0]$ <em>.</em>

<em>C.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same x-intercept of </em> $(2,0)$ <em>.</em>

<em>D.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> increase over the interval of </em> $(-4, +\infty)$ <em>.</em>

<em />

To learn more on functions, we kindly invite to check this verified question: brainly.com/question/5245372

4 0

2 years ago