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2 years ago

Solve 2x^+8=0 by graphing the related function

Mathematics

2 answers:

garri49 [273]2 years ago

7 0

Answer:

No real solution.

Step-by-step explanation:

Please find the attachment.

We have been given a function $2x^2+8=0$ . We are asked to find the solution for our given function by graphing method.

We can see that our given function is an upward parabola. We know that solution of parabola is points, where graph intersects x-axis.

We can see from our attachment that our given function never intersects x-axis, therefore, there is no real solution for our given function.

posledela2 years ago

5 0

You cannot solve this equation by graphing because there are no real solutions.

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A store makes a profit of $15 on a wallet, after a mark up of 60%, what is the selling priceof the wallet?

Ivenika [448]

Answer:

Markup: $9 ; Selling Price: $24

Step-by-step explanation:

The store makes a profit of $15, to find the mark up of 60%, multiply 15 x 60%.

15 x 0.6 = 9

Add the markup price to the original price.

9 + 15 = $24

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2 years ago

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2 years ago

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QveST [7]

Answer:

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Step-by-step explanation:

The slope formula is as shown:

$m=\frac{y_{2} -y_{1} }{x_{2} -x_{1}}$

We can have A = ( $x_{1}$ , $y_{1}$ ) and B = ( $x_{2}$ , $y_{2}$ ).

We can hence plug in the values into the formula to get $m=\frac{3-(-2)}{-5-3}$ .

As we simplify, the negatives on the top row cancel out to give us an addition sign instead and we add them.

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2 years ago

The measure of an interior angle of a regular polygon is 120°. What is the measure of each exterior angle? The polygon has how m

Sunny_sXe [5.5K]

Answer:

60°, arms 6

Step-by-step explanation:

let the total arms = n

total generated angles in a regular polygon is = (n-2)×180

now,

(n-2)×180 = 120 n

or, 180n - 360 =120n

or, 60n = 360

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1 year ago

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dezoksy [38]

Answer:

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