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3 years ago

8

A computer is on sale and is marked down 30% off regular price. After 13% tax, you pay $355.95. Calculate the regular price of t

he computer.

1 answer:

lorasvet [3.4K]3 years ago

7 0

Answer:

you need to use the before change and after method

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Answers from anybody please???

Nezavi [6.7K]

The side length is 2/√3 times the apothem length, so is 10 cm. The area is that of 6 triangles, each with base 10 cm and height 5√3 cm.

.. 6*(1/2)*(10 cm)*(5√3 cm) = 150√3 cm^2
.. ≈ 259.8 cm^2

7 0

3 years ago

Choose the kinds of symmetry the following figure has: point, line, plane, or none.

algol [13]

<h3>Answer: Choice A) None</h3>

Explanation:

Can we rotate the figure some angle smaller than 360 degrees and have it match up with its original image? The answer to that is "no". Any such rotation will change the image to something else. Therefore, this figure does not have any point symmetry (aka rotational symmetry).

Can we reflect one half of the figure over some line to get the other half? The answer here is also "no". The diagram has no reflectional symmetry either.

Plane symmetry is ruled out because that only applies to 3D settings.

4 0

2 years ago

Find a solution of the quadratic equation.6x squared + 7x + 2 =0

worty [1.4K]

Given the equation:

$6x^2+7x+2=0$

We will use the following rule to find the solution to the equation:

$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

From the given equation: a = 6, b = 7, c = 2

So,

$\begin{gathered} x=\frac{-7\pm\sqrt[]{7^2-4\cdot6\cdot2}}{2\cdot6}=\frac{-7\pm\sqrt[]{1}}{12}=\frac{-7\pm1}{12} \\ x=\frac{-7-1}{12}=-\frac{8}{12}=-\frac{2}{3} \\ or,x=\frac{-7+1}{12}=-\frac{6}{12}=-\frac{1}{2} \end{gathered}$

So, the answer will be option B) x = -1/2, -2/3

5 0

1 year ago

Solve using quadratic formula<br> 5x^2-4x+3=0

Semenov [28]

Answer:

Impossible

Step-by-step explanation:

In 5x^2-4x+3=0, standard form, substitute these values in the quadratic formula:

a = 5; b = -4; c = 3

The quadratic formula is $x = \frac{ -b ± \sqrt{b^{2} - 4ac}}{2a}$

(ignore the weird capital A)

Substitute a b and c:

$x = \frac{-(-4) ± \sqrt{(-4)^{2} - 4(5)(3)}}{2(5)}$

Simplify:

$x = \frac{4) ± \sqrt{16 - 60}}{10}$

Because $\sqrt{16-60}$ is the square root of a negative number, the answer would be imaginary.

Therefore, there are not solutions to this equation.

A solution is the same as the roots or zeroes, where the graph would cross the x-axis when graphed.

The graph never meets the x-axis. It looks like this:

3 0

3 years ago

Write a definition and give an example of the Commutative Property of Addition using decimal numbers.

konstantin123 [22]

Numbers that can easily be added to each other
Ex. 1.00 + 1.00 Is obviously 2.00 meaning its not hard to solve

5 0

4 years ago