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3 years ago

What is the final price of a product that costs $14.30 with an added tax rate of 4%?

Mathematics

1 answer:

LenKa [72]3 years ago

8 0

Change 4% into a decimal (.04)

14.30 x .04 = .57

Add the tax to product

14.30 + .57 = 14.87

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What is the first step in solving the equation x2 - 25 = 0?

Finger [1]

Answer:

first step - make x² the subject of the formula

x² = 25

second step :

find the square root of both sides

√x² = √25

x = 5

Step-by-step explanation:

5 0

3 years ago

Help please! <br><br> Geometry R.10 Solve a right triangle

Len [333]

That is a 30 60 90 triangle
The "short" side (DE) equals the middle side (FE) times (1 / sq rt(3))
short side = 8 * sqrt(3) * (1 / sq rt(3) = 8
Hypotenuse (DF) is 2 times the short side which equals 16.

Source:
http://www.1728.org/trig2.htm

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3 years ago

aev [14]

Answer:

See attachment.

a) y = -x + 2

b) (2,1)

Step-by-step explanation:

Explained in the attachment.

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3 years ago

Writing prompt about math

Nookie1986 [14]

Answer:

y=(3x+4)(x+2)

Step-by-step explanation:

Once you distibute everything you will get:

3x^2

which will give you your intitialequation: y=3x^2+10x+8.

The first equation you put can not be fcatored.

7 0

3 years ago

What is the solution to this system of equations? x 2 y = 4. 2 x minus 2 y = 5. (3, Negative 5 and one-half) (3, one-half) no so

Talja [164]

The solution of the equation is (3, 1/2).

<h2>We have to determine</h2>

What is the solution to this system of equations?

<h3>According to the question</h3>

The given system of the equation;

$\rm x+2y=4\\
\\
2x-2y=5$

<h3>The standard form for linear equations in two variables is;</h3>

$\rm Ax+By = C$

On comparing equation 1 and equation 2 with the standard form we get,

$\rm a_1 = 1,\ b_1 = 2,\ c_1=4\\
\\
a_2=2, \ b_2=-2, \ c_1 = 5$

Here,

$\rm \dfrac{a_1}{a_2} = \dfrac{1}{2}\\
\\
\dfrac{b_1}{b_2} = \dfrac{-2}{2} = -1\\
\\
\dfrac{a_1}{a_2} \neq \dfrac{b_1}{b_2}$

Here, $\rm \dfrac{a_1}{a_2} \neq \dfrac{b_1}{b_2}$ so, the given system of equations has a unique solution.

Then,

The solution of the equation is;

$\rm x+2y=4\\\\2x-2y=5$

On adding both the equation;

$\rm x+2y+2x-2y=4+5\\
\\
3x=9\\
\\
x = \dfrac{9}{3}\\
\\
x = 3$

Substitute the value of x in equation 1,

$\rm x+2y=4\\
\\
3+2y = 4\\
\\
2y = 4-3\\
\\
2y=1\\
\\
y =\dfrac{1}{2}$

Hence, the solution of the equation is (3, 1/2).

To know more about System of Equation click the link given below.

brainly.com/question/1568892

7 0

2 years ago

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