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irina [24]
3 years ago
12

How do you solve this step by step?

Mathematics
1 answer:
mestny [16]3 years ago
8 0

Answer:

x = 9

Step-by-step explanation:

3x - 5x + 8x = 4x + 18

- 2x + 8x = 4x + 18

6x = 4x + 18

2x = 18

x = 9

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Write and equivalent exponential expression for "five to the third power"
Alinara [238K]

Answer:

<h3>5^3</h3>

Step-by-step explanation:

There should be a regular 5 with a little three to the top right corner of the 5.

6 0
3 years ago
Please answer both parts, will give first answer brainliest
S_A_V [24]

Answer:#1- 3.0 in. #2- 11.0 in.

Step-by-step explanation:

5 0
3 years ago
Solving Quadratic Equations with Complex SolutionsThe discriminant: D=b^2-4acQuestion:5x^2-2x+1=0
fomenos

• The value of the discriminant ,D= -16

,

• The solution to the quadratic equation is

x=\frac{1+2i}{5}\text{     or    }\frac{1-2i}{5}

Step - by - Step Explanation

What to find?

• The discriminant d= b² - 4ac

,

• The solution to the quadratic equation.

Given:

5x² - 2x + 1=0

Comparing the given equation with the general form of the quadratic equation ax² + bx + c=0

a=5 b=-2 and c=1

Uisng the quadratic formula to solve;

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

The discriminant D=b² - 4ac

Substitute the values into the discriminant formula and simplify.

D = (-2)² - 4(5)(1)

D = 4 - 20

D = -16

We can now proceed to find the solution of the quadratic equation by substituting into the quadratic formula;

x=\frac{-(-2)\pm\sqrt[]{-16}}{2(5)}

Note that:

√-1 = i

x=\frac{2\pm\sqrt[]{16\times-1}}{10}

x=\frac{2\pm\sqrt[]{16}\times\sqrt[]{-1}}{10}x=\frac{2\pm4i}{10}x=\frac{2}{10}\pm\frac{4i}{10}x=\frac{1}{5}\pm\frac{2}{5}ix=\frac{1\pm2i}{5}

That is;

\text{Either x=}\frac{1+2i}{5}\text{ or     x=}\frac{1-2i}{5}

7 0
1 year ago
7. The height of each story of an apartment
ivanzaharov [21]
How many stories does it have?
3 0
3 years ago
Read 2 more answers
This is my question! ​
tatuchka [14]

Answer:

J

Step-by-step explanation:

mode = 56

mean = 37.4

median = 35

6 0
3 years ago
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