Find all solutions to the equation.

Semenov [28]

Answer: 90

Step-by-step explanation:

$\displaystyle\ \Large \boldsymbol{} (\sqrt{0,04}-\sqrt{(-1,2)^2}+\sqrt{121 } ) \cdot \sqrt{81} = \\\\\\(0,2-1,2+11)\cdot 9=(11-1)\cdot 9=90$

6 0

3 years ago

Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?

AlexFokin [52]

An expression which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula is: expression A. Therefore, the correct answer option is A.

<h3>What is a quadratic equation?</h3>

A quadratic equation can be defined as a mathematical expression (equation) that can be used to define and represent the relationship that exists between two or more variable on a graph. In Mathematics, the standard form of a quadratic equation is given by;

ax² + bx + c = 0

Mathematically, the quadratic formula is modeled or represented by this mathematical expression:

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

From the information provided, we have the following values;

0 = -3x² - 2x + 6

Where:

a = -3

b = -2

c = 6

Substituting the values into the quadratic formula, we have;

$x = \frac{-(-2)\; \pm \;\sqrt{(-2)^2 - 4(-3)(6)}}{2(-3)}\\\\x = \frac{2\; \pm \;\sqrt{4^2 - 4(-3)(6)}}{2(-3)}$

Read more on quadratic equation here: brainly.com/question/4053652

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4 0

1 year ago

If the measure of angle 1 the measure of angle 2 = 180 and the measure of angle 3 the measure of angle 2 = 180 then the measure

Vitek1552 [10]

If the degree measure of two complementary angles are in the ratio of 1:14, ... These are similar to complementary angles, except their sum is 180 degrees. ... 1 = angle 3, (because they are vertical angles), then the measure of angle 3 = y - 5.

3 0

3 years ago

A linear equation with an infinite number of solutions is called?

svlad2 [7]

Systems of Linear Equations with Infinitely Many Solutions

5 0

4 years ago

The price of a notebook was $3.70 yesterday. Today, the price fell to $3.20 . Find the percentage decrease. Round your answer to

mario62 [17]

Answer:

13.5% Decrease

Step-by-step explanation:

Use formula (change in value / original value) * 100

Change in value = 3.70 - 3.20 =0.50 Change in value is 0.50

Original Value = 3.70

Use the formula (0.50/3.70) * 100 = 13.5 % Decrease

6 0

3 years ago