Answer:
31
Step-by-step explanation:
Given
x² + 5x - 3 = 0
with a = 1, b = 5, c= - 3 , then
sum of roots x₁ + x₂ = -
= -
= - 5
product of roots =
=
= - 3
Now
(x₁ + x₂)² = x₁² + 2x₁x₂ + x₂² , that is
(- 5)² = x₁² + 2(- 3) + x₂²
25 = x₁² - 6 + x₂² ( add 6 to both sides ), then
x₁² + x₂² = 31
Answer: im a adult
\
Step-by-step explanation:
Average rate of the function: 3
Step-by-step explanation:
The function in this problem is

The average rate of change of a function over an interval
is given by

where
are the values of the function calculated in
respectively
For the function in this problem we have:
, so

, so

So, the average rate of change is

Learn more about rate of change:
brainly.com/question/4152194
brainly.com/question/12941985
#LearnwithBrainly
The answer is B, because GK is half the distance of FD by proportions
The expressions are:
- (5x² - 6)/ 2
- 5x² - 18/2
- 5x² -6 /2
<h3 /><h3>What is expression?</h3>
A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
- An absolute numerical number is referred to as a constant.
- Variable: A symbol without a set value is referred to as a variable.
- Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.
- Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.
Given:
15 x squared minus 18 end quantity over 6.
= 15x² - 18 / 6
= 3(5x² - 6)/ 6
= (5x² - 6)/ 2
and, 5 x squared minus 18 end quantity over 2
= 5x² - 18/2
and, 5 x squared minus 6 end quantity over 2
= 5x² -6 /2
Learn more about expression here:
brainly.com/question/16804733
#SPJ1