Answer:
x = 2 and x = -2
Step-by-step explanation:
The easiest way is to guess. We know that you can't have a square root of a negative number. This constrains x between negative infinity to 2. Testing 2 and -2, we see that it satisfy the equation.
The more systematic approach is shown below
x= -2, 2
Answer:
782
Step-by-step explanation:
You have to multiplied 23 and 34
23 X 34 = 782
The equation of the line is y=2x-3.
It is required to find the equation of the line.
<h3>What is straight line?</h3>
A straight line is just a line with no curves .The general equation of a straight line is y = mx + c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis. The equation of a straight line with gradient m and intercept c on the y-axis is y = mx + c.
Given:
The slope-intercept form of a line is
y = mx +c
where c is the intercept and m is the slope.
According to given question we have,
slope =2
y - intercept=-3
The equation of the line
y=2x-3
Therefore, the equation of the line is y=2x-3.
Learn more about straight line here:
brainly.com/question/27560536
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Answer:
12.5 in^2
Step-by-step explanation:
25=2(3.14)r
25=6.28r
Divide by 6.28 on both sides:
3.98089172=r
Now use 
:
12.5 in^2
Answer:
126
Step-by-step explanation:
9 ÷ 20 = 0.45
280 × 0.45 = 126
