Answer:
x= -3/16
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
D. 21.
Step-by-step explanation:
The general form of the equation of a circle is:
(x - a)^2 + (y - b)^2 = r^2 where r is the radius.
Comparing:
(x + 5)^2 + (y + 7)^2 = 21^2
So r^2 = 21^2
making r = √21^2
= 21.
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80%, 1000-200 = 800/1000 or 80%
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➷ Put -2 everywhere you see x:
f(-2) = 5(-2)
f(-2) = -10
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The value of 'k' in the quadratic Equation having one rational solution is k is 8.
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What is a Quadratic Equation?</h3>
- Quadratic equations are the polynomial equations of degree 2 in one variable of the type where a, b, c, ∈ R and a ≠ 0.
- The standard form of a quadratic equation is .
Here, the given equation is
By comparing the given equation with the standard form of the quadratic equation we get,
a = 4
b = k
c = 4
The given quadratic is having one rational solution, which means
Therefore,
Therefore, the value of k is 8.
Learn more about the quadratic equation is brainly.com/question/8649555
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