Answer:
x = 132
Step-by-step explanation:
In a parallelogram,adjacent angles add to 180
Opposite angles are equal
Answer:
<h3>x = 5</h3>
Step-by-step explanation:
f(x) = 2(x + 6)
f(x) = 22
thereofre we have the equation:
2(x + 6) = 22 <em>use distributive property</em>
2x + 12 = 22 <em>subtract 12 from both sides</em>
2x = 10 <em>divide both sides by 2</em>
x = 5
To find out the number of real solutions, we use something called "the discriminant". This is usually given the symbol "<span>Δ", pronounced "delta"
</span><span> Δ = b^2 - 4ac, where a is the x^2 coefficient, b is the x coefficient and c is the integer
</span>
When Δ = 0, there is one real solution, when Δ < 0, there are no real solutions, and when Δ > 0, there are 2 real solutions
So, substituting the values in, we get:
Δ = (20)^2 - 4(-4)(-25) = 0
Therefore, there is one real solution to the polynomial given.
Don't hesitate to ask further questions!
Hope I helped!! xx
Answer:
[-3, 0] is the answer
because substituting every x in function yields that
1. y=6
2. y=-12
Step-by-step explanation:
<u>1) If y varies inversely as x, and y=3 as x = -2, find y for the x value of -1.</u>
It is given that
y varies inversely as x
IT will be written as:
y∝1/x
Removing the proportionality symbol
y=k/x
Given
y=3 , x=-2
Putting the values
3=k/-2
k=3*-2 = -6
The equation will be:
y=-6/x
So,
When x=-1
<u>2) If y varies directly as x, and y=15 as x=-3, find y for the x value of 4</u>
y is directly proportional to x
y∝x
y=kx
Given
y=15, x=-3
Putting the values
Hence,
1. y=6
2. y=-12
Keywords: Proportion, Variation
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