One zero of f(x)=x^3-2x^2-5x+6 is 1 what are other zeros of the function
Answers
Answer:
The other zeros are -2 and 3.
Step-by-step explanation:
As 1 is a zero then (x - 1) is a factor so we divide:
x - 1 )x^3-2x^2-5x+6(x^2-x-6
x^3-x^2
-x^2-5x
-x^2+x
-6x+6
-6x+6
...........
x^2 - x - 6 = 0
(x - 3)(x + 2)
x = -2, 3.
Answer:
-2 and 3
Step-by-step explanation:
Given one zero of f(x)=x^3-2x^2-5x+6 to be 1 this means that x-1 is a factor of the polynomial x³-2x²-5x+6
Before we can get the other two factors. We need to divide the polynomial function by x-1 and factorize the resulting quotient as shown in the attachment.
Quotient Q(x) = x²-x-6
Factorizing this function
x²-3x+2x-6 = 0
x(x-3)+2(x-3) = 0
(x+2)(x-3) = 0
x+2 = 0 and x-3 = 0
x = -2 and x= 3
Therefore the other zeros of the function are -2 and 3
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only 6 of the 75 trees in the park are at leat 30 feet tall. what percent of the trees are over 30 feet?
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First, since the fractions carry the same denominator (luckily), we can easier combine the first two fractions, resulting in having to add the numerators.
Second, our next step is to multiply both sides by 7. Our goal is to get the variable (x) by itself on one side of the problem, so we have to do everything on the other side.
Third, let's simplify 4/7 × 7. To do so, we multiply the whole number by the numerator. Basically, 7 × 4 = 28.
Fourth, we can now simplify 28/7. To do this, we can ask ourselves, what can multiply into 7 to equal 28? 7 ÷ 28 = (4), so 4 is our answer for this.
Fifth, we can continue doing everything on one side. We will need to subtract 5 from each side.
Sixth, let's simplify 4 - 5, which is easily -1. Our problem will look like 3x = -1, but we have one more step to do. Our last step is to divide each side by 3. This will create a fraction. Our fraction will be negative because we carried our -1 over.
Answer in fraction form:
Answer in decimal form:
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I hoped i help :)
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Answer:
Proceed the next step, then. Whether it is sum/subtract the addends, whether it is subtract. Then isolate the variable, aiming to find out the quantity of x.
Step-by-step explanation:
If an equation whose product does not need the distributive property, then the factors have already been distributed. And
Visualizing it
Suppose the following equation:
Now let's focus the following step, that point of the question, when the equation does not need the distibutive property:
3x +6=4
3x+6 -6=4-6
3x=-2
3x/3=-2/3
x=-2/3
S={-2/3}
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9/10 is less than 1.
10/9 is more than 1. So it must be more than 9/10.
9/10 is equal to .9
10/9 is greater