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Sladkaya [172]
3 years ago
7

What are the zeros of the function f(x) = 2 + 8x + 4, expressed in simplest radical form?

Mathematics
1 answer:
Yanka [14]3 years ago
3 0
-8x=2+4 x=-4+43, I think -8x moved to left and solve that, its simple.
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What is the equation of the polynomial function?
dolphi86 [110]

Answer:

f(x) = (1/2)(x-2)^2(x+1)(x+2)

Step-by-step explanation:

You can determine this by looking at the zeroes of the graph. For any zero that goes through the x-axis, the power of that zero is odd. For any zero that that "bounces" from the x-axis, the power of that zero is even.

Starting from left to right, we can see that the first zero, -2, goes through the x-axis. That means (x+2) is raised to an odd power. The second zero, -1, also goes through, so (x+1) is raised to an odd power. The last zero, 2, bounces off the x-axis, so (x-2) is raised to an even power. The only functions that satisfy this criteria are function 1 and 2.

However, we are not done yet. We need to figure out which multiplier value (1/2, 1/4) is correct. To do this, we plug in 0 for x, since we know that the y-intercept is 4. When we plug in 0, we see that f(0) = 4 for the first function. Therefore, the first function is the answer.

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7 0
3 years ago
Solve x (give answer as fractions or integers). 2^x =1/2​
Rudik [331]

Answer:

x = -1

Step-by-step explanation:

When an exponent is negative, you have to move it to the denominator (or to the numerator if it's already on the denominator). Since the answer is \frac{1}{2}, you know that the 2 has been raised to the power of 1 (any number to the power of 1 is the same number), so you just make it negative. Hope that helps!

7 0
3 years ago
PLESSS PLESS PLESSSSSSS I BEG OF YOU TEACH ME HOW TO DO THISSSS I BEGG I WILL GIVE BRAINYLIST TO ANYONE WHO ANSWERS PLESS I CRY
serious [3.7K]

Answer:

okey i will help you bexause?

3 0
2 years ago
A box has a volume of 546cm3 and a surface area of 422cm2. What are the Length, Width and Height?
Klio2033 [76]
We know that the formula for the volume of a box is:

V =lwh

Where:
l = length
w = width
h = height

The formula of the surface area of a box is:
SA=2(lw+lh+wh)

Based on the given we know the following:
546cm^{3} =lwh

and

422cm^{2}=2(lw+lh+wh)

If we factor out the given volume, you can come up with 3 numbers that will satisfy the surface area formula:

546=6*7*13

Let:
l = 6cm
w = 7cm
h = 13cm
     
Now let's try this on the surface area formula:
422cm^{2}=2(lw+lh+wh)
422cm^{2}=2((6cm*7cm)+(6cm*13cm)+(7cm*13cm))
422cm^{2}=2(42cm^{2}+79cm^{2}+91cm^{2})
422cm^{2}=2(211cm^{2})
422cm^{2}=422cm^{2}

The answer is then:
l = 6cm
w = 7cm
h = 13cm

Any order would be fine.
4 0
3 years ago
please solve this question
____ [38]
A, c, and e are the correct answers
3 0
3 years ago
Read 2 more answers
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