What is statement #4??? I’ll give best answer brainliest!!

Mathematics

1 answer:

VashaNatasha [74]3 years ago

4 0

Ummm I don’t know sorry I’ll come back to help you answer it

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What is the discriminant of the polynomial 4x^2 - 20 x + 25 ?

Zarrin [17]

Hello from MrBillDoesMath!

Answer:

Discussion:

For the quadratic ax^2 + b^x + c, the discriminant is b^2 - 4ac. In our case, the discriminant is

(-20)^2 - 4 (4)(25) =

400 - 4 (100) =

(This means the polynomial has a duplicate root. In fact it factors as (2x-5)^2 ).

Thank you,

MrB

3 0

3 years ago

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Simplify where possible 3a - 4a 6a

Damm [24]

The answer is 5a. 3a- 4a is -1 then you add -1 and 6, and your outcome comes out to be 5a.

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3 years ago

Calculate 5% of 800. Please show working out with steps

Sauron [17]

Answer:

5% of 800 is 40.

Step-by-step explanation:

5 percent * 800 =

(5:100)* 800 =

(5* 800):100 =

4000:100 = 40

plz mark as brainliest

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3 years ago

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Which inequality would result in the shaded solution on the unit circle to the right?

omeli [17]

<h3>Answer: Choice B</h3>

Explanation:

Cosine is positive in quadrants I and IV, but quadrant IV isn't shaded in so we can rule out choice A.

Sine is positive in quadrants I and II. So far it looks like choice B could work. In fact, it's the answer because sin(pi/6) = 1/2 and sin(5pi/6) = 1/2. So if 0 ≤ sin(x) < 1/2, then we'd shade the region between theta = 0 and theta = pi/6; as well as the region from theta = 5pi/6 to theta = pi.

Choice C is ruled out because tangent is positive in quadrants I and III, but quadrant III isn't shaded.

Choice D is ruled out for similar reasoning as choice A. Recall that $\sec(x) = \frac{1}{\cos(x)}$