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zalisa [80]
3 years ago
10

The formula d = ft can be used to calculate the distance (d) an object travels using its rate of speed (r) and the time it trave

ls (t). Using the formula, which shows the rate the object traveled?
Mathematics
1 answer:
yuradex [85]3 years ago
7 0
In that first sentence, you should have typed d = r * t
Rate would be calculated as:
rate = distance / time

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Answer:

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Step-by-step explanation:

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<h2>Question:</h2>

Find k if (x+1) is a factor of 2x³ + kx² + 1

<h2>Answer:</h2>

k = 1

<h2>Step-by-step explanation:</h2>

The factor of a polynomial F(x) is another polynomial that divides evenly into F(x). For example, x + 3 is a factor of the polynomial x² - 9.

<em>This is because;</em>

i. x² - 9 can be written as (x - 3)(x + 3) which shows that both (x - 3) and (x + 3) are factors.

ii. If x = -3 is substituted into the polynomial x² - 9, the result gives zero. i.e

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=> (9) - 9 = 0

Therefore, if (x + a) is a factor of a polynomial, substituting x = -a into the polynomial should result to zero. This also means that, if x - a is a factor of a polynomial, substituting x = a into the polynomial should give zero.

<em><u>From the question</u></em>

Given polynomial: 2x³ + kx² + 1

Given factor: x + 1.

Since x + 1 is a factor of the polynomial, substituting x = -1 into the polynomial should give zero and from there we can calculate the value of k. i.e

2(-1)³ + k(-1)² + 1 = 0

2(-1) + k(1) + 1 = 0

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k = 1

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Step-by-step explanation:

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<span>Premise 1: If a polygon was translated to the right, then its image is congruent to its pre-image.

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In symbols: q => r

By the law of silogism

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