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3 years ago

3. Determine whether f(x) = -5x2- 10x + 6 has a maximum or a minimum

Mathematics

1 answer:

Sati [7]3 years ago

6 0

-2(2+5x) because -5x2-10x+6 = -10-10x+6=-4-10x which equals the answer which is -2(2+5x)

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The value in Canadian dollars of the money in Merl's bank account goes down because it takes .14 more Yuan to make 1 Canadian dollar.

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3 years ago

According to police sources, a car with a certain protection system will be recovered 87% of the time. Find the probability that

WITCHER [35]

Answer: 0.01145

Step-by-step explanation:

We use Binomial distribution , where the probability of getting x successes in n trial is given by :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , p = probability of getting each success in each trial.

As per given

The proportion that a car with a certain protection system will be recovered= p=0.87

n= 8

Let x be the number of cars will be recovered.

Then, the probability that 4 of 8 stolen cars will be recovered:

$P(X=4)=^8C_4(0.87)^4(1-0.87)^{8-4}$

$=\dfrac{8!}{4!(8-4)!}(0.87)^4(0.13)^4\\\\= 70(0.57289761)(0.00028561)\\\\=0.0114537700474\approx0.01145$

Hence, the required probability is 0.01145.

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3 years ago

14. Determine whether x3 is O(g(x)) for each of these functions g(x). a) g(x) = x2 b) g(x) = x3 c) g(x) = x2 + x3 d) g(x) = x2 +

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Answer:

Answer and explanation with steps are in the following attachments

Step-by-step explanation:

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3 years ago

If P = (-2,7), Find:<br> Ry-axis (P)<br> ([?], [])

kumpel [21]

Answer:

(2, 7)

Step-by-step explanation:

$R_{\text{y-axis}}(\text{P})$ represents the reflection of a point P about the y-axis.

If a point (x, y) is reflected across y-axis, rule for the reflection is,

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If a point (-2, 7) follows the same rule, coordinates of the image point will be,

P(-2, 7) → P'(2, 7)

Therefore, answer is (2, 7).

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3 years ago

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here you are the answer.

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11 months ago