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3 years ago

Given the trinomial 5x^2 - 2x- 3 predict the type of solutions

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

Answer:

One rational solution

Step-by-step explanation:

proof

5x2 - 2x - 3=0, the sum of coefficients is 5-2-3=0, so the equation has exactly two solutions, x=1, and x = -3/5 this last is the one rational solution

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An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at le

hoa [83]

Answer:

0.999

Step-by-step explanation:

At least 1 correct means, 1 correct, 2 correct, 3 correct ... until 10 correct. That would be a long process to calculate.

Instead we use the complement rule to calculate.

$P(x\geq1)=1-P(x$

So we need to find P(x<1). So this is getting 0 answers correct, or 10 incorrect.

In true false question, probablity of correct is 1/2 and incorrect is 1/2, hence,

Probability of 10 incorrect is (1/2)^10

Thus,

$P(x\geq1)=1-(\frac{1}{2})^{10}=0.999$

So the answer is 0.999 (rounded to nearest thousandth)

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3 years ago

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babunello [35]

Answer:

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Step-by-step explanation:

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3 years ago

The mk family ochard has 120 apple trees and 90 pear trees.if each fruit tree produces an average of 590 pounds of fruit per yea

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If there’s a total of 210 fruit trees, and each tree produces 590 pounds a year, you multiply both those numbers and get 123,900 pounds a year.

6 0

3 years ago

Simplify -3x^2-5x^2(4x^3-x^2)2

PSYCHO15rus [73]

Let's simplify step-by-step.

−3x2−5x2(4x3−x2)(2)

Distribute:

=−3x2+−40x5+10x4

Answer:

=−40x5+10x4−3x2

8 0

3 years ago

Estimate the quotient: 0.233 ÷ 0.047 ASAP this is my lats question pls help

zlopas [31]

Answer:

Hey buddy, here is your answer. Hope it helps you.

Step-by-step explanation:

4.957 something is the answer

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2 years ago