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Leni [432]
3 years ago
11

Find the product.........................

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0

Answer:

B


Step-by-step explanation:


<u>To find the answer, you have to </u><u>multiply each term of the first parenthesis' expression with each term in the next parenthesis' expression.</u><u> Then </u><u>combine like terms</u><u>.</u> So we have:


(6x^2-6x-5)(7x^2+6x-5)\\=(6x^2)(7x^2)+(6x^2)(6x)+(6x^2)(-5)+(-6x)(7x^2)+(-6x)(6x)+(-6x)(-5)+(-5)(7x^2)+(-5)(6x)+(-5)(-5)\\=42x^4+36x^3-30x^2-42x^3-36x^2+30x-35x^2-30x+25\\=42x^4-6x^3-101x^2+25


Answer choice B is right.

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nika2105 [10]

<u>Given</u>:

Given that the length of the two legs of the right triangle are 28 m and 45 m.

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<u>Length of the hypotenuse:</u>

The length of the hypotenuse can be determined using the Pythagorean theorem.

Thus, we have;

hyp^2=28^2+45^2

Simplifying, we get;

hyp^2=784+2025

hyp^2=2809

Taking square root on both sides, we get;

hyp=\sqrt{2809}

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Thus, the length of the hypotenuse is 53 m

Hence, Option C is the correct answer.

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3 years ago
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Answer:

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Step-by-step explanation:

The corresponding sides are in the same proportion so:

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5 0
3 years ago
In a parallel circuit, ET = 120 V, R = 30 Ω, and XL = 40 Ω. What is IR?
soldi70 [24.7K]

Answer:


Step-by-step explanation:

Given

ET = 120 V

, R = 30 Ω,

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as in circuit inductor and resistor are parallel so ET =EL = ER = 120V

IR = current through resistor = IR = ER/ R

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Answer:

2

Step-by-step explanation:

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zhannawk [14.2K]

Answer:

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Step-by-step explanation:

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In this case:

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Which equals:

m=-9/3

Divide and you get -3.

5 0
3 years ago
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