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3 years ago

What is the product? 2x(x-4) O 2x2-4 O 2x2-8 O 2x2 - 4x O 2x2-8x

Mathematics

1 answer:

kherson [118]3 years ago

4 0

Answer:

the answer would be 2x^2-4x

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morpeh [17]

$\bf 3\sqrt{2}-\sqrt{50}+3-\sqrt{8}+\sqrt{288}-\sqrt{9}~~ \begin{cases} 50=2\cdot 5\cdot 5\\ \qquad 2\cdot 5^2\\ 8=2\cdot 2\cdot 2\\ \qquad 2^2\cdot 2\\ 288=2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 3\cdot 3\\ \qquad 2^4\cdot 2\cdot 3^2\\ \qquad 2 (2^2)^2 3^2\\ \qquad 2(2^2 3)^2\\ \qquad 2(12)^2\\ 9=3^2 \end{cases}$

$\bf 3\sqrt{2}-\sqrt{2\cdot 5^2}+3-\sqrt{2^2\cdot 2}+\sqrt{2\cdot 12^2}-\sqrt{3^2} \\\\\\ 3\sqrt{2}-5\sqrt{2}+3-2\sqrt{2}+12\sqrt{2}-3 \\\\\\ 3\sqrt{2}-5\sqrt{2}-2\sqrt{2}+12\sqrt{2}+3-3\implies \stackrel{\textit{adding like-terms}}{8\sqrt{2}}$

7 0

3 years ago

One group (A) contains 615 people. Three-fifths of the people in group A will be selected to win $50 fuel cards. There is anothe

mezya [45]

The answer is 246:157.

Step by Step:

Group A:

First, figure out 1/5 of the people in group A. ( 615/5 = 123 )

Find 2/5 ( the amount of people who lost ) ( 123*2 = 246 )

Group B:

They received the same amount of fuel cards, so you take 526 - 369 ( 3/5 of the last group, or the winners, which is the amount of cards they received ) = 157.

7 0

3 years ago

In a laboratory, 3 technicians are analyzing the active ingredient in the product vials. Amir, Betty, and Carlos analyze 0.55, 0

AlladinOne [14]

Answer:

The probability is $P(C | I) = 0.025$

Step-by-step explanation:

From the question we are told that

The proportion analyzed by Amir is P(A) = 0.55

The proportion analyzed by Betty is P(B) = 0.30

The proportion analyzed by Carlos is P(C) = 0.15

The inaccuracy by Amir is p = 0.6% = 0.006

The inaccuracy by Betty is b = 0.4% = 0.004

The inaccuracy by Carlos is c = 0.1% = 0.001

Generally the probability of inaccurate analysis is mathematically represented as

$P(I) = P(A) * p + P(B) * b + P(C) * c$

=> $P(I) = 0.55 * 0.006 + 0.30 * 0.004 + 0.15 * 0.001$

=> $P(I) = 0.006$

Generally the probability that an inaccurate analysis, detected at final verification, was conducted by Carlos is mathematically represented as

$P(C | I ) = \frac{P(C) * c}{P(I)}$

=> $P(C | I) = \frac{ 0.15 * 0.001}{ 0.006}$

=> $P(C | I) = 0.025$

3 0

4 years ago

How do we find x and y intercepts

IRISSAK [1]

Answer:

To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y. ...

To find the x-intercept, set y = 0 \displaystyle y=0 y=0.

To find the y-intercept, set x = 0 \displaystyle x=0 x=0.

5 0

3 years ago

Help me find this out :( I’m lost can u type out the answer btw

salantis [7]

total cost per call.

I am not sure. though

6 0

3 years ago