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Tanya [424]
3 years ago
5

What is the x-coordinate of the solution to the following system of equations?

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0

Answer:

X=2

Step-by-step explanation:

X-2y=2

(3x+y=6) x 2

6x+2y=12

(X-2y=2) + (6x+2y=12)

7x=14

x=2

Alja [10]3 years ago
4 0

Answer:

The correct answer is x=2

Step-by-step explanation:

I took the test and it was right. Thank me.

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Consider the inequality -20.2 > 0y. Which of the following must be true? Check all that apply. You cannot divide by zero. The
Katarina [22]

Answer:

You can not divide by zero.

The inequality is equivalent to - 20.2 > 0 which is false.

Step-by-step explanation:

We can not divide both sides by zero, because if we divide both sides by zero, then the inequality becomes

- \frac{20.2}{0} > y

⇒ - ∞ > y, which is not possible.

Again, the given inequality is - 20.2 > 0 × y.

We have to multiply y with zero and a product of zero with any term is also zero.

Hence, the inequality becomes - 20.2 > 0.

Therefore, the inequality is equivalent to - 20.2 > 0 which is false. (Answer)

4 0
3 years ago
Read 2 more answers
Hello, Brainly community!
ioda

Answer:

(B)  \displaystyle \frac{W(3.1) - W(2.9)}{0.2}

General Formulas and Concepts:

<u>Calculus</u>

Limits

Derivatives

  • The definition of a derivative is the slope of the tangent line.

Derivative Notation

Instantaneous Rates

  • Tangent Line: \displaystyle f'(x) = \frac{f(b) - f(a)}{b - a}

Step-by-step explanation:

Since we are trying to find a <em>rate</em> at which W(t) changes, we must find the <em>derivative</em> at <em>t</em> = 3.

We are given 2 close answer choices that would have the same <em>numerical</em> answer but different <em>meanings</em>:

  1. (A)  \displaystyle  \lim_{t \to 3} W(t)
  2. (B)  \displaystyle \frac{W(3.1) - W(2.9)}{0.2}

If we look at answer choice (A), we see that our units would simply just be volume. It would not have the units of a rate of change. Yes, it may be the closest numerically correct answer, but it does not tell us the <em>rate</em> at which the volume would be changing and it is not a derivative.

If we look at answer choice (B), we see that our units would be cm³/s, and that is most certainly a rate of change. Answer choice (B) is also a <em>derivative</em> at <em>t</em> = 3, and a derivative tells us what <em>rate</em> something is changing.

∴ Answer choice (B) will give us the best estimate for the value of the instantaneous rate of change of W(t) when <em>t</em> = 3.

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

Book: College Calculus 10e

8 0
3 years ago
WILL GIVE BRAINLIEST​ HELP ASAP
Ksivusya [100]

Answer:

1, 2, 3

Step-by-step explanation:

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3 years ago
Please help quick!!
Yanka [14]
An inverse statement is negating both statements meaning if not p, then not q.
So transforming this to an inverse statement would be:
<span>If two out of five people don’t use the subway every day, then the probability of a person using the subway isn’t 0.4. So the answer B.</span>
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A support wire is strung from a tree. The bottom of the wire is 24 ft from the tree. The length of the wire is 30 ft. Find each
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<span>This is the term used to describe economic systems in which the basic economic questions are answered based on a socially, pre-established way.</span>
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