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frozen [14]
3 years ago
10

3x² + (4x – x) + 7 – (2x – 1) Which expression is equivalent to this

Mathematics
1 answer:
Airida [17]3 years ago
6 0

Answer:

3x² + x + 8

Step-by-step explanation:

3x² + (4x - x) + 7 - (2x - 1)

Solve what's inside the parenthesis first.

3x² + 3x + 7 - 2x + 1

Combine like terms.

3x² + x + 8

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ludmilkaskok [199]

32.3 is a decimal number in which 3 is the digit at the tenth place.

Mixed number contains a whole number and a fraction part.

32.3 expressed as mixed fraction is 32\frac{3}{10} , here 32 is the whole number  and \frac{3}{10} is the fraction part.

\frac{3}{10} is the fraction in the simplest form.

For this reason, 32.3 expressed as a mixed number in the simplest form is 32\frac{3}{10}.

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Any complex number can be put into the form a+bi, where a and b are real numbers. (True and False).
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Lilit [14]

Step-by-step explanation:

Very quick and effortless example of vertical angles in the attached image. When 2 straight lines intersect, the 2 angles opposite each other at that point are vertical angles, and they are always congruent.

I'd say it's the 3rd option:

"Vertical angles are a pair of non-adjacent angles formed by two intersecting lines."

but any of the first three could be technically true really. Adjacent angles are 2 angles that share a side, and vertical angles cannot share one.

8 0
3 years ago
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Lana71 [14]

Answer:

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Step-by-step explanation:

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ln(t - 1) + ln(x²) = ln[(t-1)x²] = 6

Take the natural antilogarithm of each side

(t - 1)x² = e⁶

Divide each side by t - 1

x² = e⁶/(t-1)

Take the square root of each side

x = ±e³/√(t - 1)

x ≈ ±20.086/√(t - 1)

6 0
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svetlana [45]

Answer:

There are only two roots of a quadratic.

Step-by-step explanation:

Not sure how Joe got three, but he did something incorrectly.

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