Being cleaner and longer-burning compared with

Mathematics

1 answer:

givi [52]2 years ago

4 0

(C) "Cleaner and longer-burning than"

The highlighted paragraph is grammatically incorrect and makes little sense in the context because the words "being" and "compared" conflict with the remainder of the sentence's tense structure.

Only C fixes this mistake without introducing a new one (s). The past, present, and future tenses of a verb are available. Things from the past are things that have already occurred (earlier in the day, yesterday, last week, three years ago).

The present tense is used to talk about things that are ongoing or that are currently happening now. Things that are yet to occur are described in the future tense.

Here's another question with an answer similar to this about tenses:

brainly.com/question/11222622

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when converting into scientific notation moving the decimal point to the left means the exponent on the 10 should be positive. I

harina [27]

This is false, since moving the decimal point to the left makes the number smaller. Therefore, the number on the exponent should be negative.

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3 years ago

Which graph correctly solves the system of equations below? y = −x2 − 1 y = 2x2 − 4 (6 points)

myrzilka [38]

The equations are

$i) y=-x^2-1\\\\ii) y=2x^2-4$ ,

The graphs of the solutions (x, y) of these equations are 2 parabolas, since the right hand side expressions are polynomials of degree 2.

The solution/s of the system are the x-coordinates of the point/s of intersection of the parabolas.

The solutions of the first equation form a parabola looking downwards (since the coefficient of x^2 is -), and the second, a parabola opening upwards (since the coefficient of x^2 is +).

We can draw both parabolas, but to find the solution we still need to solve the system algebraically.

The algebraic solution of the system is:

$-x^2-1=2x^2-4\\\\3x^2-3=0\\\\3(x^2-1)=0\\\\x^2-1=0$ , so

the solutions are x=-1 and x=1.

The graph of the system is drawn using desmos.com

If we are allowed to use a graphic calculator, we can draw both graphs and point at the solution.