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2 years ago

12

N + 6 ≥ −3 how can i slove this?

1 answer:

trapecia [35]2 years ago

7 0

The answer is n=-9

Treat the inequality symbol like an equal sign and then subtract 6 from -3 making n=-9

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Hello everyone if you could help me that would be awesome

Viktor [21]

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3 years ago

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I really need help on this question.!

IrinaVladis [17]

Answer:

$b = 135 \\ a + c = 45(ie \: 180 - 135) \\ a = \frac{45}{2} \\ a = 22.5$

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2 years ago

Consider the first five steps of the derivation of the Quadratic Formula.

lara31 [8.8K]

Answer:

Full proof below

Step-by-step explanation:

$\displaystyle ax^2+bx+c=0\\\\ax^2+bx=-c\\\\x^2+\biggr(\frac{b}{a}\biggr)x=-\frac{c}{a}\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\biggr(\frac{b}{2a}\biggr)^2=-\frac{c}{a}+\biggr(\frac{b}{2a}\biggr)^2\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=-\frac{4ac}{4a^2}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=\frac{b^2-4ac}{4a^2}\\ \\x+\frac{b}{2a}=\pm\frac{\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

6 0

1 year ago

Is the quotient of<br> (-5) ➗ (-7) a rational number? Explain your answer in two or more sentences.

ValentinkaMS [17]

-5/-7 = 5/7 = 0.71428577142857... The decimal form of the fraction never ends, so 5/7 is not a rational number

3 0

3 years ago

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Three-fifths of the sum of 9 and f

blsea [12.9K]

Answer: $\frac{3}{5} f+\frac{27}{5}$

Step-by-step explanation:

Three-fifths of the sum of 9 and f is $\frac{3}{5} (9+f)$ = $\frac{27}{5} +\frac{3}{5} f$ = $\frac{3}{5} f+\frac{27}{5}$

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2 years ago