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3 years ago

Identify the mistake that was made.

Mathematics

1 answer:

Daniel [21]3 years ago

8 0

the error was they forgot to make 18 a negative

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Round off 15.8% to the nearest whole percent with work shown

Rudik [331]

15.8% would round to 16%

If the number after the decimal point is 5 or greater you round the 5 up to a 6. If it had been less than a 5 it would have rounded down to 15%.

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4 years ago

Determine the slope of the line passing through the given points.<br><br> (-2, -2) and (-2, 3)

saveliy_v [14]

Answer:

Point-Slope: -2

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3 years ago

What is A+4 when k=7

MrMuchimi

Step-by-step explanation:

k-(7) =k-7 upon 7 k- (k-7)upon 7 =0 k upon 4 -(k-7)=0

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4 years ago

5x3 + 14x2 + 9x <br> help

Cerrena [4.2K]

<h3>Answer: x(x+1)(5x+9) </h3>

===================================================

Work Shown:

5x^3 + 14x^2 + 9x

x( 5x^2 + 14x + 9 )

To factor 5x^2 + 14x + 9, we could use the AC method and guess and check our way to getting the correct result.

A better way in my opinion is to solve 5x^2 + 14x + 9 = 0 through the quadratic formula

$x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(14)\pm\sqrt{(14)^2-4(5)(9)}}{2(5)}\\\\x = \frac{-14\pm\sqrt{16}}{10}\\\\x = \frac{-14\pm4}{10}\\\\x = \frac{-14+4}{10} \ \text{ or } \ x = \frac{-14-4}{10}\\\\x = \frac{-10}{10} \ \text{ or } \ x = \frac{-18}{10}\\\\x = -1 \ \text{ or } \ x = \frac{-9}{5}\\\\$

Then use those two solutions to find the factorization

x = -1 or x = -9/5

x+1 = 0 or 5x = -9

x+1 = 0 or 5x+9 = 0

(x+1)(5x+9) = 0

So we have shown that 5x^2 + 14x + 9 factors to (x+1)(5x+9)

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Overall,

5x^3 + 14x^2 + 9x

factors to

x(x+1)(5x+9)

6 0

3 years ago

Identify the arc length of AD◠ in terms of π.<br><br> HELP PLZZ!! I'M CONFUSED!!

zavuch27 [327]

Answer:

≈ 3.91π in.

Step-by-step explanation:

3 0

3 years ago