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3 years ago

Is this answer are right, please help

Mathematics

1 answer:

uranmaximum [27]3 years ago

3 0

Answer:

Your answers are correct. However, the instructions say to write the formula, and in my class you would write A= bh ÷ 2.

Step-by-step explanation:

However, the instructions say to write the formula, and in my class you would write A= bh ÷ 2. Also, you may want to write A= for every line of math that you do. If your class doesn't do that, then disregard that. :)

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Claire Judice

Julli [10]

Answer:

The values of 'x' are -1.2, 0, 0, $-4i$ or $4i$ .

Step-by-step explanation:

Given:

The equation to solve is given as:

$5x^5+6x^4+80x^3+96x^2=0$

Factoring $x^2$ from all the terms, we get:

$x^2(5x^3+6x^2+80x+96)=0$

Now, rearranging the terms, we get:

$x^2(5x^3+80x+6x^2+96)=0$

Now, factoring $5x$ from the first two terms and 6 from the last two terms, we get:

$x^2(5x(x^2+16)+6(x^2+16))=0\\x^2(x^2+16)(5x+6)=0$

Now, equating each factor to 0 and solving for 'x', we get:

$x^2=0\\x=0\ and\ 0\\\\5x+6=0\\x=\frac{-6}{5}=1.2\\\\x^2+16=0\\x^2=-16\\x=\sqrt{-16}=\pm 4i$

There are 3 real values and 2 imaginary values. The value of 'x' as 0 is repeated twice.

Therefore, the values of 'x' are -1.2, 0, 0, $-4i$ or $4i$ .

4 0

4 years ago

Factor the following Polynomials<br> 9x^2 - 42x + 49

Allisa [31]

Answer:(3x-7) (3x-7)

Step-by-step explanation:

9x2-42x+49

The two by the 9 is power of 2 so the small two above

6 0

3 years ago

Complete the table for this equation. y=x+6

weeeeeb [17]

Answer:

Step-by-step explanation:

4 0

2 years ago

Match the equations of the lines with their graphs.

nika2105 [10]

Answer:1. y = 2x - 3

2. y= 2x + 3

3. y = -2x + 3

4. y = -2x - 3

Step-by-step explanation:

5 0

3 years ago

I need help on this one please

zepelin [54]

Answer:

here is what i think

3 0

3 years ago