3 years ago

Find the value of x in this polygon.

Mathematics

2 answers:

Sati [7]3 years ago

8 0

Answer:

Step-by-step explanation:

ladessa [460]3 years ago

3 0

I think the answer to your question is 51

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zubka84 [21]

Answer:

A, D, and I think E

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3 years ago

Find all the zeros of the equation<br> -3x^4 + 27x^2 + 1200 = 0

guajiro [1.7K]

Answer:

$\displaystyle x=-5,\ x=5,\ x=4i,\ x=-4i$

Step-by-step explanation:

Biquadratic Equation

It's a fourth-degree equation where the terms of degree 1 and 3 are missing. It can be solved for the variable squared as if it was a second-degree equation, and then take the square root of the results

Our equation is

$\displaystyle -3x^4+27x^2+1200=0$

If we call $y=x^2$ , our equation becomes a second-degree equation

$\displaystyle -3y^2+27y+1200=0$

Dividing by -3

$\displaystyle y^2-9y-400=0$

Factoring

$\displaystyle (y-25)(y+16)=0$

It leads to these solutions

$\displaystyle y=25\ ,\ y=-16$

Taking back the change of variable, we have for the first solution

$\displaystyle x^2=25\Rightarrow x=-5,x=5$

Now for the second solution, we get imaginary (complex) values

$\displaystyle x^2=-16\Rightarrow x=4i,\ x=-4i$

Summarizing, the four solutions for x are

$\displaystyle x=-5,\ x=5,\ x=4i,\ x=-4i$

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3 years ago

Wirth 20 points (02.02)A shape is shown on the graph:

miv72 [106K]

Answer:

The reflection of the dots marked is on the opposite side at the same numbers and lines but with a different sign in front of the number.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Please help me solve this

Rashid [163]

Answer:

??????????????

Step-by-step explanation:

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Find the area of the pallallelogram

svet-max [94.6K]

Equation: bh

Equation: 6.2x2.4=14.88 inches^2

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