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2 years ago

15

A fourth degree polynomial equation is shown below.

1 answer:

natita [175]2 years ago

6 0

<span> 4x^2-8x-12 =
(x -3) * (x +1)

4x^2-24x+32
</span><span>(x -4) * (x -2)

</span>Factored Form
(x -3) * (x +1) * <span>(x -4) * (x -2) = 0

x = 3
x = -1
x = 4
x = 2

All four roots are real numbers and so the graph crosses the x-axis four times. The graph of the equation would resemble a "W".

</span>

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What is m∠PTR? a. 12 b. 40 c. 50 d. 140 HELP!!!

kramer

Answer:

m<PTR = 140°

Step-by-step explanation:

First, find the value of x. To find the value of x, derive an equation which you'd use in solving for x.

m<PTQ = (x + 28)°

m<RTS = (2x + 16)°

m<PTQ = m<RTS (vertical opposite angles are congruent)

Therefore:

x + 28 = 2x + 16

Solve for x. Combine like terms

28 - 16 = 2x - x

12 = x

x = 12

Find m<PTQ

m<PTQ = (x + 28)

plug in the value of x

m<PTQ = 12 + 28 = 40°

m<PTR + m<PTQ = 180° (supplementary angles)

m<PTR + 40° = 180° (substitution)

m<PTR = 180 - 40 (subtracting 40 from each side)

m<PTR = 140°

3 0

2 years ago

How do I do this question on a calculator (as shown below) note the calculator only can write out equations

Doss [256]

Answer:

1296*0.1884

Or

1296*18.84/100

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2 years ago

2x^3+5x^2-10 if x=-2

avanturin [10]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Let's evaluate :

${2x}^{3} + 5x {}^{2} - 10$

$2( - 2) {}^{ 3} + 5( - 2) {}^{2} - 10$

$(2 \times - 8) + (5 \times 4) - 10$

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2 years ago

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stepladder [879]

You’re answer is d (sum,sum).

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2 years ago

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Gnesinka [82]

Yes. If we multiply 6/13 by 1 in the form of 5/5, we obtain the fraction 30/65 without ever changing the value of the number itself.

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2 years ago

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