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3 years ago

A,B, and C are polynomials: A= 3x-4 B= x+7 C= x^2+2 what is A^2-(B+C) in its simplest form

Mathematics

2 answers:

katen-ka-za [31]3 years ago

8 0

Answer:

8x^2-25x+7

Mark brainliest?

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kifflom [539]3 years ago

7 0

Answer:

The answer is (8x²- 25x +7).

Step-by-step explanation:

Given A, B, C are the polynomials.

A = 3x - 4

B = x + 7

C = x² + 2

We have to find the value of A²-(B + C)

By putting the values of A, B and C the expression will be

(3x - 4)²- (x + 7 + x² + 2) = (9x²+16-24x) - (x² + x + 9)

9x² - x² -24x - x + 16 - 9 = 8x² - 25x + 7

So the simplest form of the expression is (8x² - 25x + 7)

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A company produces optical-fiber cable with a mean of 0.6 flaws per 100 feet. What is the probability that there will be exactly

Mars2501 [29]

Answer:

$P(X = 4) =0.133$

Step-by-step explanation:

From the question we are told that:

Mean $\x=0.6/100$

Flaws $f=4$

Distance $d_2=1000ft$

Generally the equation for Poisson mean lambda over 1000 is mathematically given by

$\lambda=0.6*1000/100$

$\lambda = 6$

Therefore

$P(X = 4) = {e^-\lambda * \lambda^{\=x}} {{\=x}!}$

$P(X = 4) =\frac{ e^{-6} * 6^4}{ 4!}$

$P(X = 4) =0.133$

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3 years ago

Find the value of x and y.

Wewaii [24]

The correct answer is D

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Multiply. 3 1/2 · 2 2/3 A. 9 1/3 B. 9 2/3 C. 21 1/16 D. 9 1/6

Jet001 [13]

3 1/2 · 2 2/3

= 7/2 · 8/3

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= 9 2/6

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Answer

A. 9 1/3

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3 years ago

Read 2 more answers

What is the midpoint of the line segment with endpoints (1,-6) and (-3,4)?

kirill115 [55]

Answer:

(-1,-1)

Step-by-step explanation:

To find the x coordinate of the midpoint, add the x coordinates of the endpoint and divide by 2

(1+-3)/2 = -2/2 = -1

To find the y coordinate of the midpoint, add the y coordinates of the endpoint and divide by 2

(-6+4)/2 = -2/2 = -1

(-1,-1)

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3 years ago

3. What is the radius of the figure if the Area of the Sector is 288*pi? *

Alla [95]

Answer:

The radius of the circle is 36

x = 36

Step-by-step explanation:

Area of sector formula is:

$A=\frac{\theta}{360}*\pi r^2$

Given $\theta=80$ , and area (A) is $288\pi$ , we substitute and solve for r:

$A=\frac{\theta}{360}*\pi r^2\\288\pi=\frac{80}{360}*\pi r^2\\288\pi=\frac{2}{9}*\pi r^2\\288\pi=\frac{2\pi r^2}{9}\\2\pi r^2= 2592 \pi \\r^2= 1296\\r=\sqrt{1296}\\r=36$

Thus,

The radius of the circle is 36

x = 36

7 0

3 years ago