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2 years ago

What is the result when 4x^2-17x+36 is subtracted from 2 x^2-5x+25?

2 answers:

4 0

$2x^{2} - 5x + 25 - (4 x^{2} - 17x + 36) 

= 2x^{2} - 5x + 25 -4 x^{2} +17x -36

= (2-4) x^{2} + (-5+17)x + 25 - 36

= -2 x^{2} + 12x - 11$

Katen [24]2 years ago

4 0

$2x^2-5x+25-(4x^2-17x+36)=\\
2x^2-5x+25-4x^2+17x-36=\\
-2x^2+12x-11$

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Lady_Fox [76]

By Stokes' theorem, the line integral of $\vec F$ over $C$ is given by the surface integral of the curl of $\vec F$ over $S$ , where $S$ is the region of intersection of the plane $z=y+6$ and the cylinder $x^2+y^2=1$ with $S$ having positive/upward orientation.

Parameterize $S$ by

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with $0\le u\le1$ and $0\le v\le2\pi$ .

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The curl of $\vec F$ is

$\nabla\times\vec F(x,y,z)=(1-x)\,\vec\imath-\vec\jmath+(z-2)\,\vec k$

Then the line integral is equivalent to

$\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S$

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2 years ago

A square picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. Find the area of the mat that

Andreas93 [3]

Answer:

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2 years ago

Consider random samples of size 80 drawn from population A with proportion 0.48 and random samples of size 66 drawn from populat

gogolik [260]

Answer:

Standard error = 0.070

Step-by-step explanation:

Formula for the standard error of the distribution of differences in sample proportions is;

σ_(A - B) = √((p_a^(1 - p_a^)/n_a) + (p_b^(1 - p_b^)/n_b))

We are given;

p_a^ = 0.48

n_a = 80

p_b^ = 0.13

n_b = 66

Thus;

σ_(A - B) = √((0.48(1 - 0.48)/80) + (0.14(1 - 0.13)/66))

σ_(A - B) = √0.00496545455

σ_(A - B) = 0.070

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2 years ago

Jonathan’s class has 30 boys. Of the students in his class, 60% are girls. How many girls are in Jonathan’s class?

Aleksandr-060686 [28]

Answer: 45

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Does anyone know this one?

iogann1982 [59]

It's A.

18 correlates with $350 and 12 correlates with $520.
That crosses off B and D.

18 + 12 days combined equals 30.
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A is your answer! :D

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2 years ago