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3 years ago

13

Number 1 will choose brainliest

1 answer:

ivann1987 [24]3 years ago

5 0

Answer: Number 1 is 40 dollars

Step-by-step explanation:

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If f(x)=x2-25and g(x)=x-5 ,what is the domain of (f/g)(x)?

djyliett [7]

Answer:

Find the domain.

Interval Notation:

(−∞,5)∪(5,∞)

Set-Builder Notation:

{x|x≠5}

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4 years ago

Which of the following are the coordinates of a rectangle with a length of 8 units and width of 5

Snowcat [4.5K]

Answer:

Ans =C(4,1),(-4,1),(4,6),(-4,6)

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3 years ago

Find the distance between this pair of points (-3,5) and (5. - 1)

padilas [110]

Answer:

14.

Step-by-step explanation:

6 down, 8 right

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3 years ago

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Evaluate the double integral ∬Ry2x2+y2dA, where R is the region that lies between the circles x2+y2=16 and x2+y2=121, by changin

olga2289 [7]

Answer:

See answer and graph below

Step-by-step explanation:

∬Ry2x2+y2dA

=∫Ry.2x.2+y.2dA

=A(2y+4Ryx)+c

=∫Ry.2x.2+y.2dA

Integral of a constant ∫pdx=px

=(2x+2.2Ryx)A

=A(2y+4Ryx)

=A(2y+4Ryx)+c

The graph of y=A(2y+4Ryx)+c assuming A=1 and c=2

8 0

3 years ago

Use the triangle below to find cos V.

Semenov [28]

Answer:

$cos\ V = \frac{2\sqrt{29}}{29}$

Step-by-step explanation:

Given

The attached triangle

Required

Find cos V

In trigonometry:

$cos\theta = \frac{Adjacent}{Hypotenuse}$

In this case:

$cos V= \frac{TV}{UV}$

Where

$TV = 6$

and

$UV^2 = TV^2 + TU^2$ -- Pythagoras

$UV^2 = 6^2 + 15^2$

$UV^2 = 261$

Take square roots

$UV = \sqrt{261$

$UV = \sqrt{9*29$

$UV = \sqrt{9} *\sqrt{29$

$UV = 3\sqrt{29$

So:

$cos V= \frac{TV}{UV}$

$cos\ V = \frac{6}{3\sqrt{29}}$

$cos\ V = \frac{2}{\sqrt{29}}$

Rationalize:

$cos\ V = \frac{2}{\sqrt{29}}*\frac{\sqrt{29}}{\sqrt{29}}$

$cos\ V = \frac{2\sqrt{29}}{29}$

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3 years ago