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3 years ago

Somebody please help me with this

Mathematics

1 answer:

Lostsunrise [7]3 years ago

4 0

Answer:

cant see the screen

Step-by-step explanation:

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What is 4/4 as a decimal

Marina86 [1]

Answer:

4/4 as a decimal is 1.00 because 4/4 is one whole

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

HELP!!! GIVE WHOEVER BRAINLIEST !!!

andrey2020 [161]

Answer:

Step-by-step explanation:

The opposite of x is -x

And the opposite of -6 is 6

So -x+6 is the inverse

8 0

1 year ago

Integrate the following

enot [183]

I suppose you mean to have the entire numerator under the square root?

$\displaystyle\int_2^4\frac{\sqrt{x^2-4}}{x^2}\,\mathrm dx$

We can use a trigonometric substitution to start:

$x=2\sec t\implies\mathrm dx=2\sec t\tan t\,\mathrm dt$

Then for $x=2$ , $t=\sec^{-1}1=0$ ; for $x=4$ , $t=\sec^{-1}2=\frac\pi3$ . So the integral is equivalent to

$\displaystyle\int_0^{\pi/3}\frac{\sqrt{(2\sec t)^2-4}}{(2\sec t)^2}(2\sec t\tan t)\,\mathrm dt=\int_0^{\pi/3}\frac{\tan^2t}{\sec t}\,\mathrm dt$

We can write

$\dfrac{\tan^2t}{\sec t}=\dfrac{\frac{\sin^2t}{\cos^2t}}{\frac1{\cos t}}=\dfrac{\sin^2t}{\cos t}=\dfrac{1-\cos^2t}{\cos t}=\sec t-\cos t$

so the integral becomes

$\displaystyle\int_0^{\pi/3}(\sec t-\cos t)\,\mathrm dt=\boxed{\ln(2+\sqrt3)-\frac{\sqrt3}2}$

7 0

2 years ago

Cristy has ten pets including cats, birds, and hamsters. She has twice as many hamsters as cats.

marysya [2.9K]

6 hamsters, 3 cats, and 1 bird = 38 legs.

6H + 3C + 1B = 30

H = 4 C = 4 B = 2

6*4 + 3*4 + 1*2 = 38

Hope this helped :)

6 0

2 years ago

3•f(-4)-3•g(-2)=?<br> Help please

Scilla [17]

Answer:

3⋅f(−4)−3⋅g(−2) = −12f+6g

Step-by-step explanation:

Write the problem as a mathematical expression.

3⋅f(−4)−3⋅g(−2)

Move − 4 to the left of f .

3⋅(−4⋅f)−3⋅(g(−2) )

Multiply−4 by 3.

−12f−3⋅(g(−2) )

Move − 2 to the left of g .

−12f−3⋅(−2⋅g)

and lastly Multiply−2 by −3.

−12f+6g

Hope this helps you out.

8 0

2 years ago