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3 years ago

What is the volume of the rectangular prism

Mathematics

1 answer:

Effectus [21]3 years ago

8 0

Answer:

the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units

Hope that helps

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Which of the following is a complex number?

daser333 [38]

Answer:

C. $3 \sqrt{ \frac{7}{5} } + \sqrt{ - \frac{9}{5} }$

Step-by-step explanation:

Recall that:

$\sqrt{ - 1} = i$

For this particular question, you just have to look for the radical containing a negative sign under the square root i.e a negative radicand.

That will be option C.

This is given as

$3 \sqrt{ \frac{7}{5} } + \sqrt{ - \frac{9}{5} }$

This can be rewritten to reveal the complex part as:

$3 \sqrt{ \frac{7}{5} } + \sqrt{ \frac{9}{5} }i$

Therefore the correct answer us option C

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3 years ago

If $1200 is deposited in an account that pays 6.5% interest, what is the difference in the amount after 4 years between the amou

rodikova [14]

The interest would be $312

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3 years ago

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In a clinical trial of 2165 subjects treated with a certain drug, 21 reported headaches. In a control group of 1718 subjects gi

sashaice [31]

Answer

Relative risk= 0.742

Odds ratio= 0.745

Detailed calculation shown in diagram:

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4 years ago

Solve the 5 questions. I beg you T_T (90 points!!!)

jok3333 [9.3K]

Answer:

a c a b

Step-by-step explanation:

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2 years ago

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Can someone please help me?(Fill in the blanks) This is on Khan Academy too, I need it ASAP! if you answer right I'll mark you B

Travka [436]

First divide both sides by 2:

$2x^2+7x+6=0\implies x^2+\dfrac72x+3=0$

Move the constant term to the right side:

$x^2+\dfrac72x=-3$

Since

$(x+y)^2=x^2+2xy+y^2$

we want to have

$2y=\dfrac72\implies y=\dfrac74$

Then

$\left(x+\dfrac74\right)^2=x^2+\dfrac72x+\dfrac{49}{16}$

So in our equation, we need to add 49/16 to both sides in order to complete the square:

$x^2+\dfrac72x+\dfrac{49}{16}=-3+\dfrac{49}{16}$

$\implies\left(x+\dfrac74\right)^2=\dfrac1{16}$

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3 years ago