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2 years ago

Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

4 0

1.25 + .25 84/48 - 12/48 18/12 ÷ 2/2

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Which statement is true about the value of the expression below?<br> PLEASE HELP

Naily [24]

Answer:

The answer is It is between 0 and 1

Step-by-step explanation:

If you solve the problem step by step as (-2^3)^-2<1 then it comes out as true so it would be less than 1 but more then 0.

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2 years ago

PLEASE HELP ASAP! WILL GIVE BRAINLEIST!!

Sunny_sXe [5.5K]

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Step-by-step explanation:

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3 years ago

Researchers counted 8,912 monarch butterflies on one branch however estimated that number to be 1,000 times as large.

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2 years ago

Please help with this calculus problem!

ELEN [110]

$\dfrac{\mathrm dQ}{\mathrm dt}=\dfrac{a(1-5bt^2)}{(1+bt^2)^4}$
$Q(t)=\displaystyle\int\frac{a(1-5bt^2)}{(1+bt^2)^4}\,\mathrm dt$

Let $t=\dfrac1{\sqrt b}\tan u$ , so that $\mathrm dt=\dfrac1{\sqrt b}\sec^2u\,\mathrm du$ . Then the integral becomes

$\displaystyle\frac a{\sqrt b}\int\frac{1-5b\left(\frac1{\sqrt b}\tan u\right)^2}{\left(1+b\left(\frac1{\sqrtb}\tan u\right)^2\right)^4}\sec^2u\,\mathrm du$
$=\displaystyle\frac a{\sqrt b}\int\frac{1-5\tan^2u}{(1+\tan^2u)^4}\sec^2u\,\mathrm du$
$=\displaystyle\frac a{\sqrt b}\int\frac{1-5\tan^2u}{\sec^6u}\,\mathrm du$
$=\displaystyle\frac a{\sqrt b}\int(\cos^6u-5\sin^2u\cos^4u)\,\mathrm du$
$=\displaystyle\frac a{\sqrt b}\int(6\cos^2u-5)\cos^4u\,\mathrm du$

One way to proceed from here is to use the power reduction formula for cosine:

$\cos^{2n}x=\left(\dfrac{1+\cos2x}2\right)^n$

You'll end up with

$=\displaystyle\frac a{16\sqrt b}\int(5\cos2u+8\cos4u+3\cos6u)\,\mathrm du$
$=\displaystyle\frac a{16\sqrt b}\left(\frac52\sin2u+2\sin4u+\frac12\sin6u\right)+C$
$=\dfrac a{32\sqrt b}(5\sin2u+4\sin4u+\sin6u)+C$
$Q(t)=\dfrac{at}{(1+bt^2)^3}+C$

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2 years ago

Is y= -2/x a linear equation

diamong [38]

Answer:

Step-by-step explanation:

linear means straight line.

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2 years ago

Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4​

Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4