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2 years ago

If sin =1/2then show that 3cos -4cos^3=0z

Mathematics

1 answer:

Katarina [22]2 years ago

7 0

Step-by-step explanation:

ever coner should have a value.... for example sinA or cos$

please check the question again

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Jin's mother estimates there is a half-gallon of fruit punch remaining in the container. There are actually 72 ounces of fruit p

Ivanshal [37]

Answer:

89%

Step-by-step explanation:

the real answer is 64 fluid ounces

64/72*100 which is 88.89% or 89%

Hope this helps plz hit the crown :D

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2 years ago

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I-ready testing need help ASAP!

Leto [7]

Answer:

-11/12

Step-by-step explanation:

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2 years ago

How many seconds are in 76 minutes

Kipish [7]

Answer:

4560

Step-by-step explanation:

Well, first we need to understand how different time formats (for lack of a better word) are related in terms of seconds.

1 minute has 60 seconds

I hour has 3600 seconds

1 day has 86400 seconds

1 week has 604800 seconds

Now, with this information at hand, you can find out how many seconds are in X minutes or X days or X months or a year (and so on).

As for your question, we know that one minute has 60 seconds therefore 76 minutes will have (76x60) seconds

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3 years ago

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Rewrite in simplest rational exponent form √x • 4√x. Show each step of your process.

Lisa [10]

$First\ step:you\ must\ have\ the\ domain\ (D)\\x\geq0\to D:x\in[0;\ \infty)\\\\Second\ step:use\ \sqrt{a}\cdot\sqrt{a}=\left(\sqrt{a}\right)^2=a\ for\ a\geq0\\\\Solution:\\\sqrt{x}\cdot4\sqrt{x}=4(\sqrt{x})^2=\huge\boxed{4x}$

$or\ other\ method\\\\First\ step:\ use\ \sqrt{x}=x^{\frac{1}{2}}\\\\\sqrt{x}\cdot4\sqrt{x}=x^\frac{1}{2}\cdot4x^{\frac{1}{2}}\\\\Second\ step:\ use\ a^n\cdot a^m=a^{n+m}\\\\x^\frac{1}{2}\cdot4x^{\frac{1}{2}}=4\cdot x^\frac{1}{2}\cdot x^{\frac{1}{2}}=4x^{\frac{1}{2}+\frac{1}{2}}=4x^1=\huge\boxed{4x}$

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2 years ago

Expand the following

Whitepunk [10]

Answer:

Please complete the question..

Step-by-step explanation:

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3 years ago

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