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2 years ago

I need help with this question

Mathematics

2 answers:

Leona [35]2 years ago

8 0

Im guessing Scientific Means it uses Formulas and different types of symbols, so I would think 5.91E10 & 2.66 x 10^-3 go in the Scientific Section. The other 2 go in Standard.

Trying to Help!

Irina18 [472]2 years ago

8 0

Scientific Notation has an "E" or a times 10 to the equation.

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Expand and combine like terms (3z^5 +7z^2)^2

AVprozaik [17]

Answer:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

Step-by-step explanation:

Since it's a perfect square, we can simply use the formula:

$\displaystyle{(ax+by)^2 = a^2x^2+2abxy+b^2y^2}$

Given the perfect square expression $\displaystyle{(3z^5+7z^2)^2}$ . Apply perfect square formula:

$\displaystyle{(3z^5+7z^2)^2 = 3^2(z^5)^2+2(3)(7)(z^5)(z^2) + 7^2(z^2)^2 }$

Knowing laws of exponent is mandatory when it comes to algebra. Recall that:

$\displaystyle{(a^m)^n = a^{mn}}\\\\\displaystyle{a^m \cdot a^n = a^{m+n}}$

Apply laws of exponent to simplify the terms or expression:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

Since there are no like-terms to do operation with (these terms have different degrees so they are not considered to be like-terms.) Therefore, the final answer is:

$\displaystyle{(3z^5+7z^2)^2 = 9z^{10}+42z^7 + 49z^4 }$

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1 year ago

Look at pic and answer (7th math)

expeople1 [14]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Fred completed 10 math problems this is 40% of the math problems he must do how many are left??

Maru [420]

Answer:

100%-40%=60%

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3 years ago

261,256,251 find the 50th term

marshall27 [118]

Answer:

$a_{50}=16$

Step-by-step explanation:

Given that,

An airthmetic sequence,

261,256,251

We need to find the 50th term.

We have,

first term, a = 261

common difference = 256-261 = -5

The nth term of the AP is given by :

$a_n=a+(n-1)d\\\\a_{50}=a+49d\\\\a_{50}=261+49(-5)\\\\a_{50}=16$

So, the 50th term of the sequence is 16.

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3 years ago

Whats the distance between points p(8,2) and q(3,8)

True [87]

The answer is 7.8
Hope this helps!

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3 years ago