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Andreas93 [3]
3 years ago
9

What work am I supposed to do I have to do the work or I will get it wrong !

Mathematics
1 answer:
murzikaleks [220]3 years ago
6 0
The work that’s assigned
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What is 4sqrt7^3 in exponential form?
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Answer:

\boxed{7^{\frac{3}{2} } \times 4}

Step-by-step explanation:

4 (\sqrt{7} )^3

Square root can be written as a power.

4(7^{\frac{1}{2} })^3

Multiply the exponents.

4(7^{\frac{3}{2} })

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An antique collector wants to know the age of a particular chair in a shop
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3 years ago
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If 9 is subtracted from two thirds of a number , the result is 7. find the number.
ankoles [38]
So what you do is (2/3)x-9=7. Add 9 to both sides (2/3)x=16. Multiply by reciprocal on both sides 16 x (3/2). 16 x 3 = 48. 48/2=24
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3 years ago
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NEED HELP..... Select the polynomial that is a perfect square trinomial. 36x^2 − 4x + 16 16x^2 − 8x + 36 25x^2 + 9x + 4 4x^2 + 2
Iteru [2.4K]
<h3>Answer: Choice D.  4x^2 + 20x + 25</h3>

===============================================

Explanation:

Perfect square trinomials are in the form (a+b)^2 = a^2+2ab+b^2

So the first and last terms must be perfect squares. The middle term is twice that of the square roots of each first and last term.

Choice D fits the description because 4x^2 = (2x)^2 is the first term, so a = 2x and 25 = 5^2 is the last term meaning b = 5. Note how 2ab = 2*2x*5 = 20x is the middle term.

-------------

(a+b)^2 = a^2+2ab+b^2

(2x+5)^2 = (2x)^2+2*2x*5+5^2

(2x+5)^2 = 4x^2 + 20x + 25

8 0
3 years ago
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