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Maksim231197 [3]
3 years ago
6

Solve 3(xx)+x-5 using the first principle

Mathematics
2 answers:
brilliants [131]3 years ago
8 0

Answer:

3x^2+x-5

Step-by-step explanation:

3\left(xx\right)+x-5

Remove parenthesis

3xx+x-5

Multiply x \times x=x^2

3x^2+x-5

Bingel [31]3 years ago
4 0

Answer:

3x²+x-5

Step-by-step explanation:

= 3(xx)+x-5

According to the rule, when bases are same powers are to be added.

= 3(x¹x¹)+x-5

= 3(x¹⁺¹)+x-5

= 3x²+x-5

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A solid metal sphere with diameter 6cm needs to be covered with a protective
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Answer:

It will cost: £28.28

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3 years ago
 If a 10-pound sack of potatoes costs $6.55, how much would 1 pound cost? Round your answer to the nearest cent. 
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\begin{array}{ccc}10\ lb&-&\$6.55\\\\1\ lb&-&\$ x\end{array}\ \ \ |cross\ multiply\\\\\\\\10\cdot x=1\cdot6.55\\\\10x=6.55\ \ \ \ |divide\ both\ sides\ by\ 10\\\\x=\frac{6.55}{10}\\\\x=0.65\underline{5}\approx\boxed{\$0.66}\\

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).

3 0
3 years ago
How do magnetic and electrical components of electromagnetic waves travel in relation to each other ?
olganol [36]

Answer:

at right angles. ...................electromagnetic waves is propagated when the electric and magnetic field component oscillate at right angles to each other. A changing electric field will produce a changing magnetic field and a changing magnetic field produces a changing electric field.

Step-by-step explanation:

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Rewrite as a square or a cube:<br><br> 3 3/8
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Answer:

<h2>The Answer is 3/2 in cube number.</h2>

Step-by-step explanation:

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