Help with these please

Mathematics

1 answer:

Svetlanka [38]4 years ago

5 0

A.
$1.89 \div( 2 \times \frac{1}{4} )$
b.
$weight \: per \:cm = \frac{9}{15} = 0.6$
e.
Let the number be x
$\frac{75}{85} = \frac{x}{200}$
Others I am not really sure.

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Factor completely, then place the factors in the proper location on the grid.

grandymaker [24]

Answer:

$(x^n + 2)(x^n + 8)$

Step-by-step explanation:

The polynomial $x^{2n}+10x^n + 16$ can be factored exactly the same as the polynomial $x^2 + 10x + 16$ . Here it factors into two numbers which multiply to 16 but add to 8. These factors are 8 and 2. So it factors into the expression (x+8)(x+2).

For the polynomial $x^{2n}+10x^n + 16$ it factors into the same factors except x ^n is used instead. The factors are $(x^n + 2)(x^n + 8)$

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The coffee counter charges ?"$11.00" per pound for kenyan french roast coffee and ?"$13.00" per pound for sumatra coffee. How mu

zloy xaker [14]

Answer: The answer is 13 ponds of each type should be used.

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$x+y=26,~~~~~~~~~~~~~~~~~~~~~~(A)\\\\11x+13y=12\times 26.~~~~~~~~~~(B)$