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Vera_Pavlovna [14]

2 years ago

8

An Internet store charges a base fee plus $1.50 per pound to ship items. The table shows samples of their shipping rates.

2 answers:

nalin [4]2 years ago

7 0

Answer: For Last Question 4.50

Step-by-step explanation:It depends on the price per pound. Let's say the price per pound is 50 cents (or 0.50). (This is an example, the answer I'm giving will most likely NOT be correct, due to the nature of your question - sorry!) To calculate the price of Derek's package, you would multiply 7 (the weight of the package) by 0.50 (the price per pound), which totals to 3.50 Next, to calculate the price for Keisha's package, you'd do the same thing, but instead of multiplying 7 by the price per pound, you would multiply 10 by the price per pound, or 0.50. This multiplies out to 5 dollars. Next you'd subtract Derek's price from Keisha's, which is 5 - 3.50 or 1.50. If it is asking for a percentage, it would be about 150%.

butalik [34]2 years ago

4 0

Answer:

its a 4.50

Step-by-step explanation:

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Let a equal measure of a angle a. The equation 360ﾟ= a + 90ﾟ+ 135ﾟ+ 75ﾟ represents the sum of the angles in the quadrilateral. F

lina2011 [118]

Answer:

A = 60°

Step-by-step explanation:

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2 years ago

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Which number line represents the solution set for inequality?

AlekseyPX

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Third graph down

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2 years ago

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2 years ago

What is the following quotient? 5/√11-√3

kati45 [8]

ANSWER

$\frac{5( \sqrt{11} + \sqrt{3} )} {8}$

EXPLANATION

The given rational function is

$\frac{5}{ \sqrt{11} - \sqrt{3}}$

We need to rationalize the denominator by multiplying both the numerator and the denominator by the conjugate of

$\sqrt{11} - \sqrt{3}$

which is

$\sqrt{11} + \sqrt{3}$

When we rationalize we obtain:

$\frac{5( \sqrt{11} + \sqrt{3} )}{(\sqrt{11} - \sqrt{3} )( \sqrt{11} + \sqrt{3} )}$

The denominator is now a difference of two squares:

$(a - b)(a + b) = {a}^{2} - {b}^{2}$

We apply this property to get

$\frac{5( \sqrt{11} + \sqrt{3} )}{( \sqrt{11}) ^{2} - ( \sqrt{3}) ^{2} )}$

$\frac{5( \sqrt{11} + \sqrt{3} )}{11 - 3}$

This simplifies to

$\frac{5( \sqrt{11} + \sqrt{3} )} {8}$

Or

$\frac{5 } {8}\sqrt{11} + \frac{5 } {8}\sqrt{3}$

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2 years ago

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