3 years ago

Brooke made 4 dresses with 7 yards of fabric. How many yards did she use on 1 dress

1 answer:

8 0

So the problem is 7 divided by 4. The answer is 1.75 but the units are 1 yard and 75 feet. But you can keep it simple and put 1.75yd

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If $1000 is invested at an interest rate of 6.5% per year, compounded daily, find the value of the investment after the given nu

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3 years ago

Three students were given the expression shown and were asked to take a common factor out of two of the terms.

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3 years ago

Find two positive numbers whose product is 25 and whose sum is a minimum. (if both values are the same number, enter it into bot

pshichka [43]

Let xy = 25, x and y > 0.

$y = \frac{25}{x}$
$\text{Denote S as: } x + y$
$S(x) = x + \frac{25}{x}$

$\text{Minimum: }S'(x) = 0, S''(x) > 0$
$S'(x) = 1 - \frac{25}{x^{2}}$
$1 - \frac{25}{x^{2}} = 0$
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$x = 5 (x > 0)$

$S''(x) = \frac{50}{x^{3}} > 0, (x > 0)$

Thus, at x = 5, there lies a minimum summation, and this forms a square with side length of 5.

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4 years ago

BRAINLIEST ANSWER FAST!Subtract and simplify. Show work to earn full credit.

Alecsey [184]

Answer:

Step-by-step explanation:

(-2y^2-11y-7)-(-9y^2-5y+10) (firstly, we remove the brackets)

-2y^2 - 11y - 7 + 9y^2 + 5y - 10

= (-2y^2 + 9y^2) + (-11y + 5y) + (-7 - 10)

= (7y²) + (-6y) + (-17)

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3 years ago

A downtown parking lot charges $4.00 per hour for the first two hours and $1.50 for each additional hour thereafter. Raul paid $

Eddi Din [679]

Answer:

5 hours

Step-by-step explanation:

2 first hours cost 4.00 which equals 8.00

Additional hours cost 1.50

So we know he already has to pay 8.00 for the first 2 hours

now you just subtract 8.00 from 12.50 which equals 4.50

If one hour is 1.50 Then 2 hours is 3.00 so we subtract 3.00 from 4.50 which equals 1.50 and 1.50 equalss another hour

y=4x+1.50

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3 years ago