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3 years ago

12

Which question is best modeled with a division expression?

1 answer:

Andreyy893 years ago

4 0

Answer:The first one: how many g's are in 38

Step-by-step explanation:

What is g of 48? The term "of" implies multiplication

The total of g and 48? This may not be as obvious, but that's implying addition.

How much more than g is 48? The phrase "how much more than" implies subtraction

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2 years ago

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saul85 [17]

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2 years ago

D<br> Evaluate<br> arcsin<br> (6)]<br> at x = 4.<br> dx

sineoko [7]

Answer:

$\frac{1}{2\sqrt{5} }$

Step-by-step explanation:

Let, $\text{sin}^{-1}(\frac{x}{6})$ = y

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cos(y) = $\sqrt{1-\text{sin}^{2}(y) }$

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Therefore, from equation (1),

$\frac{dy}{dx}=\frac{1}{6\sqrt{1-\frac{x^2}{36}}}$

Or $\frac{d}{dx}[\text{sin}^{-1}(\frac{x}{6})]=\frac{1}{6\sqrt{1-\frac{x^2}{36}}}$

At x = 4,

$\frac{d}{dx}[\text{sin}^{-1}(\frac{4}{6})]=\frac{1}{6\sqrt{1-\frac{4^2}{36}}}$

$\frac{d}{dx}[\text{sin}^{-1}(\frac{2}{3})]=\frac{1}{6\sqrt{1-\frac{16}{36}}}$

$=\frac{1}{6\sqrt{\frac{36-16}{36}}}$

$=\frac{1}{6\sqrt{\frac{20}{36} }}$

$=\frac{1}{\sqrt{20}}$

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4 0

2 years ago

Lin’s road trip is 75 miles long. She has completed 20% of a trip so far. How many miles has Lin gone so far?

Lynna [10]

You're basically told that Lin has traveled 20% of 75. Since 20% is one fifth, she has traveled 75/5=15 miles so far.

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3 years ago

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Rama09 [41]

Answer:

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Step-by-step explanation:

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