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4 years ago

Please help me and actually show me the work DONT write a whole explanation on how to do it please thank u

Mathematics

2 answers:

Alekssandra [29.7K]4 years ago

7 0

It’s B and I would do an explanation but Ig not

Jobisdone [24]4 years ago

5 0

Answer:

i thinks its b

Step-by-step explanation:

because you have to total minus the dimes wihich would be "d" then you have what "q" is which is how may quarters you have

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This is a series of 3 questions please answer :)

Anastasy [175]

1. The first one I think you would divide 8 from 64 n get 8 so thats 8%. Answer to that would be the Store.

2. You would!! 56%

3. Multiply 2.5 to 40 and 25. You need a denominator of 100. 62.5/100
So yes you did find at least 60%

I think I did this right. Hope it helps!

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3 years ago

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Mama dbdjd d did f dbjdbf ddbdnd

Blizzard [7]

Answer:

ah yes mama

Step-by-step explanation:

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3 years ago

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Which inequality statement describes the two numbers on a number line?

makvit [3.9K]

Answer:

Option C)

$-7$

Step-by-step explanation:

We are given the following in the question:

"-7 and a number 5 units to the right of -7"

The nubmer 5 units to the right of -7 will be:

$=-7 + 5\\=-2$

The number line shows the two marked points.

As observed from the number line, we can write the inequality:

$-7$

Thus, the correct option is

Option C)

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7 0

4 years ago

Read 2 more answers

Find the Derivative.<br> f(x) = -xcos3x

DENIUS [597]

Answer:

$\frac{d}{dx}(-xcos3x)= 3x \ sin(3x)- cos(3x)$

Step-by-step explanation:

Use the Product Rule for derivatives, which states that:

$\frac{d}{dx} =[f(x)g(x)]= f(x)g'(x)+f'(x)g(x)$

In the function we are given, $f(x)=-x \cos3x$ , we can break it up into two factors: -x is being multiplied by cos3x.

Now, we have the factors:

$-x \\ $cos 3x$

Before using the product rule, let's find the derivative of cos3x using the chain rule and the power rule.

$\frac{d}{dx}(cos3x)= \frac{d}{dx} (cos3x) \times \frac{d}{dx} (3x) \\ \frac{d}{dx}(cos3x)= (-sin3x) \times 3 \\ \frac{d}{dx} (cos3x) = -3sin(3x)$

Now let's apply the product rule to f(x) = -xcos3x.

$\frac{d}{dx}(-xcos3x)= (-x)(-3sin3x) + (-1)(cos3x)$

Simplify this equation.

$\frac{d}{dx}(-xcos3x)= (x)(3sin3x) - (cos3x)$

Multiply x and 3 together and remove the parentheses.

$\frac{d}{dx}(-xcos3x)= 3x \ sin(3x)- cos(3x)$

Therefore, this is the derivative of the function $f(x)=-xcos3x$ .

3 0

3 years ago

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Hunter-Best [27]

Z-score is computed by the equation below,
z-score = (x - μ) / σ
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3 years ago