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3 years ago

If 20 divided by 5 = 4 Then 20 divided by 5.5=4.?

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

Step-by-step explanation:

20 divided by 5.5 is a decimal 3.63

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Which of the following would be an acceptable first step in simplifying the expression sinx/1-sinx

Paha777 [63]

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$\bf \cfrac{sin(x)}{1-sin(x)}\implies \cfrac{sin(x)}{1-sin(x)}\cdot \cfrac{1+sin(x)}{1+sin(x)}\implies \stackrel{first~step}{\cfrac{sin(x)[1+sin(x)]}{[1-sin(x)][1+sin(x)]}}
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8 0

3 years ago

Read 2 more answers

What is the exact volume of a sphere with a diameter of 36 in.?

Contact [7]

The volume of a sphere:
$V=\frac{4}{3} \pi r^3$
r - the radius

The diameter is twice the radius.
$d=36 \ in \\
r=\frac{36}{2} \ in = 18 \ in \\ \\
V=\frac{4}{3} \pi \times 18^3=\frac{4}{3}\pi \times 5832=\frac{23328}{3} \pi=7776\pi \ [in^3]$

The exact volume of the sphere is 7776π in³.

5 0

3 years ago

What is the volume of this sphere?

Natasha_Volkova [10]

Answer:

Option c. 11,488.21 cm3

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

The volume of the sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$r=28/2=14\ cm$ ---> the radius is half the diameter

$\pi =3.14$

substitute

$V=\frac{4}{3}(3.14)(14)^{3}$

$V=11,488.21\ cm^3$

3 0

3 years ago

Help me solve this equation please

Sladkaya [172]

The answer to this one is W=-3/5 I think

4 0

3 years ago

The campus bookstore knows from the past several semesters that a certain elementary statistics book has a demand that is approx

Likurg_2 [28]

Answer:

$117

Step-by-step explanation:

Given that:

They buy these books for $105 each and sell them to unsuspecting undergraduates at $222 each

Marginal Profit = Marginal Revenue – Marginal Cost.

Marginal Profit = $222 - $105

Marginal Profit = $117

the marginal profit for a single elementary statistics book $117

For the remaining unsold books in the middle of the semester he bundles them up and sells to vendor in another country for $40 each for which he suffers a marginal loss of $105 - $40 = $65 each

5 0

3 years ago