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2 years ago

The owner of a flower shop sells 18 roses for $90. What is the cost in dollars per rose?

2 answers:

7 0

$5.

Explanation:
if there are 18 roses and the total cost is $90, you would want to divide 90 by 18. 90 divided by 18 is 5, therefore the cost of each rose is $5

3241004551 [841]2 years ago

4 0

Answer:

Each flower cost an equivalent of $5 per flower. To get this answer you have to divide 90 by 18 to get the average cost of the flowers and stuff.

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Select the fraction that is equivalent to two sixths.

dybincka [34]

Answer:

four twelfths

Step-by-step explanation:

multiply by 2/2 to get 4/12

5 0

3 years ago

Read 2 more answers

If f(x)=ln(sin(2x)), f''(π/4) is equal to

Licemer1 [7]

Use the chain rule to compute the second derivative:

$f(x)=\ln(\sin(2x))$

The first derivative is

$f'(x)=(\ln(\sin(2x)))'=\dfrac{(\sin(2x))'}{\sin(2x)}=\dfrac{\cos(2x)(2x)'}{\sin(2x)}=\dfrac{2\cos(2x)}{\sin(2x)}$

$f'(x)=2\cot(2x)$

Then the second derivative is

$f''(x)=(2\cot(2x))'=-2\csc^2(2x)(2x)'$

$f''(x)=-4\csc^2(2x)$

Then plug in π/4 for <em>x</em> :

$f''\left(\dfrac\pi4\right)=-4\csc^2\left(\dfrac{2\pi}4\right)=-4$

4 0

3 years ago

I need help with Standard Deviation!

Naily [24]

<span>A: The middle 95% contain between 23.8 and 24.2 oz.(2 SDs under and over the mean) B: Approximately 68% of boxes have between 23.9 and 24.1 oz of cereal (1 SD under and over the mean) C: 2.5% of boxes contain more than 24.2, because 95% are within 2 SDs, and that includes lower and higher extremes. D: 16% of boxes have more than 24.1, because 68% are within 1 SD of the mean, so 32 are left, and that includes lower and higher extremes.</span>

3 0

2 years ago

A laptop is in the shape of a rectangular prism. The laptop has a length of 14 inches, a width of 10 inches, and a height of 1 i

Aleks04 [339]

Answer:

140 inches

Step-by-step explanation:

The formula for volume or a rectangular prism is v=lwh

Length = 14

Width= 10

Height= 1

Multiplying them together gives you the volume which is 140

6 0

3 years ago

Record this number in standard form: twenty-five thousand, four hundred fifty

bogdanovich [222]

Hi!

25 thousand

4 hundred

<h3>25,000 + 400 + 50 = 25,450</h3><h2>The answer is 25,450</h2>

Hope this helped you! :)

-Peredhel

4 0

3 years ago