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4 years ago

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Caroline has a % chance of receiving an A grade in statistics, a % chance of receiving an A grade in geology, and a % chance of

receiving an A grade in statistics or geology (or both). Find the probability that she receives A grades in both statistics and geology.

1 answer:

jeka944 years ago

4 0

Answer:

idk

Step-by-step explanation:

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Find the average rate of change of a function that contains the points (-2,3) and (2,5).

boyakko [2]

The slope or rate of change would be 1/2

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4 years ago

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Using V = lwh, what is an expression for the volume of the following prism? The dimensions of a prism are shown. The height is S

Lubov Fominskaja [6]

<h2>Explanation:</h2><h2></h2>

We know that the volume of a prism is defined by:

$V=lwh \\ \\ \\ Where: \\ \\ l:length \\ \\ w:width \\ \\ h:height \\ \\ \\ l=\frac{d-2}{3d-9} \\ \\ w=\frac{4}{d-4} \\ \\ h=\frac{2d-6}{2d-4}$

Substituting values:

$V=\left(\frac{d-2}{3d-9}\right)\left(\frac{4}{d-4}\right)\left(\frac{2d-6}{2d-4}\right) \\ \\ \\ Simplifying: \\ \\ V=\frac{d-2}{3d-9}\cdot \frac{4}{d-4}\cdot \frac{d-3}{d-2} \\ \\ V=\frac{\left(d-2\right)\cdot \:4\left(d-3\right)}{\left(3d-9\right)\left(d-4\right)\left(d-2\right)} \\ \\ V=\frac{4\left(d-3\right)}{\left(3d-9\right)\left(d-4\right)} \\ \\ V=\frac{4\left(d-3\right)}{3\left(d-3\right)\left(d-4\right)}$

$Finally: \\ \\ \boxed{V=\frac{4}{3\left(d-4\right)}}$

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3 years ago

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dlinn [17]

Answer:

12

Step-by-step explanation:

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juin [17]

20$ and it weighs 28 pounds

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3 years ago

7. Find the measure of the angle of elevation of the sun when a boy 5 feet tall cast's a shadow

Alecsey [184]

Answer:

$45\degree$

Step-by-step explanation:

We use trigonometry to find the angle of elevation.

From the diagram, the angle of elevation of the sun is $\angle A$

Recall the mnemonics SOH CAH TOA.

$\tan A=\frac{Opposite}{Adjacent}$

$\tan A=\frac{5}{5}$

$\tan A=1$

$A=\tan^-1{1}=45\degree$

Therefore the angle of elevation of the sun is $45\degree$

See attachment

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3 years ago