A reference sheet given with an exam indicated the following formula for the surface area of a cone.

Mathematics

1 answer:

scZoUnD [109]3 years ago

8 0

Answer:

Using the given formula, the calculated surface area would be in cubic units instead of square units.

Step-by-step explanation:

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jeordie spreads out a recctangular picnic blanket with an area of 42 square feet. its width is 6 feet . which equation coud you

DochEvi [55]

Answer:

6x = 42

Step-by-step explanation:

The formula to find the area of a rectangle is $A = LxW$ . Since we have a value for the width, we simply need to find what to multiply to 6 to get 42.

Let x = length

6x = 42

We then divide both sides by 6 to find the value of x.

$\dfrac{6x}{6}=\dfrac{42}{6}$

$x=7$

So we know the length is 7.

To check the answer we substitute x with 7.

$6(7)=42$

$42=42$

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3 years ago

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Answer:

4(7y - 9)

Step-by-step explanation:

The greatest common factor you can factor out of both monomials is 4.

28y - 36

4(7y - 9)

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3 years ago

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Can anyone help me solve a trigonomic identity problem and also help me how to do it step by step?

dusya [7]

$\bf cot(\theta)=\cfrac{cos(\theta)}{sin(\theta)}
\qquad csc(\theta)=\cfrac{1}{sin(\theta)}
\\\\\\
sin^2(\theta)+cos^2(\theta)=1\\\\
-------------------------------\\\\$

$\bf \cfrac{cos(\theta )cot(\theta )}{1-sin(\theta )}-1=csc(\theta )\\\\
-------------------------------\\\\
\cfrac{cos(\theta )\cdot \frac{cos(\theta )}{sin(\theta )}}{1-sin(\theta )}-1\implies \cfrac{\frac{cos^2(\theta )}{sin(\theta )}}{\frac{1-sin(\theta )}{1}}-1\implies 
\cfrac{cos^2(\theta )}{sin(\theta )}\cdot \cfrac{1}{1-sin(\theta )}-1
\\\\\\
\cfrac{cos^2(\theta )}{sin(\theta )[1-sin(\theta )]}-1\implies 
\cfrac{cos^2(\theta )-1[sin(\theta )[1-sin(\theta )]]}{sin(\theta )[1-sin(\theta )]}$

$\bf \cfrac{cos^2(\theta )-1[sin(\theta )-sin^2(\theta )]}{sin(\theta )[1-sin(\theta )]}\implies \cfrac{cos^2(\theta )-sin(\theta )+sin^2(\theta )}{sin(\theta )[1-sin(\theta )]}
\\\\\\
\cfrac{cos^2(\theta )+sin^2(\theta )-sin(\theta )}{sin(\theta )[1-sin(\theta )]}\implies \cfrac{\underline{1-sin(\theta )}}{sin(\theta )\underline{[1-sin(\theta )]}}
\\\\\\
\cfrac{1}{sin(\theta )}\implies csc(\theta )$

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3 years ago

A pitcher throws a 9 kg baseball in a straight line. Its momentum is 2.1 kg-m/s. What is the velocity of the

Zina [86]

Answer:

$0.23\:\mathrm{m/s}$