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4 years ago

The height of the house is 26 ft what is the height of each story

Mathematics

1 answer:

iren [92.7K]4 years ago

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The information needed isn't added, can you comment the info

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jamerra received a $3000 car loan .she plans on paying off the loan in 2 years ,jammerra will have paid $450 in interest .what i

tensa zangetsu [6.8K]

<span>Jammera received a $3000 car loan.
She’ll be paying this for 2 years with an interest of 450 dollars.
Let’s find out the interest rate that was charge to Jammera’s car loan.
=> 3 000 dollars * 0.5 = 1500, thus, we’re sure that the interest rate is less than 50%
=> Let’s try 25%
=> 3000 * .25 = 750 (interest rate is also less than 25%)
=> Let’s try 15%
=> 3000 x .15
=> 450 dollars
Thus, the interest rate is 15% for 2 years.</span>

5 0

3 years ago

he volume of a cone of radius r and height h is one-third the volume of a cylinder with the same radius and height. Does the su

antoniya [11.8K]

Answer:

The surface area of a cone of radius r and height h not equal to one-third the surface area of a cylinder with the same radius and height.

Relationship is $S_c=(\frac{\sqrt{(r+h)}}{2h})S_C$

Step-by-step explanation:

Given : The volume of a cone of radius r and height h is one-third the volume of a cylinder with the same radius and height.

To find : Does the surface area of a cone of radius r and height h equal one-third the surface area of a cylinder with the same radius and height?

If not, find the correct relationship. Exclude the bases of the cone and cylinder.

Solution :

Radius of cone and cylinder is 'r'.

Height of cone and cylinder is 'h'.

The volume of cone is $V_c=\frac{1}{3}\pi r^2 h$

The volume of cylinder is $V_C=\pi r^2 h$

$\frac{V_c}{V_C}=\frac{\frac{1}{3}\pi r^2 h}{\pi r^2 h}$

$V_c=\frac{1}{3}V_C$

i.e. volume of cone is one-third of the volume of cylinder.

Now,

Surface area of the cone is $S_c=\pi r\sqrt{(r+h)}$

Surface area of the cylinder is $S_C=2\pi rh$

Dividing both the equations,

$\frac{S_c}{S_C}=\frac{\pi r\sqrt{(r+h)}}{2\pi rh}$

$\frac{S_c}{S_C}=\frac{\sqrt{(r+h)}}{2h}$

$S_c=(\frac{\sqrt{(r+h)}}{2h})S_C$

Which clearly means $S_c\neq \frac{1}{3}S_C$

i.e. The surface area of a cone of radius r and height h not equal to one-third the surface area of a cylinder with the same radius and height.

The relationship between them is

$S_c=(\frac{\sqrt{(r+h)}}{2h})S_C$

4 0

3 years ago

Tyrone is converting 40/50 to a percent. Which method should he use to find the percent?

alex41 [277]

Answer: A

Step-by-step explanation:

6 0

4 years ago

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