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3 years ago

Will give BRAINLIEST!!

Mathematics

2 answers:

andrew11 [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Grace [21]3 years ago

4 0

Answer:

its b i need 2 more brainliest to rank up

Step-by-step explanation:

You might be interested in

Eduardo is planning to purchase a 50" flat-screen TV at The Electronics Hut. If the

meriva

Answer:

Sales tax=31.16, total price=359.16

Step-by-step explanation:

Price x sales tax rate -=sales tax

328 x .095(9.5%)=31.16 sales tax

price + sales tax = total price

328 + 31.16=359.16

3 0

2 years ago

Whats the absolute vaule of -1 1/3

Phoenix [80]

Answer:

1 1/3

Step-by-step explanation:

Absolute values are how far away it is from 0, so it is always positive. It is always the positive number of itself, so absolute values of negative numbers are the opposite, and the absolute value of positive numbers and just the same numbers.

5 0

3 years ago

Read 2 more answers

carter deposited $70 in a savings account earning 10% interest ,compounded anually. Write the equation

solniwko [45]

Equation for what? Amount after so and so number of years?

If so, then A = $70(1+0.10)^t, where t is the # of years.

3 0

3 years ago

Read 2 more answers

What is 18.5% of 500?<br> 9.25<br> 92.5<br> 925<br> 0.925

Lady bird [3.3K]

Answer:

92.5

Step-by-step explanation:

$\frac{18.5}{100} = \frac{x}{500}$

cross multiply:

18.5 · 500 = 9250

100 · x = 100x

isolate x by dividing 100 from both sides:

x = 92.5

hope this helps!

3 0

2 years ago

Read 2 more answers

Please show step by step of working out the value of r for which is A minimum and calculate the minimum surface area of the cont

Genrish500 [490]

Answer:

A = 59.63cm^2

Step-by-step explanation:

You have the following function for the surface area of the container:

$A=\pi r^2+\frac{100}{r}$ (1)

where r is the radius of the cross sectional area of the container.

In order to find the minimum surface are you first calculate the derivative of A respect to r, to find the value of r that makes the surface area a minimum.

$\frac{dA}{dr}=\frac{d}{dr}[\pi r^2+\frac{100}{r}]\\\\\frac{dA}{dr}=2\pi r-\frac{100}{r^2}$ (2)

Next, you equal the expression (2) to zero and solve for r:

$2\pi r-\frac{100}{r^2}=0\\\\2\pi r=\frac{100}{r^2}\\\\r^3=\frac{50}{\pi}\\\\r=(\frac{50}{\pi})^{1/3}$

Finally, you replace the previous result in the equation (1):

$A=\pi (\frac{50}{\pi})^{2/3}+\frac{100}{(\frac{50}{\pi})^{1/3}}}$

$A=59.63$

The minimum total surface area is 59.63cm^2

3 0

3 years ago