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Tcecarenko [31]
2 years ago
9

An item has a listed price of $75. If the sales tax rate is 5%, how much is the sales tax (in dollars)?

Mathematics
1 answer:
Oxana [17]2 years ago
6 0

Answer:

3.75$

Step-by-step explanation:

because if you take 5 percent of the 75 thats what you get

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I need help simplifying -14 1/5-(-13 1/10)
xxMikexx [17]

Answer:

-141/5-(131/10)= -41.3

4 0
2 years ago
A water tank is in the shape of a cylinder with a diameter of 20 feet and a height of 20 feet. The tank is 70% full. About how m
fomenos

Answer:

32901 gallons

Step-by-step explanation:

First, we find the volume of the cylindrical water tank when it is full.

The volume of a cylinder is given as:

V = \pi r^2h

where r = radius and h = height of the cylinder

The diameter of the tank is 20 feet, hence, its radius is 10 feet.

Volume, V, is therefore:

V = \pi * 10^2*20 = 6283.19 ft^3

This is the volume of the tank, when it is full.

When it is 70% full, the volume will be:

\frac{70}{100} *  6283.19 = 4398.23 ft^3

1 cubic foot (ft^3) is 7.48 gallons.

Therefore, the volume of the 70% full tank in gallons will be:

4398.23 * 7.48 = 32901.05 gallons ≅ 32901 gallons

The tank contains 32901 gallons of water.

7 0
2 years ago
Read 2 more answers
If f(×)=2×^2+3, then which of the following represent f(-1)?
eimsori [14]

To find the inverse of this function, we first need to replace f(x) with y.

y = 2x^2 + 3

Now, we swap x and y

x = 2y^2 + 3

Now, we solve for y.

-3

x - 3 = 2y^2

Sqrt both sides.

√(x - 3) = 2y

Divide by 2

√(x - 3)/2 = y

Replace y with f^-1(x)

√(x - 3)/2 = f^-1(x)


Just realized you were asking for f(-1), not f^-1(x)

Feels bad.

f(-1) = 2(-1^2 + 3)

f(-1) = 2(-1^5)

f(-1) = 2(-1)

<u>f(-1) = -2</u>

I'm leaving the original answer in case you also need the inverse function. :)

3 0
3 years ago
If you’re good with permutations in math 30 please help and answer this easy question below real answers only
Len [333]

Answer:  d) 2730

<u>Step-by-step explanation:</u>

1st movie     and        2nd movie             and        3rd movie

15 videos       ×     14 remaining videos     ×     13 remaining videos = 2730

6 0
3 years ago
Please help I don’t understand this
Mazyrski [523]

Answer:

it’s right there

7 0
3 years ago
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