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4 years ago

I need some help!! can someone help me?

Mathematics

1 answer:

ahrayia [7]4 years ago

3 0

Answer: It would be either 191% if it was counting each cube as a percent or as a normal percentage it would be 95.5%

Step-by-step explanation: I also noticed you are playing roblox XD, what's ur username I'd like to friend you, mine is Dogfacezombie.

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Kim rented skates for h hours. The rental fee was $2 per hour and she paid a total of $8

kow [346]

Answer:

Kim rented the skates for 4 hours.

Step-by-step explanation:

8 divided by 2 is 4.

5 0

3 years ago

A company uses paper cups shaped like cones for its water cooler. Each cup has a height of 12 cm, and the base has a radius of 5

Alex

Answer:

16.65 cups

Step-by-step explanation:

Step one:

height =12 cm, and

the base has a radius =5.5 cm

Volume of the cup = πr^2h

substitute we have

volume= 3.142*5.5^2*12

volume= 3.142*30.25*12

volume=1140.546cm^3

Step two:

volume of cooler= 18,997 cm^3

hence the number of cups to fill it is

=18,997/1140.546

=16.65 cups

4 0

3 years ago

Find the vertex and axis of symmetry for f(x)=2x^2-1

vfiekz [6]

<h3>Axis of symmetry is 0 and vertex is (0, -1)</h3>

Solution:

Given is:

$f(x) = 2x^2 - 1$

We have to find the vertex and axis of symmetry

The general equation is given as:

$f(x) = ax^2 + bx + c$

Comparing with given equation,

a = 2

b = 0

c = -1

The axis of symmetry is given as:

$x = \frac{-b}{2a}$

$x = \frac{0}{2(2)}\\\\x = 0$

Thus axis of symmetry is 0

The x coordinate of the vertex is the same

x coordinate of the vertex = 0

h = 0

The y coordinate of the vertex is:

k = f(h)

k = f(0)

$f(0) = 2(0) - 1\\\\f(0) = 0 - 1\\\\f(0) = -1$

Thus, y coordinate of the vertex is -1

Therefore, vertex is (0, -1)

3 0

3 years ago

the school cafeteria sells two kinds of wraps: vegetarian and chicken. the vegetarian wraps costs $1.00 and the chicken wrap cos

artcher [175]

Help on my most recent question

3 0

3 years ago

At a football game Jasmine bought a soft pretzel for $2.25 in a bottle of water for $1.50 she paid with a $5 bill how much thing

andrew11 [14]

Answer:

$1.25.

Step-by-step explanation:

We have been given that at a football game Jasmine bought a soft pretzel for $2.25 in a bottle of water for $1.50 she paid with a $5 bill.

First of all let us find how much Jasmine spent on soft pretzel and water bottle by adding the cost of both items.

$\text{Total amount spent on both items}=2.25+1.50$

$\text{Total amount spent on both items}=3.75$

To find the amount that Jasmine will get as a change we will subtract the amount spent on both items from 5.

$\text{Amount of change that Jasmine will get}=5-3.75$

$\text{Amount of change that Jasmine will get}=1.25$

Therefore, Jasmine will get $1.25 back as change.

3 0

3 years ago