Well, to see if she can afford the skateboard, start by finding the discount and then finding the sales tax of that.
To find the discount, first find 15% of $139.99 and then subtract it since that's how much you're getting off.
<em>Remember: </em><em>to find percentage, convert the percentage into a decimal by dividing it by 100, and then multiplying it by what you're finding a percentage of. </em>
15% ÷ 100 = 0.15
$139.99 x 0.15 = 20.9985, which can be rounded up to $21.
$139.99 - 21 = 118.99.
Now that we have the discount, we find the sales tax, which can be found the same way as the discount, but we add it to the total instead fo subtracting it.
7% ÷ 100 = 0.07
0.07 x 118.99 8.3293 or $8.33
118.99 + 8.33 = 127.32
<em>This is the final total of how much the skateboard would cost.</em>
So:
No, she would not have enough money to buy the skateboard. With the discount alone, she could afford it, since $118 falls in her budget range, but with the added tax, it's 13 dollars over and she cannot afford the skateboard.
39/1.5 = 26 km per hour
51/3 = 17 km per hour
Then you need the mean. 26+17/2 = 21.5 km per hour
3 square root is called cube root btw:
cube root of -27/64 is the same as (cube root of -27)/(cube root of 64)
cube root of -27 is -3
cube root of 64 is 4
the anser is -3/4
The answer is 12. If you don’t understand then keep on multiplying 4 until you get a number that 6 will also go into
Answer:
f(x) = 3(x - 2)² + 4
OR
f(x) = 3x² - 12x + 16
Step-by-step explanation:
Vertex form of a parabola:
Standard form of a parabola:
Let's find the vertex of this parabola.
In order to find the a-value (vertex form), let's use another point besides the vertex on the parabola.
Using (3, 7) for (x, y), let's substitute this point and the vertex (2, 4) for (h, k) into the vertex form equation and solve for a.
Simplify using PEMDAS.
Subtract 4 from both sides.
Now we have (h, k) and a of the vertex form.
- y = a(x - h)² + k → y = 3(x - 2)² + 4
In order to convert from vertex to standard form, simplify the equation by FOILing.
Distribute 3 inside the parentheses.
Combine like terms.
Therefore, we have the answer:
<u>Vertex form:</u>
<u>Standard form:</u>
