Answer:
0
Step-by-step explanation:
So we have the expression:
And we want to evaluate it for x=-4 and y=8.
So, substitute:
Multiply:
Add:
Evaluate:
So, our answer is 0.
And we're done!
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.
Answer:
=5x⁴+3x
=-2x+4
=8x+4
=-2x-4
Step-by-step explanation:
hope it's help
Answer:
D
Step-by-step explanation:
A function is where each input (here, the input is x) corresponds to exactly one output (here, the output is y). In other words, if a function is graphed, we should be able to draw a vertical line through every single part of it that will intersect it at only one place.
Let's examine each choice.
(A) Well, if we draw a vertical line through the graph, it will obviously intersect the entire line - which is an infinite number of intersections, so this is not a function.
(B) If we draw a vertical line through the portion of the graph that lies near the positive x-axis, we note that it will intersect twice, so this is not a function.
(C) If we strategically draw a vertical line through the y-axis, we see it will intersect two times, so this is not a function.
(D) We can draw a vertical line through any portion of this graph and know that it will only intersect once.
Therefore, the answer is D.
Answer:
Option B. 2.75
Step-by-step explanation:
It has been given in the question that a wedge has a width of 2 cm and a slope of 5.5 cm.We have to calculate the mechanical advantage of the given wedge.
We know the formula to calculate the mechanical advantage of the wedge
Mechanical advantage = Length of slope/Thickness of the widest end
= 5.5÷2 = 2.75
Therefore the answer is option B. 2.75
