Answer:
if this is what you are asking... all you have to do is post those exact coordinates on the graph. :)
Step-by-step explanation:
16: 10(-9) +4 = -90 +4 = -86
17. 7^2 - 7 = 49-7 = 42
18. -9^2 - -9 = 81+9 = 90
19. 10(5) +4 = 54, 3*54 = 162
20. 3*5 = 15, 10(15) +4 = 154
X^2 -(y^2-x-1). >>simplify
=x^2+ (-4)(y^2)+(-4)(-x)+(-4)(-1). >>>> distribute
= x^2 -4y^2 + 4x +4 >>>>answer
<span>Which expression can be used to determine the side length of the rhombus?
The answer is the first option: 10/Cos(30°) Explanation:
1. As you can see in the figure attached, there is a right triangle and its hypotenuse (which is represented with the letter "x") is the side you want to calculate. So, you have:
Cos(</span>α)=Adjacent leg/Hypotenuse
<span>
</span>α=30°
<span> Adjacent leg=(20 in)/2=10 in
Hypotenuse=x
2. When you substitute these values into the formula, you obtain:
</span>
Cos(α)=Adjacent leg/Hypotenuse
<span> Cos(30°)=10/x
3. Therefore, you obtain the expression to determine the side length of the rhombus by clearing the hypotenuse "x", as below:
x=10/Cos(30°)
</span>
If you would like to find the function that gives the profit Betty makes by selling glasses of lemonade, you can find this using the following steps:
p ... profit
g ... glasses of lemonade
p = g * $1 - $50
The correct result would be <span>p = g * $1 - $50.</span>