Answer:
the answer is 8500 as 4 is not greater than or equal to 5

check your calculator for the [!] factorial button.
also bear in mind that most calculators also have an [ₙPᵣ] button, to get Permuations, and you can just use that.
Answer:
√2·3^√2
Step-by-step explanation:
Step: Solvey=2x+13for y:
y=2x+13
Step: Substitute2x+13foryinx−y=4:
x−y=4
x−(2x+13)=4
−x−13=4(Simplify both sides of the equation)
−x−13+13=4+13(Add 13 to both sides)
−x=17
−x−1=17−1(Divide both sides by -1)
x=−17
Step: Substitute−17forxiny=2x+13:
y=2x+13
y=(2)(−17)+13
y=−21(Simplify both sides of the equation)
D (Bottom Circle)
(-17,-21)