3 years ago

Which statements accurately describe the function f(x) = 3√18^x? Check all that apply.

Mathematics

2 answers:

Stella [2.4K]3 years ago

5 0

A and C are correct.

Andreyy893 years ago

3 0

Answer:

the answer would be A,B,E

Step-by-step explanation:

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A sailboat travels 48 miles upstream in 6 hours and return back downstream in 4 hours. What is the speed of the boat in still wa

Kipish [7]

Let s be the speed of the boat in still water.
Let c be the speed of the current.
s - c = 48/6 = 8
s + c = 48/4 = 12
Adding the two equations, we get:
2s = 20
s = 10
The answer is 10 miles per hour.

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3 years ago

Find all the points having an x-coordinate of 4 whose distance from the point (-2,-1) is 10

Marta_Voda [28]

$A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\the\ distance\ between\ A\ and\ B:\\\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\A(-2;-1);\ B(4;\ y);\ d=10\\\\subtitute\\\\\sqrt{(4-(-2))^2+(y-(-1))^2}=10\\\\\sqrt{(4+2)^2+(y+1)^2}=10\\\\\sqrt{6^2+(y+1)^2}=10\\\\\sqrt{36+(y+1)^2}=10\ \ \ |square\ both\ sides\\\\36+(y+1)^2=10^2\\\\36+(y+1)^2=100\ \ \ |subtract\ 36\ from\ both\ sides\\\\(y+1)^2=64\iff y+1=-\sqrt{64}\ or\ y+1=\sqrt{64}\\\\y+1=-8\ or\ y+1=8\ \ \ \ |subtract\ 1\ from\ both\ sides\\\\y=-9\ or\ y=7$

$Answer:{\boxed{(4;-9)\ or\ (4;\ 7)}$

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3 years ago

What is -6+2(-2+8v-6v (what are the steps to it too?)

MAXImum [283]

-6-4+16v-12v
It is 4v-10

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3 years ago

What is the area of the figure above?

Amiraneli [1.4K]

Answer:

252 in.

Step-by-step explanation:

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Anastaziya [24]

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3 years ago

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