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Lena [83]
3 years ago
6

Is this graph a function?

Mathematics
1 answer:
inysia [295]3 years ago
8 0
Sur it's a function because for each x value corresponds one and only one y value.

Another easy way to determine if y is a function is to apply the vertical test:

If you draw a vertical line and this lines intersects the graph in one point, then y is a function

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Solve the equation<br>a) 4 + 3k = 4k - 2​
Shtirlitz [24]

Answer: k = 6

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

brainliest or a thank u pls

5 0
3 years ago
PLZ HELPPPPPPP ASAPPPP
kiruha [24]

Answer:

I have no clue. I think it is -0.40 if I remember correctly.

3 0
3 years ago
Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the s
Furkat [3]

Answer:

\frac{16\pi}{3}.

Step-by-step explanation:

I graphed the region in the image below. The blue line is y=3, the purple line is x=1 and the green curve is y = 4x-x^{2}. The shaded region in blue is the region we are going to rotate.

Now, to find the volume  v= 2\pi \int\limits^a_b {p(x)h(x)} \, dx where a=1, b=3 (left and right points of the region), p(x) is the distance from the rotation axis to the diferential Δx, we say p(x)=x and h(x) is the height of the region, in this case is h(x)= 4x-x^{2}-3. Then,

v =  2\pi \int\limits^1_3 {x(4x-x^{2}-3)} \, dx

=  2\pi \int\limits^1_3 {4x^{2}-x^{3}-3x} \, dx

= 2\pi (\frac{4x^{3}}{3}-\frac{x^{4}}{4}-\frac{3x^{2}}{2})^{3}_1

= 2\pi (36-\frac{81}{4}-\frac{27}{2}-\frac{4}{3}+\frac{1}{4}+\frac{3}{2})

= 2\pi*\frac{8}{3}

=  \frac{16\pi}{3}.

8 0
3 years ago
13 out of 25 people agreed to help at a charity event. What percentage is
erastova [34]

Answer:

Hi! The correct answer is 3.25, 7.6 and 0.3!

Step-by-step explanation:

8 0
3 years ago
Add or subtract. write in simplest form 21/9+74/9=
motikmotik
21/9 + 74/9 = (21 + 74)/9 = 95/9 = 10 5/9
5 0
3 years ago
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