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strojnjashka [21]
1 year ago
15

Just #35 please piecewise functions

Mathematics
1 answer:
saveliy_v [14]1 year ago
3 0

Answer: No, the friend is correct. In any function, each input value can only lead to one output value. When you input 3 for the x-values, you would get two output values because 3 is included in both equations. To fix this, you need to have the 3 not included in one of the equations.

For example, you could say y=\left \{ {{2x-2, x\leq 3} \atop {-3, x > 3}} \right. or y=\left \{ {{2x-2, x < 3} \atop {-3, x\geq 3}} \right. because the input value of 3 would not be included twice.

If you look at the attached screenshot, you will see that if you keep your friend's function, inputting 3 will result in two outputs of 4 and -3, so therefore, y=\left \{ {{2x-2,x\leq 3} \atop {-3,x\geq 3}} \right. cannot represent a piecewise function.

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MariettaO [177]

Answer:

1.The ratio of dogs to cats is 3 to 4

2. For every 3 dogs there are 4 cats.

Step-by-step explanation:

5 0
2 years ago
The cost for a pack of 8 padlocks is 19.20. Find the unit price in dollars per padlock. if necessary, round your answer to the n
muminat
19.2 / 8 = 2.4
$2.40 is your answer
5 0
3 years ago
A line with a slope of -8/3
strojnjashka [21]

Answer:

y = - \frac{8}{3} x + 10

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mc + c ( m is the slope and c the y- intercept )

Here m = - \frac{8}{3} and crosses the y- axis at (0, 10 ) ⇒ c = 10

y = - \frac{8}{3} x + 10 ← equation of line

7 0
2 years ago
What's 93 divided by 4 and need work to prove that I did it
luda_lava [24]
93/4

9/4=2r1

13/4=4r1

10/4=2r2

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4 0
3 years ago
Match the solid figure to the appropriate formula.
AlekseyPX

1. L \cdot A=\pi r l        -       Cone

2. V=\frac{4}{3} \pi r^{3}         -        Sphere

3. T \cdot A=2 \pi r h+2 \pi r^{2} - Cylinder

4. V=\frac{1}{3} B h         -        Pyramid

5. L . A=p h         -        Prism

Solution:

1. L \cdot A=\pi r l

Lateral surface area of cone = \pi r l

where r is the radius of the cone and l is the slant height of the cone.

2. V=\frac{4}{3} \pi r^{3}

Volume of sphere = \frac{4}{3} \pi r^{3}

where r is the radius of the sphere.

3. T \cdot A=2 \pi r h+2 \pi r^{2}

Total surface area of cylinder = 2 \pi r h+2 \pi r^{2}

where r is the radius of the cylinder and h is the height of the cylinder.

4. V=\frac{1}{3} B h

Volume of pyramid = \frac{1}{3} B h

where B is the base area of the pyramid and h is the height of the pyramid.

5. L . A=p h

Lateral surface area of prism = p h

where p is the perimeter of the base and h is the height of the prism.

4 0
3 years ago
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