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r-ruslan [8.4K]
2 years ago
6

Y=x3 is that a function?

Mathematics
1 answer:
kotykmax [81]2 years ago
5 0

Answer:

yes

Step-by-step explanation:

y(x) is even or odd according as y(−x)=±y(x) . Here, #y(-x)=-(-x)^3=-(-x^3)=x^3=-y(x). So, y is an odd function of x.

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3. If Juan purchased three 24-ounce cans of motor oil for $10.80, how much did he pay per ounce?
Zina [86]

Answer: the answer is c) $.45

Step-by-step explanation:  to find out how much per ounce, you need to divide the price by the quantity. so 10.80/24=.45

8 0
3 years ago
The diagram shows the entrance to a tunnel.
gladu [14]

Step-by-step explanation:

it filled up half the circle (up to the center point) - if we had a full circle. but a little bit is cut off (below AB).

what we see is that the shaded area is the sum of the area of the triangle AOB and 2 equally sized circle segment areas left and right of AOB.

since we are dealing with a half-circle, we have 180° in total. 120° are taken by AOB, so, that leaves us with 180-120 = 60° for both circle segments (so, one has an angle of 30°).

and 2×30° = 1×60°, so we can calculate the area of one 60° segment instead of two 30° segments.

AOB is an isoceles triangle (the legs are equally long, and therefore also the 2 side angles are equal).

the area of this triangle AOB is

1/2 × a × b × sin(C) = 1/2 × 3 × 3 × sin(120) =

= 3.897114317... m²

a circle segment area of 60° is 60/360 = 1/6 of the full circle area (as a full circle = 360°).

so, it's area is

pi×r² × 1/6 = pi×3²/6 = pi×3/2 = 4.71238898... m²

so, the total area of the shaded area is

3.897114317... m² + 4.71238898... m² =

= 8.609503297... m²

5 0
2 years ago
PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!!
Lisa [10]

Answer:

1. if x + 5 = 12, then x = 7

<u>:Subtraction property of equality</u>

2. If x + y = 20, and y = 5, then x + 5 = 20.

<u>:Substitution property of equality</u>

3. If 2x3 = 11, then 11 = 2x - 3.

<u>:Symmetric property of equality</u>

8 0
2 years ago
Please help me AND ALSO PLEASE EXPLAIN HOW YOU WORKED IT OUT thank you.
lesya692 [45]
128, -512, 2048
Multiply by -4 to get each new term
4 0
3 years ago
2x - 3y = 8<br><br> -2x + 6y = -20<br><br> x = ?<br><br> y = ?<br><br> solve the system of equations
Zolol [24]

Answer:

x = 4 + 3/2y

y = -8/3 + 2/3x

1. Finding X

2x-3y=8

2x=8+3y

x+4+3/2y

2. Finding Y

2x-3y=8

-3y=8-2x

y=-8/3+2/3x

7 0
3 years ago
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