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3 years ago

Is y= -2 a function? Someone please help me ✌️✨

Mathematics

2 answers:

o-na [289]3 years ago

5 0

Answer:

Step-by-step explanation:

A function is defined as a set of outputs based on a set of inputs.

This means that we need to have two variables in order for this to be a function.

y needs to change as we input different values of x.

However, there are no x values here! It's just a simple line.

Therefore this is not a function.

Hope this helped!

lisov135 [29]3 years ago

3 0

Answer:

no it's not

hope it helps;)

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Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

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3 years ago

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sergiy2304 [10]

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2 years ago

Which identity is the result of using the Pythagorean theorem to show that a triangle with side lengths

disa [49]

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3 years ago

Solve (2x-1/4)+(x/3)=2<br> Please provide a step by step with explanation

andrew11 [14]

Answer:

x = 27/10 or x = 2.7

Step-by-step explanation:

Step 1: Get rid of the denominator.

LCD of 4 & 3: 12

Multiply both sides by 12.

12 ( 2x - 1 / 4 ) + 12 ( x / 3 ) = 12 (2)

Reduce the numbers.

3 ( 2x - 1) + 4x = 24

Step 2: Distribute.

6x - 3 + 4x = 24

Step 3: Collect like terms.

6x + 4x = 24 + 3 ( - 3, the sign change when moved to the other side)

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Step 4: Solve for x.

Multiply both sides by 10.

10x / 10 = 27 / 10 (the 10 cancels out)

x = 27 / 10 or x = 2.7

Answer: x = 27 / 10 or x = 2.7

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2 years ago

May someone help me with this question

Dafna11 [192]

X + 13 = -4
x = -4 - 13
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2 years ago