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3 years ago

In the document can someone please help me understand it

Mathematics

1 answer:

V125BC [204]3 years ago

7 0

Answer: I see two people typing, so...

Step-by-step explanation:

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Please help ASAP PL u will get 15 points and brainliest

inysia [295]

To be a function each different x value would have a different Y value.

First one is a function, there are no repeated Y values.

The second one is a function.

Third one is not a function because it has two identical Y values with different x values.

The fourth one is a function.

6 0

3 years ago

How do percents show the relationship between quantities?

Alik [6]

Answer: Decide whether two quantities are in a proportional relationship, by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin . Use proportional relationships to solve multistep ratio and percent problems.

Step-by-step explanation:

6 0

2 years ago

How do you rewrite expressions using a positive exponent when the exponent originally attached is negative/fraction?

aleksley [76]

Answer:

Step-by-step explanation:

Take the negative exponent in the denominator to make it positive

Example = (2^-3)

= 1/2³

7 0

3 years ago

If x=2 and y=3 what is 7x+y+16

Vinvika [58]

Answer: 33

Step-by-step explanation:

Input the numbers into the variables.
7(2) + 3 + 16

14 + 3 + 16

17 + 16

3 0

2 years ago

Verify identity list steps. Cot(t)(1-cos^2(t))=cos(t)sin(t)

storchak [24]

Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)

You should already know this:

$\huge{Cot(t) = \frac{1}{tan(t)} = \frac{1}{\frac{sin(t)}{cos(t)}} = 1\div \frac{sin(t)}{cos(t)} = 1\times \frac{cos(t)}{sin(t)}=\boxed{\frac{cos(t)}{sin(t)}}$

You should also know this:

$sin^2(t) + cos^2(t) = 1\\\\\boxed{sin^2(t)} = 1 - cos^2(t)$

So plugging in both of those into our identity, we get:

$\frac{cos(t)}{sin(t)}\cdot sin^2(t) = cos(t)\cdot sin(t)$

Simplify the denominator on the LHS (Left Hand Side)

We get:

$cos(t) \cdot sin(t) = cos(t) \cdot sin(t)$

LHS = RHS

Therefore, identity is verified.

4 0

3 years ago