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Zinaida [17]
3 years ago
9

The sales tax for an item was $12.80 and it cost $320 before tax.

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

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Y = f(x) = 2^x
Virty [35]

Answer:

The value of f(x) when x=-1 is 0.5

Therefore f(-1)=0.5

Step-by-step explanation:

Given that y=f(x)=2^x

to find the f(x) when x=-1 :

That is to find f(-1)

Put x=-1 in the given function f(x)=2^x

f(-1)=2^{-1}

=\frac{1}{2}

=0.5

Therefore f(-1)=0.5

The value of f(x) when x=-1 is 0.5

3 0
3 years ago
WHATS THE MISSING SIDE PLEASE HURRY IM TIMED
svetoff [14.1K]

Answer: 6.40 = c

Step-by-step explanation:

a^2 + b^2 = c^2

5^2 + 4^2 = c^2

25 + 16 = c^2

41 = c^2

  ____

_/ 41  = c

6.40 = c

4 0
2 years ago
Parametrizations help needed
erica [24]
Sorry I don't know that either
6 0
3 years ago
A men's department store sells 3 different suit jackets, 6 different shirts, 8 different ties, and 4 different pairs of pants. h
Ksenya-84 [330]
Jackets = 3
Shirt = 6
Ties = 8
Pants = 4

Number of combination = 3 x 6 x 8 x 4 = 576

Answer: There are 576 possible combinations.
3 0
2 years ago
Which function has a vertex at the origin?
dlinn [17]

Answer:

  (d)  f(x) = -x²

Step-by-step explanation:

For the vertex of the quadratic function to be at the origin, both the x-term and the constant must be zero. That is, the function must be of the form ...

  f(x) = a(x -h)² +k . . . . . . . . . . vertex form; vertex at (h, k)

  f(x) = a(x -0)² +0 = ax² . . . . . vertex at the origin, (h, k) = (0, 0)

Of the offered answer choices, the only one with a vertex at the origin is ...

  f(x) = -x² . . . . . a=-1

6 0
1 year ago
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