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lesya692 [45]
2 years ago
13

Which of the following mappings represent a function? Group of answer choices

Mathematics
1 answer:
ZanzabumX [31]2 years ago
4 0

Answer:

The first one.

Step-by-step explanation:

A single x value in a relation cannot have more than one y value.

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If I bought shoes for 32.30 with 15% off 7%sales tax a 25dollar gift card but had a coupon that was forgotten for 5%off the orig
Otrada [13]

Answer:

 $4.37 cash outlay

 $29.37 total amount paid, partly with gift card

Step-by-step explanation:

The discount was ...

  0.15 × $32.30 = $4.845 ≈ $4.85

So the price to which tax is added is ...

  $32.30 -4.85 = $27.45

The amount of tax is 7% of this value, or ...

  tax = $27.45 × 0.07 = $1.9215 ≈ $1.92

So, payment is made on the amount ...

  $27.45 + 1.92 = $29.37

$29.37 is the total amount paid.

If $25 is paid using a gift card, then the cash outlay is $4.37.

_____

Usually only a single coupon can be applied to a given purchase. Since the 15% store discount exceeds the amount of the 5% coupon left at home, it makes more sense to claim the 15% store discount and save the 5% coupon for another time.

__

<em>Alternate interpretation</em>

If, by some magic, both discounts could be applied, then the amount to be paid is $27.65, of which $2.65 exceeds the gift card amount. The calculation proceeds the same way, except that 20% is used instead of 15%.

4 0
3 years ago
The graph of line p represents y =1/5 x-1 . If the slope of line p is multiplied by -10 to
Katarina [22]

Answer:

use desmos its a graphing caculator that gives you exaxt graphing answers

5 0
2 years ago
Joshua decided he did not want to study for the test so he randomly chose answers to a 5 question test. If each question had 4 a
Veronika [31]

Answer:

there is a 0.0009765625 in 1 chance that he got 100%.

Step-by-step explanation:

possibility of getting a question right: 1/4

# of questions: 5

(1/4)^5 is 0.0009765625

5 0
3 years ago
Solve the equation: X to the 4th power - 81=0
Musya8 [376]
x^4-81=0\\&#10;x^4=81\\&#10;x^4=3^4 \vee x^4=(-3)^4\\x=3 \vee x=-3
5 0
3 years ago
BRAINLIEST!!!
Papessa [141]
For the equation, the rate of change would be four.
Now looking at the graph, look at each point of the line that hits perfectly on a grid. Count up four, over two. The rate of change for the graph would be 4/2, or 2. Hope this helps!
4 0
3 years ago
Read 2 more answers
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