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andrezito [222]
2 years ago
11

Which function has an inverse that is also a function?

Mathematics
1 answer:
aalyn [17]2 years ago
4 0

Answer: 1st, 3rd, and 4th functions

Step-by-step explanation:

Assuming k(x)=9x^2, all the other functions have inverses because they are linear, meaning they must be one-to-one.

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Tony buys 4kg of potatoes at £1.60 per kilogram and 2kg of onions at £1.80 per kilogram.
natali 33 [55]

Answer:

£10

Step-by-step explanation:

4 × 1.60 = 6.40

2× 1.80 = 3.60

6.40 + 3.60 = 10.00

3 0
3 years ago
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Use division to find the unit rate. <br><br> 45 buttons were needed to make 5 jackets.
frez [133]

Answer:

1 jacket  =  9 buttons

Step-by-step explanation:

45 ÷ 5 = 9

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What is the value of the y-coordinate of point A?
ycow [4]

Answer:

C.) sin(11pi/6)

Step-by-step explanation:

construct triangle with a side perpendicular to x-axis

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y=sin(-pi/6)

y=sin((-pi/6)+2pi)

y=sin(11pi/6)

8 0
3 years ago
El usuario se registra medio de una temperatura de 8 grados centígrados Sin embargo a las 22 horas la temperatura y ha bajado un
soldi70 [24.7K]

Answer:

La temperatura en estos momentos es -2 grados centígrados.

Step-by-step explanation:

Dado que conoces que había una temperatura de 8°C y que a las 22 horas esta ha bajado unos 10 grados, tienes que restar estos 10 grados de la temperatura inicial para saber cuál es la temperatura actual:

8-10=-2

De acuerdo a esto, la respuesta es que la temperatura en estos momentos es -2 grados centígrados.

5 0
3 years ago
Ava wants to figure out the average speed she is driving. She starts checking her car’s clock at mile marker 0. It takes her 4 m
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Answer:

4 minutes = mile mark 3

8 minutes = mile mark 6

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