3 years ago

QUETSION 6 PLS HELP MEE

Mathematics

1 answer:

Alborosie3 years ago

5 0

Answer:

x= -15

Step-by-step explanation:

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The selling price of an item is $650. It is marked down by 20%, but this sale price is still marked up from the cost of $400. Fi

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Answer: 10%×$650=$585

$585-$450=$135 Mark up.

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3 years ago

Prove that f(x)=x+3/2 and g(x)=2x-3are inverse

goldfiish [28.3K]

Answer:

Proofs

Step-by-step explanation:

$f(x) = x + \frac{3}{2}$

$y = x + \frac{3}{2}$

$x = y + \frac{3}{2}$

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${f}^{ - 1} (x) = x - \frac{3}{2}$

They are not inverse because f^-1(x) = x - 3/2 is not the inverse to g(x) = 2x - 3.

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3 years ago

What is the domain of the given function?<br><br> {(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}

mihalych1998 [28]

Hey Kiddo.

The domain is the first number of each set.
Domain, 3, 6, -1, 5, -4

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3 years ago

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What is the solution to the system of equations?

kobusy [5.1K]

Answer:

The solution I got is (4,2)

Step-by-step explanation:

When I plotted the equations on a graph, they intercepted at (4,2).

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3 years ago

A rectangle has dimensions of 12 cm long and 10 cm wide what is the area of the rectangle

LiRa [457]

The area and the width are known as 60 and 12 respectively. Rearranging that equation above, and plugging the values, one gets the value of the length of the rectangle as 5.

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3 years ago