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3 years ago

9

Simplify x^2-4/x^2+4

1 answer:

STALIN [3.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

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Plz help I need help plz

dem82 [27]

Answer:

33/4 or 8 1/4

Step-by-step explanation:

-3 2/3 • (-2 1/4)

Step 1. Convert each into improper fractions
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-11/3 • (-9/4)

Step 2. Multiply
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99/12

Step 3. Simplify
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33/4 or 8 1/4

4 0

3 years ago

Find the derivative of y= 1 / x

givi [52]

Answer:

dy/dx = -1/ $x^{2}$

Step-by-step explanation:

y = 1/x

dy/dx = d/dx(1/x)

=> dy/dx = d/dx( $x^{-1}$ )

=> dy/dx = - $x^{-2}$

=> dy/dx = -1/ $x^{2}$

6 0

3 years ago

solniwko [45]

Answer:

$Cost = 112.266$ cent/km

Step-by-step explanation:

Given

$Unit\ cost = R17.82/litre$

$Rate = 6.3litre/100km$

Required

The fuel cost in $cent\ per\ km$

This is calculated using:

$Cost = Unit\ cost * Rate$

$Cost = R17.82/litre * 6.3litre/100km$

$Cost = R17.82 * 6.3/100km$

$Cost = R1.12266/km$

Multiply by $100$ to get the cost in cents

$Cost = 1.12266 * 100$ cent/km

$Cost = 112.266$ cent/km

6 0

3 years ago

What is the measure of each angle in the circle?<br><br> 30°<br> 90°<br> 72°<br> 60°

klio [65]

Answer:

72°

Step-by-step explanation:

The circle is divided into 5 parts.

A circle measures 360°.

360/5 = 72°

hope this helps!! p.s. i really need brainliest :)

6 0

2 years ago

Read 2 more answers

ludmilkaskok [199]

Answer: Yes

Step-by-step explanation:

Each value of y maps onto one value of x.

3 0

2 years ago