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4 years ago

How can you tell that both f(x) and g(x) are functions

Mathematics

1 answer:

egoroff_w [7]4 years ago

3 0

Answer:

Step-by-step explanation:

You will compose the functions (that is, plug x into one function, plug that function into the inverse function, and then simplify) and verify that you end up with just "x". Here's what it looks like: Determine algebraically whether f (x) = 3x – 2 and g(x) = (x + 2)/3 are inverses of each other.

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A square has a maximum

Stolb23 [73]

Answer:

Step-by-step explanation:

Square: 4 equal sides

If x is one of the sides:

Perimeter: 4x

12: 4x

x=3

7 0

3 years ago

An airplane with room for 100 passengers has a total baggage limit of 6000 lb. Suppose that the total weight of the baggage chec

antoniya [11.8K]

Answer:

The approximate probability that the total weight of their baggage

$P (\bar x >60) = 0.000$

Step-by-step explanation:

Given data;

number of passenger is 100

baggage limit = 6000 lb

standard deviation = 19 lb

mean value = 49

For 100 passengers baggage limit is 6000 lb

so, average weight for per passenger > 60

$P (\bar x >60)$

As mean value is 49, therefore $P (\bar x >60)$ lie on right side center

z is given as

$z = \frac{ \bar x \mu}{\sigma_{\bar x}}$

$z = \frac{60 - 49}{\frac{\sigma}{\sqrt n}}$

$z = \frac{60 - 49}{\frac{19}{\sqrt {100}}} = 5.79$

$P(Z>5.79) = AREA to the right of 5.79$

$P (\bar x>60) = P (Z>5.79) = 1 -P (Z < 5.79)$

= 1 -P (Z < 5.79)

= 1 - 1.0000

= 0.000

$P (\bar x >60) = 0.000$

6 0

3 years ago

Tony's club is selling oranges to raise money .For e

damaskus [11]

Let x = the number of boxes they need to sell to get to 180
(1 1/8) * x + 75*(1 1/8) = 180 There's a number of ways you could solve this. I think the easiest way (or the easiest to explain) is to start by converting 1 1/8 to a decimal

1/8 = 0.125
1 1/8 = 1 + 0.125
1 1/8 = 1.125 Put this result in the equation.
1.125x + 75 * 1.125 = 180
1.125x + 84.375 = 180 Subtract 84.375 on both sides.
1.125x = 180 - 84.375
1.125x = 96.625 Divide by 1.125
x = 96.625 / 1.125
x = 85

They must sell 85 more boxes to raise 180 dollars.

4 0

3 years ago

Read 2 more answers

The length of a classroom is 35 feet. What is the measurement in YARDS and<br>FEET? *

notsponge [240]

Answer:

35 feet or 11 $\frac{2}{3}$ or ≈11.67 yards.