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4 years ago

Also help with this graph please

Mathematics

1 answer:

hram777 [196]4 years ago

7 0

Letter d, closed circle means that it includes the number it is on, in this case -3. and sonce the arrow is going to the left that means x has to be less than -3

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Solvex3 + x2 – 1 = 0, correct to three decimal places by using fixed point iteration method.

Finger [1]

Answer:

x3 + x2 - 1 = ( x 2 + 1) ( x + 1)

Step-by-step explanation:

8 0

3 years ago

PLZ HELP/...... :) :?

alexdok [17]

Answer:

3 gallons of diesel weight = 22.2 pounds

The constant of variation = 7.4

The quantities vary directly

Step-by-step explanation:

Given:

5 gallons of gas weights = 37 pounds

To find

a) the weight of 3 gallons of gas.

b) if the quantities vary directly or inversely.

c) the constant of variation.

Solution:

Applying unitary method to find weight of 3 gallons of gas.

If 5 gallons weight = 37 pounds

Then, 1 gallon will weight = $\frac{37}{5}$ =7.4 pounds

Thus, 3 gallons will weight = $3\times 7.4$ = 22.2 pounds

Listing out the data we have:

1 gallon = 7.4 pounds

3 gallons = 22.2 pounds

5 gallons = 37 pounds

From the data, we find out that as the number of gallons of gas increases the weight of gas also increases. This shows that these quantities are directly proportional to each other.

The unit rate of the quantities is called the constant of variation.

Unit rate: 7.4 pounds per gallon

Thus, the constant of variation = 7.4

8 0

3 years ago

#6 is the question, are these two functions inverse’s

olya-2409 [2.1K]

I will find the inverse function of f(n) to see if it is g(n).

$f(n) = 2(n - 2)^3$

$y = 2(x - 2)^3$

$x = 2(y - 2)^3$

$(y - 2)^3 = \dfrac{x}{2}$

$y - 2 = \sqrt[3]{\dfrac{x}{2}}$

$y = \sqrt[3]{\dfrac{x}{2}} + 2$

$y = \sqrt[3]{ \dfrac{x}{2} } \times \sqrt[3]{ \dfrac{4}{4}} + 2$

$y = \sqrt[3]{\dfrac{4x}{8}} + 2$

$y = \dfrac{ \sqrt[3]{4x }}{2} + 2$

$g(n) = \dfrac{\sqrt[3]{4n}} {2} + 2$

The inverse function of f(n) is indeed g(n), so f(n) and g(n) are inverse functions.

8 0

3 years ago

Which graph represents y = cosine (2 x minus pi) + 5?

Artyom0805 [142]

Answer:

Step-by-step explanation:

edgenuity

5 0

3 years ago

it takes a baseball team 2 hours to complete a game.how long will it take to complete 2/3 of the game.

natima [27]

2 hours is 120 minutes
120 min * 2/3 is 80 minutes

5 0

3 years ago

Also help with this graph please​

Also help with this graph please