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2 years ago

Which of the following functions f(x) represent the order pairs:

Mathematics

1 answer:

sdas [7]2 years ago

3 0

Answer:

B.f(x) = 3x-1

Step-by-step explanation:

{(-2,-7), (-1,-4), (0,-1), (1,2), (2,5) are solutions of f(x) = 3x-1

Plug in

(-2,-7): f(x) = 3(-2) -1 = -6 - 1 = -7

(-1,-4): f(x) = 3(-1) -1 = -3 - 1 = -4

(0,-1): f(x) = 3(0) -1 = - 1

(1,2): f(x) = 3(1) -1 = 3 - 1 = 2

(2,5): f(x) = 3(2) -1 = 6 - 1 = 5

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If two of these shapes are randomly chosen, one after the other without replacement, what is the probability that the first will

aleksandrvk [35]

Answer:

$P(T\ n\ S) = \frac{1}{14}$

Step-by-step explanation:

*Missing Part of the Question*

4 stars

5 triangles

3 circles

3 squares

Required

Determine the probability of triangle being first then square being second

$Total = 4 + 5 + 3 + 3$

$Total = 15$

Represent the triangle with T and square with S

So, we're solving for P(T n S)

$P(T\ n\ S) = P(T) * P(S)$

Solving for P(T)

$P(T) = \frac{n(T)}{Total}$

$P(T) = \frac{5}{15}$

Solving for P(S)

The question implies a probability without replacement;

Hence Total has now been reduced by 1

Total = 14

$P(S) = \frac{n(S)}{Total}$

$P(S) = \frac{3}{14}$

Recall that

$P(T\ n\ S) = P(T) * P(S)$

$P(T\ n\ S) = \frac{5}{15} * \frac{3}{14}$

$P(T\ n\ S) = \frac{15}{15 * 14}$

$P(T\ n\ S) = \frac{1}{14}$

Hence, the required probability is

$P(T\ n\ S) = \frac{1}{14}$

3 0

2 years ago

what's the average temperature change in degrees Fahrenheit per hour if the temperature fell 22 degrees Fahrenheit in 10 hours

Elenna [48]

It’s 22 degrees pick the one it is right

8 0

2 years ago

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a cube measuring 1 cm on each side, what is the volume, if the cube was dropped into 28ml of water. what would the new volume be

meriva

Answer:

29 ml

Step-by-step explanation:

Vcube = 1cm×1cm×1cm = 1 cm³

1 cm³ = 1 ml

If this cube is dropped into a 28ml of water the new reading will be 29 ml.

hope this helped :)

5 0

2 years ago

I need help finishing a question. I used the explanation function on the program, but it didn't specify what to do to get the fi

leva [86]

I would compute sqrt(1 + 160pi^2) first to get approximately 39.75093337

Add this to 1 and we have 40.75093337

Then divide over 2pi to get a final approximate result of 6.48571248

So x = 6.48571248 is one approximate solution

In short, I computed $\frac{1+\sqrt{1+160\pi^2}}{2\pi}$ only focusing on the plus for now.

----------------------

If you were to compute $\frac{1-\sqrt{1+160\pi^2}}{2\pi}$ you should get roughly -6.167402596 as your other solution. Each solution can then be plugged into the original equation to check if you get 0 or not. You likely won't land exactly on 0 but you'll get close enough.

6 0

2 years ago

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HELP!!! Drag the numbers to order them from least to greatest. HELP!!!!

Masteriza [31]

Answer:

-2.86 , -0.37 , 0.19 , 0.91 , 1.46

Step-by-step explanation:

8 0

1 year ago

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