3 years ago

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Mathematics

1 answer:

lina2011 [118]3 years ago

5 0

The answer for this question is B because - -e/-f is the same as - -e/f

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If f(x) = 4(3x - 5), find f^-1(x)

Sloan [31]

Answer:

The answer is A.

Step-by-step explanation:

Lets call f(x)=y, so y= 4*(3*x-5), we want to find 'x', using 'y' as a the variable.

$y=12x-20\\ y+20=12x\\ x=\frac{y+20}{12}$

Now lets change the name of 'y' to 'x', and 'x' to f^-1(x).

f-1(x) = (x+20)/12

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3 years ago

Can u guys help me find the answer please?

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Answer:

6x4=24 for 1 side

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2 years ago

The table shows the number of calories in four meals and the cost of each meal.

Aleksandr-060686 [28]

Answer:

A weak negative correlation

Step-by-step explanation:

$correlation, r = \frac{∑(y-\alpha)(x-\beta }{\sqrt{∑(y-\alpha)^2∑(x-\beta )^2 } }$

where,

$\alpha = \frac{∑y}{n} \\\beta =\frac{∑x}{n} \\∑ = summation$

$\alpha = \frac{3230}{4} = 807.5\\\\\\\beta =\frac{46}{4} = 11.5$

$therefore,\\\\r= -0.12924$

This represents a weak negative correlation

6 0

2 years ago

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What's the diameter of a circle who's circumference is 200.332

nataly862011 [7]

Circunference=diameter time pi
aprox pi to 3.14
circunference=200.332
subsitue
200.332=diameter time s3.14
divide both sides by 3.14
63.8=diameter
answer is 63.8 units

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2 years ago

PLEASE ANSWERR!

Zielflug [23.3K]

Answer:

1. is 5x+12 hope it helped !

Step-by-step explanation:

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2 years ago

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