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3 years ago

Please give me an explanation too I need help Solve for y: 2x-y=3

Mathematics

2 answers:

Reika [66]3 years ago

7 0

Answer:

y=2x-3

Step-by-step explanation:

2x-y=3

-2x on both sides of the equal sign which leaves you with -y=-2x+3

divide both sides by negative 1

y=2x-3

harina [27]3 years ago

5 0

Answer:

y = 2x -3

Step-by-step explanation:

to solve for y, simply isolate the y so in this case move 2x to the right side of the equation in which it becomes -y= -2x +3 and then divide by -1 which is beside the -y essentially cause y cannot be negative so then the equation becomes y = 2x -3

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4 years ago

Read 2 more answers

A) what is average rate of change of f(x) over the interval from x=5 to x=9? (table shows values of f(x). graph shows function o

SVETLANKA909090 [29]

Answer:

See below for answers and explanations

Step-by-step explanation:

Part A

The average rate of change of a function over the interval $[a,b]$ is equal to $\frac{f(b)-f(a)}{b-a}$ , hence:

$\frac{f(b)-f(a)}{b-a}\\\\\frac{f(9)-f(5)}{9-5}\\\\\frac{14-(-4)}{9-5}\\ \\\frac{14+4}{4}\\ \\\frac{18}{4}\\ \\\frac{9}{2}$

Therefore, the average rate of change of $f(x)$ over the interval $[5,9]$ is $\frac{9}{2}$ .

Part B

Do the same thing as in Part A:

$\frac{f(b)-f(a)}{b-a}\\ \\\frac{f(1)-f(0.25)}{1-0.25}\\ \\\frac{2-5}{0.75}\\ \\\frac{-3}{0.75}\\ \\-4$

Therefore, the average rate of change of $g(x)$ over the interval $[0.25,1]$ is $-4$ .

Part C

To interpret our answer from Part B in terms of the real world it represents, we say that between 0.25 seconds and 1 second, the ball falls at a rate of 4 feet per second (since our average rate of change is negative).

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2 years ago

Help please 6x^2-18

prohojiy [21]

Answer:

6(x^2-3)

Step-by-step explanation:

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3 years ago

Round to the nearest hundredth 9.8766

Levart [38]

Answer: 9.88