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2 years ago

What is the answer to -2+2x = -x + 2 + x

Mathematics

1 answer:

svp [43]2 years ago

4 0

Answer:

x = 2

Step-by-step explanation:

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What is the solution to the system of equations below?

AnnyKZ [126]

Answer:

x=9, y=3

Step-by-step explanation:

-4x+6y=-18

y=-2x+21

-4x+6(-2x+21)=-18

-4x-12x+126=-18

144=16x

x=9

y=-2x+21

y=-18+21

y=3

8 0

3 years ago

Write the numerical expression in words then solve (98-78)×11

Arada [10]

<span>Find the difference between ninety-eight and seventy-eight, then multiply by eleven. Ninety-eight minus seventy-eight is twenty, take this and multiply if by eleven to arrive at an answer of eleven. Following the order of operations the math within the parentheses must be done first, then the multiplication. The answer is two-hundred and twenty.</span>

4 0

3 years ago

These tables of values represent continuous functions. In which table do the values represent an exponential function?

vichka [17]

Answer:

The correct option is B.

Step-by-step explanation:

A function is called an exponential function if it has common ratio.

A function is called an linear function if it has common difference.

In option A.

$\frac{f(2)}{f(1)}=\frac{6}{3}=2$

$\frac{f(3)}{f(2)}=\frac{9}{6}=\frac{3}{2}$

$2\neq \frac{3}{2}$

Since the given table has different ratio, therefore it is not an exponential function. Option A is incorrect.

In option B.

$\frac{f(2)}{f(1)}=\frac{6}{2}=3$

$\frac{f(3)}{f(2)}=\frac{18}{6}=3$

$3=3$

Since the given table has common ratio, therefore it is an exponential function. Option B is correct.

In option C.

$\frac{f(2)}{f(1)}=\frac{22}{10}=\frac{11}{5}$

$\frac{f(3)}{f(2)}=\frac{34}{22}=\frac{17}{11}$

$\frac{11}{5}\neq \frac{17}{11}$

Since the given table has different ratio, therefore it is not an exponential function. Option C is incorrect.

In option D.

$\frac{f(2)}{f(1)}=\frac{8}{7}$

$\frac{f(3)}{f(2)}=\frac{9}{8}$

$\frac{8}{7}\neq \frac{9}{8}$

Since the given table has different ratio, therefore it is not an exponential function. Option D is incorrect.

3 0

2 years ago

Read 2 more answers

Determine whether the formula describes y as a function of x. y = -3x2 - 7x - 6 Explain your reasoning

AleksAgata [21]

Yes because when you have y = -3x²-7x -6 it is just the same as f(x) = -3x² -7x - 6

6 0

2 years ago

Consider the line 6x-5y=5. What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this

olga2289 [7]

Ok the the slope of the parallel line will be the same. The slope for the perpendicular line will be the negative reciprocal;

parallel line slope: 6/5

perpendicular line slope: - 5/6

If correct brainliest please

Thank you
:)

5 0

2 years ago