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3 years ago

Which of the four representations are incorrect?

Mathematics

2 answers:

MrMuchimi3 years ago

7 0

The second one is incorrect

Ulleksa [173]3 years ago

4 0

Answer:

second one

Step-by-step explanation:

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Two taxi services charge different rates. Taxi A charges $0.70 per mile

marshall27 [118]

Answer:

none of the above

Step-by-step explanation

70x + 300 = 90x

300 = 20x

15 = x

6 0

3 years ago

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Which statements about the graph of the function f(x) = 2x^2– x – 6 are true? Select two options.

Alekssandra [29.7K]

Answer:

Step-by-step explanation:

Please, share the answer options next time.

1) f(x) = 2x^2– x – 6 is a quadratic function.

2) The coefficients of this polynomial are a = 2, b = -1 and c = -6

2) Its graph opens up.

3) The x-value of the axis of symmetry and the vertex is x = -b / (2a), which here comes out to x = -(-1) / [2(2)], or x = 1/4

4) the y coordinate of the vertex is f(1/4), or -6 1/8

5) The vertex is at (1/4, -6 1/8)

6) The y-intercept is at f(0): 2(0)^2 - 0 - 6 = -6 => (0, -6)

3 0

3 years ago

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Can anyone help me with this?

mart [117]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=3x+2&(1)\\y=5x&(2)\end{array}\right\\\\\text{substitute (2) to (1):}\\\\5x=3x+2\qquad\text{subtract 3x from both sides}\\2x=2\qquad\text{divide both sides by 2}\\x=1\\\\\text{Put the value of x to (2):}\\\\y=5(1)=5$

7 0

3 years ago

Here is a list 31 29 33 37 43 38 33 40 find the mode in number of list and work out on mean

Ede4ka [16]

Answer: Mode = 33, Mean = 35.5

Step-by-step explanation: The mode is whatever number appears the most.

To find the mode, first put the numbers in order from least to greatest.

29, 31, 33, 33, 37, 38, 40, 43

In this case, 33 appears the most, so the mode is 33.

The mean is the average of all of the numbers.

Firstly, add up all of the numbers:

29 + 31 + 33 + 33 + 37 + 38 + 40 + 43 = 284

Now that you have all of them added up, divide the final sum by the number of numbers you have in the list. In this case, you have 8 numbers.

284/8 = 35.5

Your mean is 35.5

8 0

3 years ago

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Help pls this is for my math test.

Tresset [83]

Step-by-step explanation:

option D 6 units

hope this answer helps you dear..take care!

for the attached question..option C is correct.

8 0

2 years ago

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