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4 years ago

6

Can someone please help me on this

1 answer:

steposvetlana [31]4 years ago

8 0

Answer:

See attached

Step-by-step explanation:

The graphs marked with a red X do not pass the vertical line test, so are not functions. (A vertical line must intersect the graph of a function in only one point.)

The curve at lower right is a function, but it isn't clear if it meets the requirement for "lines that represent functions", since it is not a straight line.

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12. a) Solve the following|x-1|<2.

Aleksandr-060686 [28]

<h3>Answer: -1 < x < 3</h3>

Work Shown:

| x-1 | < 2

-2 < x-1 < 2 ... see note1 below

-2+1 < x-1+1 < 2+1 ... see note2

-1 < x < 3

Note1: use the rule that |x| < k turns into -k < x < k for some positive real number k.
Note2: Add 1 to all sides to isolate x

3 0

2 years ago

-x^2+2x-1 factor and please show work

torisob [31]

x = 1

$-x^{2} +2x-1=0\\-(x-1)^{2} \\x=1$

4 0

3 years ago

I don't get what there asking.

Angelina_Jolie [31]

Answer:

86 adults and 270 children

Step-by-step explanation:

Let x = # of adult tickets;

then the number of children tickets is (356-x).

Write the total money equation (revenue equation)

$1.75*(356-x) + 2.25x = 666$ dollars.

From the equation

$x = \frac{666-1.75*356}{2.25-1.75} = 86$

ANSWER. 86 adults and 356-86 = 270 children.

CHECK.

$86*2.25 + 270*1.75 = 666$ dollars. ! Correct !

5 0

2 years ago

A number less than 15

artcher [175]

Answer:

14,13,12,11,10,9,8,7,6,5,4,3,2,1

Step-by-step explanation:

hope this helps

6 0

3 years ago

Read 2 more answers

1/3(x+6)=1/2(x-3) I need answer and explanation thanks

____ [38]

Answer:

x = 21

Step-by-step explanation:

1/3(x + 6) = 1/2(x - 3)

(3)1/3(x + 6) = (3) 1/2(x - 3) - multiply both sides by 3 to get rid of the 1/3

x + 6 = 3/2(x - 3)

x + 6 = 3/2 (-9/2) - i distributed the 3/2 into the parenthesis

x + 6 (2) = 3/2 (-9/2) (2) - multiply each side by 2 to get rid of the fractions

2x + 12 = 3x - 9

2x - 3x = -12 -9 - bring the x to one side

-x = -21

-x/-1 = -21/-x

x = 21

5 0

3 years ago