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4 years ago

Help right away!!!!!!!!!!

Mathematics

2 answers:

babunello [35]4 years ago

8 0

X = 9 thank me by brainliest ;))

n200080 [17]4 years ago

3 0

The answer is x=9 hope this helps

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What do you add to 5 3/7 to make 8?

KATRIN_1 [288]

Answer:

2 4/7

Step-by-step explanation:

3/7+4/7= 7/7 or 1 whole

So you add that to the 5 and get 6, then you need 2 to get to 8 because 6+2=8

Hope this helped!!!

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3 years ago

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5x + 2 = 8x + 5 Help me before I die quick math is so hardddddd

attashe74 [19]

Answer:

x = -1

Step-by-step explanation:

Note: when you send a number across it can change it sign. If it is positive it will turn negative.

5x + 2 = 8x + 5

Send 8x across

5x + 2 - 8x = 5

send 2 across

5x - 8x = 5 - 2

- 3x = 3

Divide both sides by - 3

- 3x/- 3 = 3/- 3

- 3 cancel out - 3

x = 3/ - 3

3 divided by - 3 is - 1

x = -1

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2 years ago

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Which polynomial function could be represented by the graph below?

Svetllana [295]

Note that

$f(x)=x^3+x^2-6x=x(x^2+x-6)=x(x-2)(x+3)$

The x-intercepts are at points x=-3, x=0, x=2. The graph should be increasing - decreasing - increasing.

$f(x)=x^3-x^2-6x=x(x^2-x-6)=x(x+2)(x-3)$

The x-intercepts are at points x=-2, x=0, x=3. The graph should be increasing - decreasing - increasing.

$f(x)=-2x^3-2x^2+12x=-2x(x^2+x-6)=-2x(x-2)(x+3)$

The x-intercepts are at points x=-3, x=0, x=2. The graph should be decreasing - increasing - decreasing.

$f(x)=-2x^3+x^2+12x=-2x(x^2-x-6)=-2x(x+2)(x-3)$

The x-intercepts are at points x=-2, x=0, x=3. The graph should be decreasing - increasing - decreasing.

From the diagram you can see that x-intercepts are at points x=-3, x=0, x=2 and the graph is decreasing-increasing-decreasing.

Answer: correct choice is 3.

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4 years ago

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Sofia wants to buy a new pair of jeans. At Pants World, the jeans she wants cost $40 and they're having a 25% off sale. At All C

kondor19780726 [428]

Answer:

number 2

Step-by-step explanation:

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3 years ago

Find the slope and equation of a line perpendicular to the y axis that passes through (3,-8)

alexgriva [62]

A line perpendicular to the y axis is horizontal line (parallel to the x axis).

Equation of this line is y = a.

The line passes through (3, -8) → x = 3 and y = -8.

Therefore your answer is y = -8.

4 0

3 years ago