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Ronch [10]
3 years ago
15

Solve the inequality -8x < 32

Mathematics
2 answers:
slava [35]3 years ago
8 0

Step-by-step explanation:

divide the both sides by -8

x >  - 4

you have to change the sign of inequality because you have divided by negative number

deff fn [24]3 years ago
4 0

Answer:

x>-4

Step-by-step explanation:

-8x<32       -       First isolate the x by dividing both sides by -8

-8x/-8<32/-8      

x>-4

<h2><u>When you divide or multiply by a negative the inequality sign flips.</u></h2>

<u></u>

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The graph 4x^2-4x-1 is shown. Use the grpah to find the estimates for the solutions of 4x^2-4x-1=0 and 4x^2 - 4x-1=2
Darina [25.2K]

Answer:

a) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 0 are x_{1}\approx -0.25 and x_{2} \approx 1.25.

b) The estimates for the solutions of 4\cdot x^{2}-4\cdot x -1 = 2 are x_{1}\approx -0.5 and x_{2} \approx 1.5

Step-by-step explanation:

From image we get a graphical representation of the second-order polynomial y = 4\cdot x^{2}-4\cdot x -1, where x is related to the horizontal axis of the Cartesian plane, whereas y is related to the vertical axis of this plane. Now we proceed to estimate the solutions for each case:

a) 4\cdot x^{2}-4\cdot x -1 = 0

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.25, x_{2} \approx 1.25

b) 4\cdot x^{2}-4\cdot x -1 = 2

There are two approximate solutions according to the graph, which are marked by red circles in the image attached below:

x_{1}\approx -0.5, x_{2} \approx 1.5

5 0
3 years ago
Which point is not on the graph of y =2x + 3?
Nostrana [21]

Answer:

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3 0
3 years ago
Solving equations and Inequalities 1 ) -10p=2(p-12)
MArishka [77]
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5 0
4 years ago
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bezimeni [28]
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