1 year ago

What number line represents the solution to the inequality below-6< -2x

Mathematics

1 answer:

aliina [53]1 year ago

4 0

Answer:

The answer is 3 or x<3.

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Answer:

nickels 15 dimes 45 pennies and quarters 10

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3 years ago

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Angelina_Jolie [31]

its b because x+6 never changes

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3 years ago

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Is (3,4) a solution of y<4x-2

butalik [34]

Answer:

yes

Step-by-step explanation:

4x3-2=10>4

so it is true

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2 years ago

Please help asap 25 pts

guajiro [1.7K]

D because the y-intercept is at -5 like shown in the equation, and the slope equals to 1, and I do believe that the bold line means that it is less than or equal to, just like the equation says.

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2 years ago

Eric is studying people's typing habits. He surveyed 525 people and asked whether they leave one space or two spaces after a per

Otrada [13]

Answer: (0.8115, 0.8645)

Step-by-step explanation:

Let p be the proportion of people who leave one space after a period.

Given: Sample size : n= 525

Number of people responded that they leave one space. =440

i.e. sample proportion: $\hat{p}=\dfrac{440}{525}\approx0.838$

z-score for 90% confidence level : 1.645

Formula to find the confidence interval :

$\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$0.838\pm (1.645)\sqrt{\dfrac{0.838(1-0.838)}{525}}\\\\=0.838\pm (1.645)\sqrt{0.00025858285}\\\\=0.838\pm (1.645)(0.01608)\\\\= 0.838\pm0.0265\\\\=(0.838-0.0265,\ 0.838+0.0265)\\\\=(0.8115,\ 0.8645)$

Hence, a 90% confidence interval for the proportion of people who leave one space after a period: (0.8115, 0.8645)

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3 years ago