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Shkiper50 [21]
2 years ago
7

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Mathematics
1 answer:
Katena32 [7]2 years ago
4 0

Answer:

x≥−3

Step-by-step explanation:

Let's solve your inequality step-by-step.

2x+3/ −3 ≤1

Step 1: Simplify both sides of the inequality.

−2/ 3 x−1≤1

Step 2: Add 1 to both sides.

−2/ 3 x−1+1≤1+1

−2/ 3 x≤2

Step 3: Multiply both sides by 3/(-2).

( 3/ −2 )*( −2/ 3 x)≤( 3/ −2 )*(2)

x≥−3

Answer:

x≥−3

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marissa [1.9K]
a(a-3) =100\\
a^2-3a-100=0\\
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\sqrt{\Delta}=\sqr{409}\\
a_1=\dfrac{-(-3)-\sqrt{409}}{2\cdot1}=\dfrac{3-\sqrt{409}}{2}\\
a_2=\dfrac{-(-3)+\sqrt{409}}{2\cdot1}=\dfrac{3+\sqrt{409}}{2}
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2 years ago
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Eva8 [605]

Answer:

inconsistent

Step-by-step explanation:

The two lines are parallel which means they will never intersect.  This means they have no solution.  When there is no solution they are inconsistent.


Coincident-  same line - infinite solutions

Inconsistent - parallel lines - no solutions

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3 years ago
How many solutions does this system have?
charle [14.2K]
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3 years ago
A Gallup Poll used telephone interviews to survey a sample of 1030 U.S. residents over the age of 18 regarding their use of cred
Vlada [557]

Answer:

The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

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72% of Americans said that they had at least one credit card

This means that p = 0.72

Give the 95% margin of error for this estimate.

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The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

7 0
3 years ago
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