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Tcecarenko [31]
2 years ago
5

Interval notation on a number line

Mathematics
1 answer:
Gennadij [26K]2 years ago
7 0

Answer:

x>-3 : All numbers greater than -3, not including -3. The interval is (-3, inf)

x<=2: All numbers less than 2, including 2.The interval is (-inf, 2]

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Line b passes through the Point(-3, -4) and has a slope of -1/2. What is the equation of Line b in standard form?
Anna11 [10]

Answer:

x+2y=-11

Step-by-step explanation:

Slope intercept form of a line is given by:

y=mx+b

Where

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Given slope is  -\frac{1}{2}

We can write:

y=-\frac{1}{2}x+b

Now to find b, we replace x with -3 and y with -4, given, so we have:

y=-\frac{1}{2}x+b\\-4=-\frac{1}{2}(-3)+b\\-4=\frac{3}{2}+b\\b=-5.5

So, the equation is:

y=-\frac{1}{2}x-\frac{11}{2}

Now,

The standard form is given by:

Ax+By=C

So, we take x and y to left side and the constant to right side. Rearranging, we get:

y=-\frac{1}{2}x-\frac{11}{2}\\2y=-x-11\\x+2y=-11

The first answer choice is right.

3 0
3 years ago
c) Your parents have been advised to save 5% of their income for your college education, which would include money for housing,
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In one year they would have saved up $2447.40 for your education
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Answer:

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I used a calculator. But on the bottom, it says the rounded number should only have 3 digits. The real answer is 3.622580645. But since I rounded the answer would be 3.62.

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