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Irina-Kira [14]
3 years ago
12

Which choice is a good estimate for the equation of the line below?

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
7 0
The Answer is C since Y is for the miles and X for hours, we need to substitute the miles in the y variable and solve for X !!
ludmilkaskok [199]3 years ago
6 0

Given is a table of Time(hours)-Distance(miles).

We have points (4, 208), (6, 312), (8, 416), (10, 520).

<u>Finding slope of given points:-</u>

m_1=\frac{312-208}{6-4}= \frac{104}{2}=52 \\m_2=\frac{416-312}{8-6}= \frac{104}{2}=52 \\m_3=\frac{520-416}{10-8}= \frac{104}{2}=52

We know general equation of the line is given by y = mx+b.

<u>Using point (4, 208) and slope m = 52 in the equation y = mx+b.</u>

208 = (52)(4) + b

208 = 208 + b

b = 0.

So, the equation is y = 52x.

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What conic section degenerates into a line?
andrew11 [14]
<h3>Answer: A) parabola</h3>

Some degenerate parabola cases form a single straight line, while other cases form one pair of parallel lines.

A degenerate hyperbola forms two lines that intersect at the vertex of the cone. We can rule out choice B.

A degenerate circle is a single point, so we can rule out choice C.

A degenerate ellipse is also a single point. Any circle is an ellipse (but not the other way around). We can rule out choice D.

5 0
3 years ago
Easy Area problem <br><br> Need it fast
Gekata [30.6K]

Answer:

just subtract the area of the rectangle from the area of the carpet

fine I'll do it

Area of a rectangle= lb

Area of a square= a^2

Area of the remaining area= lb - a^2

= (12*4) - (2*2)

= 48-4

= 44 ft^2

5 0
3 years ago
Simplify <br><br><br> 2−4÷2+2^3<br><br> Please help
mars1129 [50]
Divide then multiply then do left to right
8 0
3 years ago
What is the mean deviation of the following numbers 2 4 6 8 10 12​
olga nikolaevna [1]

Step-by-step explanation:

mean is always equal to additon of total no.s by total no.s

2 + 4 + 6 + 8 + 10 + 12

=42

total no.s = 6 no.s

42/6

=7

therefore 7 is the answer which is the mean deviation of the following no.s .

3 0
3 years ago
The number of different cars sold in some country rose from 210 in 1997 to 277 in 2007. Find the percent increase. Round to the
Virty [35]

Find percent increase by subtracting the amounts and dividing it by the old amount, then multiply the result by 100 to make it a percent.

Increase= (277-210)/210

67/210

Then it ends up as 0.319047619...

Multiply that by 100 to make it a percent, which is..

31.9047619..

Round it off, and you get..

32%!

4 0
3 years ago
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