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3 years ago

Consider the line 4x+2y=-7.

Mathematics

2 answers:

alexdok [17]3 years ago

6 0

Answer:

To find slop from the given equation,

Slope (m) =

$\frac{ - \: cofficients \: of \: x }{cofficient \: of \: y}$

So, slope of this equation is - 2

For perpendicular case,

M1 . M2 = - 1

Thus, m2 = 2 ( for this equation)

Similarly,

For parallel case,

M1 = m2

Thus, m2 = - 2 ( for this equation)

<h3 /><h3>Keep asking sir/maam</h3>

maks197457 [2]3 years ago

3 0

Answer:

Step-by-step explanation:

Parallel line is -2

perpendicular line is 1/2

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3 years ago

In 2003 a town’s population was 1431. By 2007 the population had grown to 2134. Assume the population is changing linearly.How m

sergiy2304 [10]

We will have the following:

First, we will have that the population change by:

$\Delta P=2134-1431\Rightarrow\Delta P=703$

So, the population changed by 703 people.

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$\Delta y=2007-2003\Rightarrow\Delta y=4$

So, it took 4 years to changes from 1431 to 2134.

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The average population growth per year is of 175.75 people per year.

The population in 2000 would have been:

$P_{2000}=\frac{2000\cdot1431}{2003}\Rightarrow P_{2000}=1428.856715\ldots$

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So, the population in 2000 would have been approximately 1429 people.

We will have that the equation for the population would be:

$P=(\frac{2134-1431}{2007-2003})t+1429\Rightarrow P=\frac{703}{4}t+1429$

So, the equation would be:

$P=175.75t+1429$

Now, we predict the number of people of the town in 2014:

$P_{2014}=175.75(14)+1429\Rightarrow P_{2014}=3889.5$

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1 year ago

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marishachu [46]

Answer:

126 square feet

Step-by-step explanation:

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A = (1/2)bh . . . . . where b is the base length and h is the height

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A = (1/2)(6 ft)(14 ft) = 42 ft^2

The lateral area of the pyramid consists of 3 such triangles, so the lateral area is ...

LA = 3·(42 ft^2) = 126 ft^2

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3 years ago

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True [87]

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