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3 years ago

5

The coordinates of an ordered pair have opposite signs. In which quadrant(s) must the ordered pair lie? Explain.

1 answer:

Alex Ar [27]3 years ago

5 0

There are two cases that fall into this category.
A. abscissa negative, ordinate positive. This type of coordinates are of points which lie on the second quadrant.
B. abscissa positive, ordinate negative. The points having this type of coordinates lie on the fourth quadrant.

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Graph the function. Then State the domain and range. Also increasing and decreasing

masha68 [24]

Answer:

See below, I will let graphing part to yourself.

Step-by-step explanation:

First function: domain: $[-9,\infty)$ , range: $(-\infty, -2]$ , decreasing

Second function: domain: $(-\infty, \infty)$ , range: $(-\infty, \infty)$ , increasing

Third function: domain: $[3, \infty)$ , range: $[-5,\infty)$ , increasing

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3 years ago

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About 70,000 people live in a 6-mile radius of a city's town hall. Find the population density in people per square mile. Round

nika2105 [10]

Answer:

The population density is 618.93 per square mile.

Step-by-step explanation:

It is given that,

No. of people, N = 70,000

The radius of a city's town hall, r = 6 miles

We need to find the population density. It can be calculated by the formula i.e. number of people divided by area of land such that,

$P=\dfrac{N}{A}\\\\P=\dfrac{N}{\pi r^2}\\\\P=\dfrac{70000}{\pi (6)^2}\\\\P=618.93\ \text{per square mile}$

So, the population density is 618.93 per square mile.

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3 years ago

Which line shows the first error in the solution?

masha68 [24]

Answer:

Line 4

Step-by-step explanation:

6(x+2) = 24

6x+12=24

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3 years ago

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Can y’all help me on question 27?!

dimulka [17.4K]

Answer: C. 78

Step-by-step explanation: Good luck! :D

There are 12 inches in a foot, there are 6 feet. 6 x 12 = 72

1/2 of a foot is 6 inches. 72 + 6 = 78!

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3 years ago

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andrey2020 [161]

Answer:

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Step-by-step explanation:

shown and pictured

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3 years ago