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rosijanka [135]
4 years ago
6

Three points are coplanar. always sometimes never

Mathematics
2 answers:
iris [78.8K]4 years ago
7 0

Answer:

always

Step-by-step explanation:

Three points are always coplanar

Rina8888 [55]4 years ago
5 0

Answer:

always

Step-by-step explanation:

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A sphere's radius is multiplied by 3. How is its surface area affected?
Montano1993 [528]

Answer:

Step-by-step explanation:

For all shapes, the surface area will go up by a factor of 9 (3^2). This is true of spheres, cones, cubes, pyramids, torusses, everything.

The surface area of any body is proportional to the square of any linear dimension. Triple a linear dimension and you get a 9 fold increase in surface area. This is as true for pretzels as it is for spheres and cubes.

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3 years ago
Please help me with number 19 a and b
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A.
The second and first quadrant, because the hour and temperatures are unlikely to be negative numbers. All positive numbers for both X and Y values are in the second quadrant. If the hour is before noon, then the X value will venture into quadrant one. The diagram shows the quadrants in a graph.

B. For both the time and the temperature to be negative, and in quadrant four, you would have to be located in possibly Alaska or northern Canada. In such locations colder areas would be more likely to have negative temperatures and at times before 12.

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What is the surface area of the square pyramid represented by the net?
jeyben [28]
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3 years ago
I earn 10 on January 1.
STALIN [3.7K]

answer by day seven you should have 55

6 0
4 years ago
Patty buys a new car and gets it appraised every few years. After owning the car for 3 years, its value is $15,000. After owning
natta225 [31]

Answer: 45000

Step-by-step explanation:

From the question, we are informed that Patty buys a new car and gets it appraised every few years and that after owning the car for 3 years, its value is $15,000 and further told that after owning the car for 5 years, its value is $9,000.

Let the number of years be x

Let the value of the car be y.

From the first part of the question, we are told that after owning the car for 3 years, its value is $15,000.

Since an inverse variation will be:

x = k/y

3 = k/15000

k = 15000 × 3

k = 45000

Let's confirm the value of k for the second part of the question. After owning the car for 5 years, its value is $9,000. Here, x=5 and y = 9000

x = k/y

x = 45000/9000

x = 5

It's correct.

Therefore, the constant of proportionality is 45000

3 0
3 years ago
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