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Yuliya22 [10]
3 years ago
14

you work for a telecommunications company and need to analyze the outcome of a proposed new cell tower project. cell phone radio

towers broadcast a cell phone signal in a circular pattern. The company currently has cell towers in the locations described in the table. Tower A is Adele Acres coverage radius of 4ml. Tower B Brown Lake located 5miles east and 4 miles north of adele acres coverage radius of 3ml. and tower c cady city, located 4 miles eand and 4 miles south of adele acres, 5 ml in coverage radius. Using Adele Acres as the origin, what is the standard form for each tower and what is the general form for each tower, using adele acres as the origin.
Mathematics
1 answer:
umka21 [38]3 years ago
4 0

Answer:

The equations describing the area which each tower covers are given as

Tower A : x^{2} + y^{2} = 16

Tower B : (x - 5)^{2} + (y - 4)^{2} = 9

Tower C : (x - 4)^{2} + (y + 4)^{2} = 25

Step-by-step solution:

Cell phone radio towers broadcast a cell phone signal in circular pattern

Tower A at Adele Acres have position co-ordinates  as (0,0) and a coverage radius of  4 ml. So, the area which it covers is given by the equation,

x^{2} + y^{2} = 16 -------------------------------(1)

Tower B at Brown Lake have position co-ordinates  as (5,4) and a coverage radius of  3 ml. So, the area which it covers is given by the equation,

(x - 5)^{2} + (y - 4)^{2} = 9 -------------------------------(2)

Tower C at Cady City have position co-ordinates  as (4,-4) and a coverage radius of  5 ml. So, the area which it covers is given by the equation,

(x - 4)^{2} + (y + 4)^{2} = 25 -------------------------------(2)

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Answer:she need to do at least 3 hours of babysitting.

Step-by-step explanation:

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Which statement BEST explains the relationship between lines GF & HJ?
Pavel [41]

Answer:

Option (4)

Step-by-step explanation:

Slope a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

m = \frac{y_2-y_1}{x_2-x_1}

Since, blue line is passing through two points (-4, -2) and (0, 4),

Slope of the blue line = \frac{4+2}{0+4}

                                    = \frac{3}{2}

Similarly, green line is passing through two points (-4, 1) and (0, -2),

Slope of the green line = \frac{1+2}{-4-0}

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Since, \frac{3}{2}\neq -\frac{3}{4}

Neither these slopes are opposite reciprocals.

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6 0
2 years ago
Which of the following shows that EFGH is a parallelogram for y=7 and z=9?
Anna35 [415]

Option B: m \angle F=m \angle G=120^{\circ} and m \angle E=60^{\circ}, so \angle E is supplementary to both \angle F and \angle G, so EFGH is a parallelogram.

Option C: m \angle F=m \angle G=120^{\circ} so EFGH is a parallelogram.

Option D: m \angle E+m \angle G=180^{\circ} so EFGH is a parallelogram.

Explanation:

Option A: m \angle E=m \angle F=60^{\circ} and m \angle G=120^{\circ} so \angle G is supplementary to both \angle E and \angle F, so EFGH is a parallelogram

Let us substitute y=7 and z=9 in m \angle E=(7y+11)^{\circ}, m \angle F=(17y+1)^{\circ} and m \angle G=(14z-6)^{\circ} to determine the exact measures the angles of the parallelogram.

Substituting, we get, m \angle E=60^{\circ}, m \angle F=m \angle G=120^{\circ}

Thus, m \angle E\neq m \angle F because the measures of these angles are not equal.

Hence, Option A is not the correct answer.

Option B:  m \angle F=m \angle G=120^{\circ} and m \angle E=60^{\circ}, so \angle E is supplementary to both \angle F and \angle G, so EFGH is a parallelogram.

Let us substitute y=7 and z=9 in m \angle E=(7y+11)^{\circ}, m \angle F=(17y+1)^{\circ} and m \angle G=(14z-6)^{\circ} to determine the exact measures the angles of the parallelogram.

Thus, substituting, we have, m \angle E=60^{\circ}, m \angle F=m \angle G=120^{\circ}

Hence, Option B is the correct answer.

Option C: m \angle F=m \angle G=120^{\circ} so EFGH is a parallelogram.

To determine the angles, let us substitute z=9 in  m \angle F=(17y+1)^{\circ} and m \angle G=(14z-6)^{\circ}

Thus, m \angle F=m \angle G=120^{\circ}

Since, the opposite angles of a parallelogram are equal, EFGH is a parallelogram.

Hence, Option C is the correct answer.

Option D: m \angle E+m \angle G=180^{\circ} so EFGH is a parallelogram.

Let us substitute y=7 and z=9 in m \angle E=(7y+11)^{\circ}, m \angle F=(17y+1)^{\circ} and m \angle G=(14z-6)^{\circ} to determine the exact measures the angles of the parallelogram.

Substituting, we have, m \angle E=60^{\circ}, m \angle F=m \angle G=120^{\circ}

Adding the angles E and G, we have,

m \angle E+m \angle G=60^{\circ}+120^{\circ}=180^{\circ}

By the property of parallelogram, any two adjacent angles add upto 180.

Thus, the adjacent angles E and G add upto 180.

Hence, Option D is the correct answer.

3 0
3 years ago
Pleas choose correct answer
ElenaW [278]

Answer:

b

Step-by-step explanation:

4 0
2 years ago
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