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Alex_Xolod [135]
3 years ago
10

Cell phone coverage is in a circular pattern from the tower. If the equation of this pattern is x2 + y2 = 4225, how many miles a

way from the tower will you have coverage?
Mathematics
2 answers:
lana66690 [7]3 years ago
8 0

Answer:

We can get the coverage up-to 65 miles distance from the tower.

Step-by-step explanation:

Cell phone coverage from a tower can be represented by x² + y² = 4225

This equation is in the form of x² + y² = r², a standard equation for a circle having radius r and center at (0, 0).

When we compare this standard equation with the equation given we find

r² = 4225

r² = (65)²

r = 65

Therefore, we can get the coverage up-to 65 miles.

stiks02 [169]3 years ago
4 0
General formula for circles at the origin is x^2+y^2=R^2 where R is the radius.So R^2=4225. Solve for R.
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Tanzania [10]

Answer:

12

Step-by-step explanation:

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3 years ago
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Pamela is 7 years younger than Jiri. The sum of their ages is 39. What is Jiri ‘s age?
astraxan [27]

Based on the task given, Pamela's age and juri's age is 16 and 23 years respectively.

<h3>Equation</h3>

  • Juri's age = x
  • Pamela's age = x - 7
  • Their total age = 39

x + (x - 7) = 39

x + x - 7 = 39

2x = 39 + 7

2x = 46

x = 46/2

x = 23

Therefore,

Juri's age = x

= 23 years

Pamela's age = x - 7

23 - 7

= 16 years

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8 0
1 year ago
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n
sp2606 [1]
Let the number of adults be x, then number of male students is 1 + 7x and the number of female students is (1 + 7x)/2.
x + 1 + 7x + (1 + 7x)/2 = 82
2x + 2 + 14x + 1 + 7x = 164
23x = 164 - 2 - 1 = 161
x = 161/23 = 7

Therefore, number of male students is 1 + 7(7) = 1 + 49 = 50
and the number of female students is 50/2 = 25.
5 0
3 years ago
How do you get 27 only using the numbers 1,2,3,4
Elanso [62]
If you multiply 3 and 3 and 3 
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3 years ago
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What is the surface area of this triangular prism rounded to the nearest tenth? A) 48.6km2 B) 63.4 km2 C) 72.6 km2 D) 84.4 km2
Mekhanik [1.2K]

Correct option B)63.4km^2 .

<u>Step-by-step explanation:</u>

We have the following figure attached as shown below.

Now, this triangular prism have 2 similar right angled surfaces and 3 rectangular surfaces , Let's calculate area for all of them:

2 similar right angled surfaces

We know that area of triangle = \frac{1}{2} b(h)

⇒ area = \frac{1}{2} b(h)

⇒ area = \frac{1}{2} (3.6)(7.7)

⇒ area = 13.86km^{2}

But there 2 such surfaces so , area = 2(13.86) = 27.72km^2

3 rectangular surfaces

Area of rectangle = length(breadth)

⇒ area_1 = 3.6(1.8)

⇒ area_1 = 6.48km^2

⇒ area_2= 7.7(1.8)

⇒ area_2 = 13.86km^2

⇒ area_3 = 8.5(1.8)

⇒ area_2 = 15.3km^2

Total area =6.48 + 13.86 + 15.3 = 35.64km^2

Adding area of 2 similar right angled surfaces & 3 rectangular surfaces:

Area = 27.72+35.64 = 63.36km^2 = 63.4km^2

Correct option B)63.4km^2 .

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2 years ago
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