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lisabon 2012 [21]
3 years ago
10

Three people are employed to manage the social media accounts of a company. The company has 9 social media

Mathematics
1 answer:
Stels [109]3 years ago
3 0
I will say A because there’s 3 people and the company has 9 socials so 9/3 is 3
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I have 2 questions. Please help me with them. Thank you.
zavuch27 [327]
(x+8)^(2) + (y+9)^(2) = 169
(x+8)^(2) + (y+9)^(2) = 13^2

h = -8
k = -9
r = 13

answer
A. center (-8,-9)
radius = 13



--------------


(x-7)^2  + y^2 = 225
(x-7)^2  + y^2 = 15^2

h = 7
k = 0
r = 15

answer
B. center (7,0)
radius = 15
6 0
3 years ago
The amount of a chemical solution is measured to be 2 liters. What is the percent error of the measurement?
dezoksy [38]
The complete question in the attached figure

we know that
2 liters may be 1.5 to 1.9 rounded up to 2
or 2.1 to 2.4 rounded down to 2

the biggest percent error would be between 2 and 1.5, which is a volume error of 0.5 liters
2 - 1.5 = 0.5 liters
percent error = (absolute error / quantity) * 100
percent error = [0.5/2] * 100% = 0.25 * 100% = 25%

the answer is the option C) 25%

6 0
3 years ago
Read 2 more answers
Consider a civilization broadcasting a signal with a power of 2.0×104 watts. The Arecibo radio telescope, which is about 300 met
Vitek1552 [10]

For light: Inverse Square Law 

<span>
The signal is weaken by the inverse square of the difference of distances this means that one over the square of the difference. </span>

<span>
</span>

Therefore, 70000LY / 141 LY =496.45 and that squared =246462.602 times less signal, or 1/246462.602.


 2 For a circular telescope like the Arecibo radio telescope that equals Pi times the radius squared. Sensitivity of the telescope depends on its area.<span>
The new telescope needs 246462.60 times that area to have enough sensitivity </span>

<span>
<span>(150 x 150 x Pi) = 70 685 sq m area for the Arecibo telescope and that times 246462.60
= 1.74212 x 10^10</span></span>

<span><span>
</span></span>

What is the diameter of a circle with that area?

 <span>
<span>1. Divide the area by Pi = 5.548156 x 10^9
2. Take the square root of the result to find the radius = 74485.94293</span></span>

3. Multiply by 2 to find the diameter = <span>148971.886</span>

7 0
3 years ago
Which statement is true regarding the graphed functions?
xenn [34]

Answer:

A

Step-by-step explanation:

because I mean u have to no what's a function and what's not a function is when the lines don't touch and a non function is when that do

5 0
3 years ago
Read 2 more answers
Question 2 of 5
Mice21 [21]

Answer:

30

Step-by-step explanation:

4 0
3 years ago
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