f(x) = 90(1.013)x
f(x) = 91.2(2.2)x
f(x) = 90(2.2)x
Answer: 32
Step-by-step explanation: Complementary angles, which means two angles that sum to 90. 90 minus 58 = 32, missing angle is 32.
X^2+3x+3=0
Answer:
$110.55.
Step-by-step explanation:
To find the average monthly electric bill cost for the Cox family, you need to add up the costs for each month and then divide the sum by the number of months.
Here are the steps:
1. Add up the costs for each month:
- September: $87.55
- October: $97.34
- November: $100.44
- December: $156.88
The sum of these costs is $87.55 + $97.34 + $100.44 + $156.88 = $442.21.
2. Determine the number of months. In this case, there are 4 months.
3. Divide the total cost by the number of months to find the average:
Average monthly electric bill cost = $442.21 ÷ 4 = $110.55.
Therefore, the Cox family's average monthly electric bill cost is $110.55.
Answer:
Their average monthly electric bill is at 110,55
Step-by-step explanation:
To get the awnser you have to add all the numbers together, then you have to devide the number yoy got with how many number there are.
Answer:
9.8
Step-by-step explanation:
The center of the circle is: (-4 ; -11) and the radius of the circle is r = 10
What is equation of circle?
The general equation for a circle is (x-a)² + (y-b)² = r², where ( a, b ) is the center and r is the radius.
Given:
x² + y² + 8x + 22y + 37 = 0.
Now, to find both coordinates and radius write the given equation in standard form:
(x-a)² + (y-b)² = r²
x² + 8x + y²+ 22y= -37
( x² + 2* x*4 + 4²)+( y² + 2*y* 11 + 11²) = -37 + 16 + 121
(x + 4)² + ( y+ 11)² = 100
(x + 4)² + ( y+ 11)² = 10²
So, center of the circle is: (-4 ; -11)
and the radius of the circle is r = 10
Learn more about this concept here;
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