Activity 1 Know My Equation? Wnte the equation of each of the following circles given the center and the radius. Center Radius Equation in Standard Form 1 2 (3,7) origin 9 units 11 units 3 (- & 3) 14 units 4 (-5, -8) 3v3 units 16V/units 5 (11,-7)

» The equation of the circle in standard form is written as:

» Where (h,k) is the center and r is the radius. Substitute each given to get its equation.

#1. Center: (3,7), Radius: 9 units

#2. Center: (0,0), Radius: 11 units

#3. Center: (-8,3), Radius: 14 units

#4. Center: (-5,-8), Radius: 3√3 units

#5. Center: (11,-7), Radius: 16√2 units

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The answer is in the image 

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

The solution is in the following image

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

The answer is in the image 

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

30% of 420 are first year students

first year students = (30/100 )*420

=126 students

Student who are not in first year = 420-126

=294 students