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lyudmila [28]
2 years ago
5

Your friend Janelle is interested in calculating her maximum heart rate before she begins her aerobics class. You tell her she c

an do this by Group of answer choices subtracting her age from 220. multiplying her age by 2 and adding 100. adding her age to 220 and dividing by 2. adding her age to 220.
Mathematics
1 answer:
My name is Ann [436]2 years ago
3 0

Answer:

ok? and

Step-by-step explanation:

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What value is added to both sides of the equation x2 − 6x = 10 in order to solve by completing the square?
oksano4ka [1.4K]
To find the perfect square needed, you take the "middle" value and half it, then square it. so in this case, take -6, half it into 3, and square it to get 9. you'll be adding 9 to both sides
6 0
3 years ago
F(x)=−x+5, find f(-3)f(−3).
Rudiy27

Answer:

f(-3)= - (-3)+5= +3 +5 = 8

7 0
3 years ago
Translate each problem below into an equation and solve. Mr. Drysdale earned $906.25 in interest in one year on money that he ha
Effectus [21]
6.25% of $906.25 + $906.25
5 0
3 years ago
What’s all input for f(x)=3
defon

Answer:

all inputs are equal to <u>3</u>

Step-by-step explanation:

f(x) = 3 \\  =  3 \times 1\\  = 3  \times  {x}^{0}  \\ anything \: raised \: to \: 0 \: is \: 1 \\

\\  substituting \: any \: value \\  \: of \: x \: in \: f(x) \\ f(3) = 3 \times  {3}^{0}  \\  = 3 \times 1 \\ =  3 \\

\\ similarly \: all \: values \: of \: x \: will \\ give \: 3

8 0
3 years ago
Solve the following quadratic equation. Express your answers in exact form.
wlad13 [49]

Answer:

x = (2+√10)/ 3 and x= (2-√10/3)

Step-by-step explanation:

g(x) = -3x² +4x +2

use the quadratic formula x= (-b±√b²-4ac)/2a, when g(x) = ax² +bx +c

x= [-4 ±√4²-4*(-3)*2] / 2*(-3) , solve under the square root

x= (-4 ± √16 +24) / -6 , add under the radical

x= (-4 ±√40) / -6, simplify the square root

x= (-4 ±2√10) /-6, factor -2

x= -2 (2±√10)/-2 *3, simplify -2

x= (2±√10)/3

Therefore,

x = (2+√10)/ 3 and x= (2-√10/3)

5 0
3 years ago
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