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Trava [24]
3 years ago
8

Sylvia set a goal of saving at least $200 in a savings account.

Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0

Answer:

60+5x>200

Step-by-step explanation:

This is the answer

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Whitepunk [10]

\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}

A. 21

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2 years ago
Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart rate, r, in beats per minut
Scorpion4ik [409]

Answer:

R, in beats per minute, can be approximated by the formulas, where a represents the person's age.

where R= 143 - 0.65a for women.... (1)

and R= 165 - 0.75a for men,..... (2)

So by implementing these two equation we get a = 40

So the age will be 40 years old

 

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8 0
1 year ago
Evaluate the function f(x)=x^2+2x+3 at the given values of the independent variable and simplivy
tatyana61 [14]

Answer: i) f(-9)= 66

ii) f(x+1)=x^2+4x+6.

iii) f(-x)=x^2-2x+3

Step-by-step explanation:

The given function : f(x)=x^2+2x+3.

i) For f(-9) , the independent variable is x= -9.

Put x= -9 in given function , we get

f(-9)=(-9)^2+2(-9)+3

=81-18+3=66

Thus ,  f(-9)= 66

ii) For f(x+1) , the independent variable is x= x+1.

Replace x  by x+1 in given function , we get

f(x+1)=(x+1)^2+2(x+1)+3.

=(x^2+1+2x)+2x+2+3  [\because\ (a+b)^2=(a^2+b^2+2ab)]

=x^2+1+2x+2x+5

=x^2+4x+6

Thus ,  f(x+1)=x^2+4x+6.

iii)For f(-x) ,  the independent variable is x=-x.

Replace x  by -x in given function , we get

f(-x)=(-x)^2+2(-x)+3.

=x^2-2x+3  [∵ (+)(-)=(-)]

Thus , f(-x)=x^2-2x+3

8 0
3 years ago
you sit down to take a true or false test with 7 questions. If you randomly guess on all questions, how many possible outcomes a
kozerog [31]

Answer: 128

I just took the quiz on apex

Trust me

6 0
3 years ago
Find the slope-intercept equation of the line containing (2, -3) and having slope m=4
Inessa [10]

Answer: y = 4x - 11

Step-by-step explanation:

m = 4 , ( 2,-3 )

y - y1 = m ( x - x1 )

y - (-3) = 4( x - 2 )

y + 3 = 4x - 8

y = 4x - 11

3 0
3 years ago
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