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madreJ [45]
3 years ago
5

Chelsea invested $5600 at a rate of 3.6% compounded quarterly. Write a compound interest function to model the situation. Then f

ind the balance after 6 years.
Pleasee Helppppp​
Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0
Need rid rid rid rid
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Need help solving for X
Marrrta [24]
Tanx= 8/10
tanx= 4/5
x= arctan(4/5)
x= 38.7 degrees
5 0
2 years ago
A store is having a sale on trail mix and jelly beans. For 5 pounds of trail mix and 3 pounds of jelly beans, the total cost is
GaryK [48]

Answer:

Trail Mix costs $2.50 per pound, and Jelly Beans cost $1.50 per pound.

Step-by-step explanation:

Using x for trail mix and y for jelly beans, we have a system of equations being

\left \{ {{5x+3y=17} \atop {2x+12y=23}} \right.

We can solve this system using substitution

5x+3y=17

Divide by 5 to have a coefficient of 1 before x

x+\frac{3}{5} y=\frac{17}{5}

Subtract \frac{3}{5} y from each side to single out one variable to one side

x=\frac{17}{5} -\frac{3}{5} y

Now, we can plug in our value for x into the given equation

2(\frac{17}{5} -\frac{3}{5} y)+12y=23

Open the parentheses

\frac{34}{5} -1\frac{1}{5} y+12y=23

Merge Y values

6.8+10.8y=23

Separate numerical values from variables

10.8y=16.2

Divide by 10.8 in order to have a coefficient of 1

y=1.5

Now that we have one of the values, we know that a pound of jelly beans costs $1.50. We can now plug in 1.5 for y into one of our equations to find x.

5x+3(1.5)=17

Open parentheses

5x+4.5=17

Single out the variable

5x=12.5

Divide by 5 to have a coefficient of 1 before x

x=2.5

y=1.5

3 0
2 years ago
I need help plz, i will give brainliest for the correct answer
DanielleElmas [232]

Answer:

  • f'(1) exists: f'(1) = -2
  • f'(0) DNE

Step-by-step explanation:

<h3>a)</h3>

The function is continuous for x > 0 . The derivative is defined on that interval and is equal to ...

  f'(x) = -2x . . . . . for x > 0

Then at x = 1, the derivative is ...

  f'(1) = -2(1)

  f'(1) = -2

__

<h3>b)</h3>

The function has a jump discontinuity at x=0, so the derivative does not exist at that point. A condition for the existence of the derivative is that the function is continuous at the point of interest.

6 0
2 years ago
What is the meaning of the quadratic formula. write it down?​
Vlad1618 [11]

Answer:

Quadratic formula is the tool for solving for an unknown number (usually x)

Step-by-step explanation:

The formula is below

7 0
3 years ago
Read 2 more answers
Helppppppppppppp i need this homework done by today
lbvjy [14]

Answer: 13. -68

14. 36

15. -36

16. -3

17. 10

18. -4

19. 1310 ft

20. 330 ft

Step-by-step explanation:

13. 34*(-2)=-68

14. -9*(-4)=

-(9*(-4))=

-(-36)=36

15. 12*(-3)=-36

16. -12/4=-3

17. -20/(-2)=

20/2=10

18. 200/(-50)=-4

19. -1640*(-1)-(-330*(-1))=

1640-(-330*(-1))=

1640-330=1310 ft

20. -990*(-1)-(-660*(-1))=

990-(-660*(-1))=

990-660=330 ft

7 0
1 year ago
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