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egoroff_w [7]
1 year ago
7

Thanks so much for the help!!

Mathematics
1 answer:
saveliy_v [14]1 year ago
3 0

Answer: Domain: x=-2. Range: -2<=y<1

Step-by-step explanation:

Domain: The line is only on one x-point and that is x=-2.

Range: The line is ranging form -2 to 1. However, y=1 is not included on the line but y=-2 is. Hence, the range is notated as -2<=y<1.

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10+22+34+...+422=S Help
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Answer:

46

Step-by-step explanation:

Its adding 12 each time

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A rectangular park had a perimeter of 18 miles. It is 7 miles wide. What is the area of the park?
4vir4ik [10]
Perimeter = 18 miles
Perimeter = 2a + 2b
2a + 2b = 18

a = ?
b = 7

18 = 2a + 2*7
18 = 2a + 14
2a = 18 - 14
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Area = a * b
Area = 2 * 7 = 14 miles2
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6/13 by 6/12? what is the answer
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(6/13)/(6/12)= (6/13)*(12/6)= 12/13   
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3 years ago
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Most elements, with the exception of a few like hydrogen, want to have _________ electrons in the outer energy level. 6 8 10
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7 0
3 years ago
Jackie makes an $800 deposit into a bank account earning 4.5% interest.
Pepsi [2]

Answer:

a. $1251.5

b. $1254.64

c. 15.4 years

d. 30.56 years

Step-by-step explanation:

Given the information:

  • Principle (P) = $800
  • Interest = 4.5%

As we know, the formula to find the future value of Jackie deposit with interest is compounded monthly, quaterly, ..is

A=P(1+\frac{r}{n} )^{nt}  where:

  • P = initial balance
  • r = interest rate (decimal)  
  • n = number of times compounded annually
  • t = time

Hence:

a. If the interest is compounded quarterly how much money will Jackie have in 10 years?

A=P(1+\frac{r}{n} )^{nt}  

<=>  A=800(1+\frac{0.045}{4} )^{4*10}

<=> A = $1251.5

d. If Jackie's money is compounded monthly, how long will it take her money to triple?

<=> A=P(1+\frac{r}{n} )^{nt} = 3*800

<=> 800(1+\frac{0.045}{12} )^{12*t} = 2400

<=> (1+\frac{0.045}{12} )^{12*t} = 3

<=> t = 30.56 years

As we know, the formula to find the future value of Jackie deposit with interest is compounded continuously

A = P*e^{rt} where e is the mathematical constant approximated as 2.7183.

b. If the interest is compounded continuously how much money will Jackie have in 10 years?

<=> A = 800*2.7183^{0.045*10}

<=> A = $1254.64

C. If Jackie's money is compounded continuously, how long will it take her money to double?

<=> P*e^{rt}  = 2*800

<=> 800*2.7183^{0.045*t} = 1600

<=> 2.7183^{0.045*t} = 2

<=> t = 15.4 years

8 0
3 years ago
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