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Ludmilka [50]
3 years ago
5

Darnell went to the movies with his friends. The movie started at 2:35 pm and lasted 1 hour and 45 minutes. What time did the mo

vie end?
Mathematics
1 answer:
gregori [183]3 years ago
7 0
4:20. 2:35+ an hour is 3:35+45 minutes is 4:20
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As a promotion, a clothing store draws the name of one of its customers each week. The prize is a coupon for the store. If the w
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The given formula is f(x) = 20(1.2)^x

The formula is the starting amount multiplied by 1 + the percentage raised to the number of weeks.


A) the percent increase is 20% ( 1.2 in the formula is 1 +20% as a decimal)

B) the original amount is $20

C) for 2 weeks, replace x with 2 and solve:

20(1.2)^2

20(1.44) = $28.80

After 2 weeks the coupon is $28.80

D)  To solve for the number of weeks (x) set the equation equal to $100:

100 = 20(1.2)^x

Divide both sides by 20:

5 = 1.2^x

Take the natural logarithm of both sides:

ln(5) = ln(1.2^x)

Use the logarithm rule to remove the exponent:

ln(5) = x ln(1.2)

Divide both sides by ln(1.2)

x = ln(5) / ln(1.2)

Divide:

X = 8.83

At 8.83 weeks the coupon would be $100, so after 9 weeks the coupon would be greater than $100

The answer is 9 weeks.

4 0
3 years ago
The graph below shows where the two functions y = f(x) and y = g(x) intersect. Solve the equation f(x) = g(x).
s344n2d4d5 [400]
Answer: (-2, 2) and (4, 8)

There are two solutions because the two functions cross each other twice.
7 0
3 years ago
What is the graph for f(x)=3*(1/2)^2
DiKsa [7]

Answer:

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex:  

(

1

,

−

2

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Focus:  

(

1

,

−

23

12

)

Axis of Symmetry:  

x

=

1

Directrix:  

y

=

−

25

12

x

y

−

1

10

0

1

1

−

2

2

1

3

10

6 0
3 years ago
I need some help on these questions 2-54 Evens Please help me
KATRIN_1 [288]
2.3
4.14
6.2
8.-9
10.-1
12.-13
14.-20
16.10
18.-2
20.-6
22.16
3 0
3 years ago
Find the perimeter. use 3.14 for pi
Mamont248 [21]

Answer: 27.42 units

Step-by-step explanation:

6 + 6 + 6 = 18

C= 1/2 3.14d

1/2 x 3.14 x 6

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18+9.42 = 27.41

4 0
3 years ago
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