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sertanlavr [38]
3 years ago
12

Find the first six terms of the sequence. a1 = -7, an = 4 • an-1

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
6 0

Answer:

- 7, - 28, - 112, - 448, - 1792, - 7168

Step-by-step explanation:

Using the recursive formula and a₁ = - 7 , then

a₂ = 4a₁ = 4 (- 7) = - 28

a₃ = 4a₂ = 4(- 28) = - 112

a₄ = 4a₃ = 4(- 112) = - 448

a₅ = 4a₄ = 4(- 448) = - 1792

a₆ = 4a₅ = 4(- 1792) = - 7168

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The fifth grade teachers took their classes on a field trip to museum first group had 25 students and two teachers and cost $97.
iren [92.7K]

Answer:


Step-by-step explanation:

S=student cost; T=teacher cost

.

32S+3T=$127 . Multiply this by 2.

64S+6T=$254 Subtract this below

.

25S+2T=$97.50 . Multiply this by 3.

75S+6T=$292.50

64S+6T=$254 . Subtract this (from above.)

.

11S=$38.50

S=$3.50

ANSWER 1: Student tickets cost $3.50.


.

32S+3T=$127

32($3.50)+3T=$127

$112+3T=$127

3T=$15

T=$5.00

ANSWER 2: Teacher tickets cost $5.00.

.

CHECK:

25S+2T=$97.50

25($3.50)+2($5.00)=$97.50

$87.50+$10.00=$97.50

$97.50=$97.50


4 0
3 years ago
What percent of a dollar is a nickel and a penny?<br><br><br><br> It is ______% of a dollar.
TiliK225 [7]

Answer:

6 %

Step-by-step explana

100 pennies makes a dollar... you just add 5 for the nickel and 1 fo the penny and it makes 6

7 0
2 years ago
1. Is triangle P’Q’R larger or smaller than triangle PQR? Explain how you know
Salsk061 [2.6K]

Answer:

The length of the line is PQ as this line is parallel to the x - axis. So, the length of the line is the summation of 10 from second quadrant and 20 from first quadrant. So, the sum is 30. Hence the length of the line is 30 units.

Step-by-step explanation:

The length of a line segment can be measured by measuring the distance between its two endpoints. It is the path between the two points with a definite length that can be measured. Explanation: On a graph, the length of a line segment can be found by using the distance formula between its endpoints.

7 0
2 years ago
Camacho is buying a monster truck. The price of the truck
Mice21 [21]

Total cost = a + (13a/100)

<u>Step-by-step explanation:</u>

Let the price of the monster truck be 'a'

He should pay 13% tax

Total cost = price of the truck + tax

Total cost = a + (13a/100)

The equation to represent the total cost is

Total cost= a + (13a/100)

3 0
3 years ago
&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;(look at my other question)
aniked [119]

where is your other question? is this spam?


8 0
3 years ago
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