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3 years ago

4,11,22,37 Find an expression, in terms of n, for the nth term of this sequence.

Mathematics

1 answer:

Ivanshal [37]3 years ago

4 0

Step-by-step explanation:

4+7=11

11+(7+4)=22

22+(7+8)=37

Every step 7+4n you must add

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Lena is a software saleswoman. Her base salary is $ 1800 , and she makes an additional $ 120 for every copy of English is Fun sh

pishuonlain [190]

P=120N+1800
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3 years ago

Evaluate the discriminant for the following equation. Then use it to determine the number of distinct solutions, and tell wheth

exis [7]

Answer:

The Solutions are distinct and rational

Step-by-step explanation:

Given the general form of a quadratic equation: ax²+bx+c=0

The discriminant D=b²-4ac is used to determine the nature of the roots of the quadratic equation.

There are three cases:

1. If b² - 4ac > 0

The quadratic equation has two real, distinct (different) roots.

2.If b² - 4ac < 0

The quadratic equation has no real roots. i.e. It has complex roots

3. If b² - 4ac = 0

The quadratic equation has two real, identical roots.

Given our equation:

5x²+11x+6=0

a=5, b=11, c=6

The discriminant:

D=b²-4ac=11²-4(5)(6)=1

Since D=1>0, the roots of the equation are real and distinct.

5 0

3 years ago

The city of Toronto’s population rose from 2,000,000 to 4,500,000 in the last twenty years of the twentieth

Ostrovityanka [42]

Answer:

Step-by-step explanation:

We will first find the percentage increase of 20 years. Then we will divide that by 20 to get the annual average percentage increase.

To get the percentage increase, we will find the increased amount and divide that by original population (2,000,000). Multiply that by 100 to get the percentage.

So,

Increased amount = 4,500,000 - 2,000,000 = 2,500,000

Now the percentage increase:

$\frac{2,500,000}{2,000,000}*100=125$

So, in 20 years, the percentage increase is 125%

Per Year = 125/20 = 6.25% average per year

No correct answer in the answer choices from A through D, so E is the correct answer, None of These.

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3 years ago

Determine the period.

Lilit [14]

Answer:

Step-by-step explanation:

The graph will start repeating after every 13 degrees

5 0

2 years ago

Read 2 more answers

(9.3×10 to the sixth power) plus (1.8×10 to the fourth power)

balandron [24]

Answer:

9.318 × 10^ 6

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

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3 years ago