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3 years ago

Write a recursive rule and and an explicit rule for the arithmetric sequence described by the table.

Mathematics

1 answer:

ra1l [238]3 years ago

5 0

recursive rule:
formula- $a_{n} + a_{1} +(n-1)d$
So the rule would be $a_{n} =60+(5-1)20$ 

explicit rule:
formula- f(n)=f(1)+d(n-1)
So the rule would be f(60)=F(60)+20(5-1)

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Is 120 of 100 larger than 100

iragen [17]

$\text{Hey there!}$

$\text{Is 120\% of 100 larger than 100?}$

$\boxed{\text{The answer is: YES it is larger than 100}}\checkmark$

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$\text{Good luck on your assignment and enjoy your day!}$

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4 years ago

Please answer my questionnn

Kaylis [27]

Hey There,

This is a subtracting fractions problem.

Solutions-

1. Convert $5 \frac{7}{10}$ to an improper question. You do this by multiplying the denominator and the whole number and adding that number to the numerator. The improper fraction would be $\frac{50}{7}$ 

2. Now, subtract $\frac{140}{0}- \frac{15}{10}$

3. The answer to step two should be $\frac{125}{10}$

Thus, the answer should be $\frac{125}{10}=12 \frac{1}{2}$

In conclusion, Jeff drives $12\frac{1}{2}$ miles farther then her sister.

Thank You!

5 0

3 years ago

The French club is sponsoring a bake sale.if their goal is to raise at least $140,how many pastries must they sell at $3.50 each

aleksklad [387]

"raise at least $140" tells you that, whatever the variables may be, the french club's profit needs to be 140 or more

they're selling pastries at $3.50 each, so we'll say that p is the number of pastries

140 >/= 3.50p

$140 must be greater than or equal to the profit from sold pastries

then just solve the inequality from there by isolating your variable:

140 >/= 3.50p

divide both sides by 3.50

40 >/= p

so they must sell at least 40 pastries to raise $140 dollars

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3 years ago

Brainliesttttttttt

Dmitry [639]

8x - (5x + 4) ≥ -31

8x -5x - 4 ≥ -31

3x ≥ -31 + 4

3x ≥ -27

x ≥ - 9

Answer: a numbe line with a circle on - 9 and shading to the left.

Because that drawing represents the number that are less or equel than -9 and the answer is the numbers greater or equal than -9.

4 0

3 years ago

Read 2 more answers

Suppose a railroad rail is 4 kilometers and it expands on a hot day by 12 centimeters in length. Approximately how many meters w

vredina [299]

Answer:

15.49 metres

Step-by-step explanation:

Given in the question that,

the railroad rail is 4 km before expansion.

To find,

the meters the centre of the rail rise above the ground on hot day.

When the railroad expands, it would approximate the forming of an isosceles triangle at the centre of the rail,

with base 4km

and

each isosceles side leg of the triangle is given by

(4 + 12x10^-5) / 2 = 4.00012 / 2 = 2.00006 kilometers

1cm = 10^-2 m = 10^-(2+3) = 10^-5 km

Taking one half of the isosceles triangle, we have a right triangle with base

base = 4 / 2 = 2 km

and

hypothenuse = 2.00006 kilometers.

By using the Pythagoras theorem, find the height of the right triangle as formed above.

hypo² = base² + height²

2.00006² - 2² = height²

height = √(2.00006² - 2²)

= 0.01549km

= 0.01549 x 10^3 m

= 15.49m

Thus, the centre of the rail will rise 15.49 metres above the ground.

6 0

4 years ago

Write a recursive rule and and an explicit rule for the arithmetric sequence described by the table.﻿

Write a recursive rule and and an explicit rule for the arithmetric sequence described by the table.