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3 years ago

Staples sells 5 packs of paper for $7.80. How much would 3 packs cost? help

Mathematics

1 answer:

taurus [48]3 years ago

3 0

Divide $7.80 by 3
gives you $2.6

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Complete the recursive formula of the geometric sequence -0.56\,,-5.6\,,-56\,,-560,...−0.56,−5.6,−56,−560,...Minus, 0, point, 56

pentagon [3]

Answer:

The recursive formula is:

Cn = 10C(n-1)

Step-by-step explanation:

Given the geometric sequence.

-0.56, -5.6, -56, -560, ...

The common ratio is

-5.6/-0.56 = -56/-5.6 = -560/-56 = ... = 10

The recursive formula is easily

Cn = C(n-1) × 10

That is a number is ten times the preceding number.

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3 years ago

Use differentials to find an approximate value for <img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B65%7D%20" id="TexFormul

Sveta_85 [38]

: Let y = f(x) = x^1/3
Then dy = 1/3*x^(−2/3) dx
Since f(64) = 4.
We take x = 64 and dx = ∆x = 1
This gives dy = 1/3*(64)^(−2/3)* (1) = 1/48
∴65^(1/3) = f(64 + 1) ≈ f(64) + dy = 4 + 1/48 ≈ 4.021 <span>
</span>

6 0

3 years ago

Read 2 more answers

Which algebraic expression is equivalent to the expression below?

Vera_Pavlovna [14]

<h3><u>Answer:</u></h3>

=11n+18

<h3><u>Step-by-step explanation:</u></h3>

3n+13+5+8n

<h3><u>Combine Like Terms:</u></h3>

=3n+13+5+8n

=(3n+8n)+(13+5)

=11n+18

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3 years ago

Pls help me calculate the total area of compound shapes?!?!?

alexandr1967 [171]

Answer:

Number 1 is 38cm and number 2 is 22ft.

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2 years ago

Byron can fill a drying rack with dishes in 15 minutes. While Byron fills the drying rack, Emmitt takes dishes out of the drying

Olegator [25]

Answer:

Hi!

The correct answer is d) 1 over 15 minus 1 over x equals x over 35.

Step-by-step explanation:

We know the amount of time that Byron can fill a drying rack with dishes: 15 minutes.

We know the amount of time that Byron can fill a drying rack with dishes while Emmitt is taking dishes out of the drying rack: 35 minutes.

We don't know the amount of time that Emmitt can take dishes out of the drying rack: x minutes.

So, if Byron is filling the drying rack in 15 minutes and Emmitt is taking out the dishes at x minutes, it takes 35 minutes to fill the drying rack.

$\frac{1}{15}-\frac{1}{x} = \frac{1}{35}$ <em>// multiply by 105x both sides.</em>

$105x\frac{1}{15}-105x\frac{1}{x} =105x \frac{1}{35}$ <em>// simplifly</em>

$7x - 105 = 3x$ <em> //substract 3x and add 105 in both sides</em>

$7x - 3x - 105 + 105 = 3x - 3x + 105$ <em>// solve</em>

$4x = 105$ <em>//</em> <em>divide by 4 in both sides</em>

$\frac{4x}{4} = \frac{105}{4}$ <em>// solve</em>

$x = 26.25$

It makes sense that Byron fills the rack faster than Emmitt empties the rack.

7 0

3 years ago