Alex wants to buy 7 DVDs.

Mathematics

1 answer:

castortr0y [4]3 years ago

6 0

The most each dvd can cost is $4.
I haven’t covered inequalities yet.

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Rectangle has a perimeter of 48". The length is 4" more than the width. What is the length?

Svetradugi [14.3K]

Answer:

If you don't know it off the top of your head, work backwards.

48/4=12

Check:

12(4)=48

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4 years ago

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If you’re good with permutations in math 30 please help and answer this easy question below real answers only

Len [333]

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

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4 years ago

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svp [43]

Answer:

2.4 × 10⁶

Step-by-step explanation:

Given:

$\sf x=3.8 \times 10^5$

$\sf y=5.9 \times 10^4$

To calculate the value of R, substitute the given values into the given formula:

$\begin{aligned}\sf R & = \sf \dfrac{x^2}{y}\\\\ \implies \sf R& = \sf \dfrac{(3.8 \times 10^5)^2}{5.9 \times 10^4}\\\\& = \sf \dfrac{3.8^2 \times (10^5)^2}{5.9 \times 10^4}\\\\& = \sf \dfrac{14.44 \times 10^{10}}{5.9 \times 10^4}\\\\& = \sf \dfrac{14.44}{5.9} \times \dfrac{10^{10}}{10^4}\\\\& = \sf 2.4474... \times 10^{(10-4)}\\\\& = \sf 2.4474... \times 10^6\\\\\end{aligned}$