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kondor19780726 [428]
4 years ago
15

Gemstones are very expensive minerals. What are these pricey minerals used for?

Mathematics
1 answer:
maria [59]4 years ago
3 0
Gemstones are generally used for jewelry
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Josh wants to put a fence around his rectangular garden. The garden is 6 feet bt 15 feet. How much fencing must he purshase ?
Anna35 [415]

Since the garden is a rectangle, there are 2 sides that are 6-ft long
and two sides that are 15-ft long.

So he needs  (2 x 6) + (2 x 15) = (12) + (30) = 42-ft of fence.  Minimum.
6 0
4 years ago
Dimostra che un quadrato è equiva-
podryga [215]

In un quadrato di lato l, l'ipotenusa è l\sqrt{2}. Pertanto, l'area del quadrato è l^2, mentre il quadrato costruito sull'ipotenusa è (l\sqrt{2})^2=2l^2.

Come puoi vedere, una quantità è la metà dell'altra.

3 0
4 years ago
A certain radioactive isotope decays at a rate of 0.3​% annually. Determine the ​half-life of this​ isotope, to the nearest year
Liono4ka [1.6K]

This could be rephrased as:

You start with 100 grams of a substance.  One year later you have 70 grams.  What is the half-life?

We need this formula:

half-life = (time * natural log (2)) / natural log (beginning amount / ending amt)

half-life = (1 year * .69315) / natural log (100 / 70)

half-life = (.69315) / 0.35667494396

half-life = 1.9433661145 years

Rounding to nearest year half-life = 2 years

Sourse: https://www.1728.org/halflif2.htm

(See problem 3)


7 0
4 years ago
Drag numbers to write an equation for the line in slope-intercept form. Numbers may be used once, more than once, or not at all.
Volgvan

Answer:

Slope: -4

Y-intercept: 5

Step-by-step explanation:

The slope goes down 4 and over one which means that the slope is -4.

When X is 0, Y is 5

Good Luck!!

5 0
3 years ago
What is the result of subtracting in the division problem shown below?
Allushta [10]

Answer:

9x² - 6x

Step-by-step explanation:

Thats the answer in edgenuity student :)

3 0
3 years ago
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