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cupoosta [38]
3 years ago
9

A mineral can be scratched by an iron nail. What can you conclude?

SAT
2 answers:
Helga [31]3 years ago
7 0

Answer:

The hardness is more than 2.5.

Explanation:

might be a different questions answer but i hope it helped

koban [17]3 years ago
4 0

Answer:

Explanation:

Ur dad left

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All of the following are good reasons to attend postsecondary institutions except:
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If 384 ft of fencing is available and the maximum area is desired, what will be the dimensions of the larger, outer rectangle? (
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The dimensions of the smaller holding pens from the parameters given are; 96 ft and 31 ft

<h3>What dimensions will maximize the area?</h3>

From the complete question, if the side lengths of the big rectangle are x and y, then the expression for the area A is:

A = x*y

Then perimeter since we have 384 ft of fencing available is;

2x + 2y = 384  

y = (384 - 2x)/2

y = 192 - x

Put 192 - x for y in area formula;

A = x(192 - x)

A = 192x - x²

Completing the square of this are equation gives;

A = 9216 - (x - 96)²

This means that A is maximum at x - 96 = 0

Thus, A is maximum when x = 96 ft

At A_max; y = 192 - 96 = 96 ft

Since the area of the bigger rectangle has been maximized, it means that we have also maximized the area of the smaller pens. Therefore its' dimensions will be;

x_small = 96 ft/3 = 31 ft

y_small = 96 ft

Read more about maximizing area at; brainly.com/question/9819619

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2 years ago
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3 years ago
Suppose during 2020 due to relief in Taxation Marginal Propensity to Consume (MPC) will increase from 0.65 to 0.75 then calculat
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Answer:

Tax multiplier = 3

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Given:

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Tax multiplier = 0.75 / 0.25

Tax multiplier = 3

7 0
3 years ago
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