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quester [9]
2 years ago
8

What's the answer to this hard question?

Mathematics
1 answer:
Hitman42 [59]2 years ago
5 0
The answer is B. You have to solve each equation for y and then check the y-intercepts/slopes
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The population decrease caused by the plague led to an economic depression. Merchants and tradespeople had fewer people to whom
tensa zangetsu [6.8K]

Answer:

Due to the high number of deaths and the subsequent population reduction, the merchants - and tradespeople in general - saw a decrease in the sales of their merchandise. Once the number of infected people by the plague reduced was reduced at the end of the Fifteenth Century, the population grew exponentially, thus creating a higher demand for services and goods.

7 0
2 years ago
A closed box with a square base is to have a volume of 13 comma 500 cm cubed. The material for the top and bottom of the box cos
andrezito [222]

Answer:

x  =  1,5 cm

h  =  6  cm

C(min) = 135 $

Step-by-step explanation:

Volume of the box is :

V(b)  = 13,5 cm³

Aea of the top is equal to area of the base,

Let call  " x " side of the base then as it is square area is A₁ = x²

Sides areas are 4 each one equal to x * h  (where h is the high of the box)

And volume of the box is   13,5 cm³  = x²*h

Then   h  =  13,5/x²

Side area is :  A₂ =  x* 13,5/x²

A(b)  = A₁  + A₂

Total area of the box as functon of x is:

A(x)  = 2*x²  + 4* 13,5 / x

And finally cost of the box is

C(x)  = 10*2*x²   +  2.50*4*13.5/x

C(x)  = 20*x²  +  135/x

Taking derivatives on both sides of the equation:

C´(x)  =  40*x   -  135*/x²

C´(x)  = 0     ⇒      40*x   -  135*/x² = 0    ⇒  40*x³ = 135

x³  = 3.375

x  = 1,5 cm

And   h  =  13,5/x²     ⇒   h  =  13,5/ (1,5)²

h = 6 cm

C(min)  = 20*x²  + 135/x

C(min)  = 45  +  90

C(min)  = 135 $

8 0
3 years ago
I need help on my story problems 
victus00 [196]
1) 3/4 - 1/2 = 3/4 - 2/4 = 1/4. Vanessa's brothers ate half of the cake. 

2) 1.75 + 2.4 = 4.15.  6.5 - 4.15 = 2.35.  4.15 = 2.35 = 1.8.  Chad hiked 1.8 ore miles in the morning than in the afternoon. 
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3 years ago
How many quarts does the faucet leak per hour?
Citrus2011 [14]
Answer) -5/2 quarts per hour
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2 years ago
Kirk is helping his grandparents set up their new portable music players. His grandmother, Maude, has 1 jazz album, 2 country-we
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Kirk'so grandmother, Maude because she has 5 heavy metal albums out of 8 of all of her album collection. 5/8 equals 0.625 which is greater than Claude percentage of 0.58333333333
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