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hammer [34]
3 years ago
7

What is 2 times 4 i need a answer

Mathematics
1 answer:
ollegr [7]3 years ago
7 0

Answer:

8

Step-by-step explanation:

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A hill rises 80ft for every horizontal 220f. find the slope
zlopas [31]

Hello it should be 220ft not 220f!

Slope or gradient is vertical rise divided by horizontal rise

80ft/220ft = 4/11


3 0
3 years ago
Find the inverse: f(x)= x+2/3
Kobotan [32]
I’m not sure if this is right but f(x) = 1/x + 3/2 ?
4 0
2 years ago
Built around 2600 BCE, the Great Pyramid of Giza in Egypt is 485 ft high (due to erosion, its current height is slightly less) a
Morgarella [4.7K]

Answer:1.69*10^12 J

Step-by-step explanation:

From figure above, using triangle ratio

485/755.5=y/l. Cross multiplying 485l=755.5y Divide via 485) hence l= 755.5y/485

Consider a slice volume Vslice= (755.5y/485)^2∆y; recall density =150lb/ft^3

Force slice = 150*755.5^2.y^2.∆y/485^2

From figure 2 in the attachment work done for elementary sclice

Wslice= 150.755.5^2.y^2.∆y.(485-y)/485^2

= (150*755.5^2*y^2)(485-y)∆y/485

To calculate the total work we integrate from y=0 to y= 485

Ie W=[ integral of 150*755.5^2 *y^2(485-y)dy/485] at y=0 and y= 485

Integrating the above

W= 150*755.5^2/485[485*y^3/3-y^4/4] at y= 0 and y=485

W= 150*755.5^2/485(485*485^3/3-484^4/4)-(485.0^3/3-0^4/4)

Work done 1.69*10^12joules

7 0
3 years ago
Make n the subject of the formula: M=3n
natta225 [31]
Divide each side by 3. ----- n=M/3 .
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3 years ago
Which word describes the slope of the line?<br> o positive<br> O negative<br> O zero<br> undefined
4vir4ik [10]
I’m not to sure my my guess is zero because it is not going up or down
7 0
2 years ago
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