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AlexFokin [52]
3 years ago
9

Can someone plz help me really fast

Mathematics
2 answers:
11111nata11111 [884]3 years ago
6 0
The 3rd option's the correct answer
UNO [17]3 years ago
5 0
Between 15 and 20 miles per gallon. 

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Common denominator between six and 44
Scilla [17]

The Least Common Multiple of 6 and 44 is 132.

4 0
3 years ago
What is the value of x in this simplified expression
arsen [322]

Answer:

7

Step-by-step explanation:

  • (-j)^-7 = 1/(-j)^x

Changing LHS as

  • 1/(-j)^7 = 1/(-j)^x

Comparing LHS and RHS

  • x = 7
8 0
3 years ago
Write each power as a product of the Same factor then find the value 1. 4^3 2. 2^6 3. 8^4 4. 12^2​
qwelly [4]

Answer:

15^3=15×15×15=3375

0^4=0×0×0×0=0

5^5=5×5×5×5×5=3125

3.5^2=3.5×3.5=12.25

6^5=6×6×6×6×6=7776

7^4=7×7×7×7=2401

1^8=1×1×1×1×1×1×1×1=1

2.5^3=2.5×2.5×2.5=15.625

Step-by-step explanation:

7 0
3 years ago
A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 60 ft deep. The bucket is f
mestny [16]

Answer:

The value is W= 2640 \  ft \cdot lb

Step-by-step explanation:

From the question we are told that

The weight of the bucket is F =  5 lb

The depth of the well is x_1 =  60 \ ft

The weight of the water is W_w  =  42 lb

The rate at which the bucket with water is pulled is v  = 1.5 \  ft/s

The rate of the leak is r = 0.15 lb/s

Generally the workdone is mathematically represented as

W =  \int\limits^{x_1}_{x_o} {G(x)} \, dx]

Here G(x) is a function defining the weight of the system (water and bucket ) and it is mathematically represented as

G(x) =  F  +  (W_w- Ix)

Here I is the rate of water loss in lb/ft mathematically represented as

I  = \frac{r}{v}

=> I  = \frac{0.15 }{1.5 }

=> I  = 0.1

So

G(x) =  5  +  (42- 0.1x)

=> G(x) =  47- 0.1x)

So

W =  \int\limits^{60}_{0} {47- 0.1x} \, dx]

=> W =  [47x - \frac{0.1x^2}{2} ]|\left 60} \atop {0}} \right.

=> W= [47(60) - 0.05(60)^2]

=> W= 2640 \  ft \cdot lb

7 0
3 years ago
The ratio of the number of girls to all students in the class is 4:9 can there be 20 students in that class?
zaharov [31]

Answer:

nooo.......how there can only be 20 students.....!

7 0
3 years ago
Read 2 more answers
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