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2 years ago

10

2/7+1/7+1/7= answer plss

2 answers:

Gnom [1K]2 years ago

7 0

Answer:

2÷7+1÷7+1÷7 = 0.57142857142

Leya [2.2K]2 years ago

6 0

Answer:

$\frac{4}{7}$

Step-by-step explanation:

$\frac{2}{7}$ + $\frac{1}{7}$ + $\frac{1}{7}$

= $\frac{2+1+1}{7}$

= $\frac{4}{7}$

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What’s your battery percentage

lisov135 [29]

Answer:

39%

Step-by-step explanation:

9 hours ago 100%

7 0

2 years ago

Find the least number by which 243 must be divided to make it a perfect<br> square.

yaroslaw [1]

Answer:

Step-by-step explanation:

Well I hate to break the news but 243 is not a perfect square. I'll work you through it, 243 is not a perfect square because it is not an even number. an even number must end in (0,2,4,6,8)
Step one. Find the square root. the square root of 243 is <em>15.588. </em>
Step two Is it a perfect square. No 243 just cant be a perfect square.
Hope this helped :)

4 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

Write the faction ration for each of the following.<br> If m

Aleksandr-060686 [28]

Answer:

$\tan D=\frac{7}{4},\\\\\sin D=\frac{7}{8.1}, \\\\\cos D=\frac{4}{8.1}, \\\\GI=5.0$

Step-by-step explanation:

In any right triangle, the following is true:

The sine of any angle is equal to its opposite side divided by the hypotenuse of the triangle. (o/h)

The cosines of any angle is equal to its adjacent side divided by the hypotenuse. (a/h)

The tangent of any angle is equal to its opposite side divided by its adjacent side. (o/a)

Thus,

$\text{3. }\\\tan D=\frac{7}{4},\\\\\sin D=\frac{7}{8.1}, \\\\\cos D=\frac{4}{8.1},$

$\text{4. }\tan 68^{\circ}=\frac{GI}{2},\\GI=2\tan68^{\circ}=4.95017370683\approx \boxed{5.0}$

4 0

3 years ago

Whats the answer all of them explain how to find which is greather 1/4 of 12 or 1/3 of 12 explain your answer

katrin [286]

Answer:

1/3 of 12 would be greater than 1/4 of 12.

Step-by-step explanation:

One third (1/3) of twelve results in 4. (Multiply 12/1 by 1/3 and simplify.)

One fourth (1/4) of twelve results in 3. (Multiply 12/1 by 1/4 and simplify.)

4 > 3.

Therefore, 1/3 of 12 is greater then 1/4 of 12.

5 0

3 years ago