3 years ago

Please help solve this

Mathematics

1 answer:

-BARSIC- [3]3 years ago

6 0

Answer:

This a test?

Step-by-step explanation:

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Find the work done in winding up a 175 ft cable that weighs 3 lb/ft.

nignag [31]

Answer:

$work \ done= 45937.5$

Step-by-step explanation:

Work done is given by

$work \ done=\int_a^b w(d-x) \ dx$ , where d = length of cable and w = weight of cable.

Here, d = 175 ft and w = 3 lb/ft

Now, $work \ done=\int_0^{175} 3(175-x) \ dx$

$work \ done= 3\left [175x-\frac{x^2}{2} \right ]_0^{175}$

$work \ done= 3\left [175^2-\frac{175^2}{2} \right ]$

$work \ done= 3\cdot \frac{175^2}{2}$

$work \ done= 45937.5$

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3 years ago

You are budgeting $26 a day per person for meals. your group has 4 people for 5 days. what is the meal budget total?

mezya [45]

$520
First, you multiply 26 by 4.
Then you multiply the product (104) by 5.

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2 years ago

Determine if the sequence below is arithmetic or geometric and determine the

crimeas [40]

Answer:

Common difference is 4

Step-by-step explanation:

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2 years ago

If the scale factor between two circles is 7a/9b what is the ratio of their areas?

RideAnS [48]

<span>. 49a2/81b2
I think the answer is B)</span>

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2 years ago

Read 2 more answers

The length of the base of an isosceles triangle is x. The length of a leg is 2x-6. The perimeter of the triangle is 38. Find X

Norma-Jean [14]

Answer:

x = 10

Step-by-step explanation:

Perimeter of a triangle = the sum of the three sides.

In an isosceles the legs are equal (2x - 6) and the base is x

Perimeter = (x) + (2x - 6) + (2x - 6)

38 = 5x - 12

38 + 12 = 5x

50 = 5x

$\frac{50}{5} = \frac{5x}{5}$

10 = x

8 0

2 years ago