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3 years ago

The perimeter of parallelogram PQSR is 74 cm. What is QS? 4 cm 6 cm 8 cm 12 cm

Mathematics

2 answers:

ivanzaharov [21]3 years ago

5 0

Answer:

it is 6 cm

Step-by-step explanation:

kenny6666 [7]3 years ago

4 0

6 cm I took the test and got the correct answer

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Help plz 100 points and brainly.

Naya [18.7K]

Answer:

identification from the table given below. use y = mx + c to solve

Step-by-step explanation:

y = 3x to third

y = 1.5x -7 to second

y =7 to first

y = -1.5x-4 to fifth

y = -3x+4 to fourth

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2 years ago

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Based on What you learned about economics of organic produce, explain why buying organic food is so expensive

Elis [28]

Answer:(:

Step-by-step explanation:

Organic food production is usually more labour and management intensive and happens on a smaller scale ie on smaller farms which lack the benefit of economy of scale.

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3 years ago

In the graphic below, the measure of angle ABC is:

ArbitrLikvidat [17]

(Angle ABD) + (Angle ABC) = 180
Angle ABC = 180 - (Angle ABD)
Angle ABC = 180 - 37
Angle ABC = 143

Answer: Choice A) 143 degrees

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3 years ago

Use the discriminant to determine all values of k which would result in the graph of

Shalnov [3]

Answer:

k > 100

Step-by-step explanation:

y= x²+20x+k

if the graph doesn't intersect the x-axis it means it has no real roots so the discriminat has to be negative so will have imaginary roots

discriminant is

b²-4ac = 20²-4*1*k = 400-4k for this to be negative k has to be more then 100 so will have 400 - a number bigger then 400

k > 100 is the solution

7 0

3 years ago

Find the work (in ft-lb) required to pump all the water out of a cylinder that has a circular base of radius 7 ft and height 200

Virty [35]

Answer:

work done is equal to 384279168 lb-ft

Step-by-step explanation:

The cylinder has a circular base of 7 ft.

The height of the cylinder is 200 ft

The weight density of water in the cylinder is 62.4 lb/ft^3

First, we find the volume of the water in the cylinder by finding the volume of this cylinder occupied by the water.

The volume of a cylinder is given as $\pi r^{2} h$

where, r is the radius,

and h is the height of the cylinder.

the volume of the cylinder = $3.142* 7^{2}*200$ = 30791.6 ft^3

Since the weight density of water is 62.4 lb/ft^3, then, the weight of the water within the cylinder will be...

weight of water = 62.4 x 30791.6 = 1921395.84 lb

We know that the whole weight of the water will have to be pumped out over the height of cylindrical container. Also, we know that the work that will be done in moving this weight of water over this height will be the product of the weight of water, and the height over which it is pumped. Therefore...

The work done in pumping the water out of the container will be

==> (weight of water) x (height of cylinder) = 1921395.84 x 200

==> work done is equal to 384279168 lb-ft

7 0

4 years ago