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KATRIN_1 [288]
3 years ago
6

Can you tell me the ones I got wrong and which are the correct ones. Might need to zoom in. Will give brainly

Mathematics
1 answer:
Mama L [17]3 years ago
7 0

Answer:

I think

Step-by-step explanation:

y might be 50 degrees

z might be 40 degrees

w might be 140 degrees

x might be 130 degrees

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A submarine is only allowed to change its depth by rising toward the surface in 60-meters stages. it starts off at (-340) meters
hichkok12 [17]

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2 stages

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The width of a room is 60% of the land is 10 feet what is the area of the room
nikdorinn [45]
I believe it is 600.

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Assume that the side of each small square is 3 inches long. Find the total surface area of the rectangle prism represented by th
maxonik [38]

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Step-by-step explanation:

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3 years ago
A summer camp has 400 ft of float line with which to rope off three adjacent rectangular areas of a lake for swimming? lessons,
Rashid [163]

Answer:

a) A = x*(400 - 4*x)

b) domain of function A(x) is ( 0 , 100 )

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Step-by-step explanation:

Given:

- Total length of float-line used L = 400 ft

- Inner sections length x

Find:

a) Express the total area A as a function of x

b) Find the domain of the function

c) Using the graph, find the dimensions that leads to largest area

Solution:

- The amount of side length of the rectangle can be calculated from the total length given y:

                                 y = L - x - x - x - x

                                 y = L - 4*x

                                 y = 400 - 4*x

- The area of a rectangle is as follows:

                                 A = x*y

- Replace y with the expression derived first:

                                A = x*(400 - 4*x)

- To find the domain of the function we know that A >= 0:

                                 400*x - 4x^2 > 0

                                 x(400 - 4x) > 0

                                 x > 0 , 400 - 4*x < 0

                                 x < 100

- Hence, the domain of function A(x) is ( 0 , 100 )

- From the graph given, we can see that Area is maximum when x = 30 ft. Denoted by the turning point of the graph.

- Hence, the dimension of swimming section x = 30 ft maximizes area.

5 0
3 years ago
Rewrite in simplest terms: 3g-5(-3g+7)3g−5(−3g+7)
Marysya12 [62]

Answer:

Step-by-step explanation:

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