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2 years ago

What is the constant of proportionality, y/x

Mathematics

2 answers:

Dvinal [7]2 years ago

7 0

Answer:

k = 0.5

Step-by-step explanation:

Proportional relationship:

y = kx, where k- constant of proportionality

Using point on the graph (1, 0.5) to find the value of k:

0.5 = k*1
0.5 = k
k = 0.5

Charra [1.4K]2 years ago

6 0

Answer:

1/2

Step-by-step explanation:

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What is the period of the graph of y=2 cos (pie/3 x ) +3 A.2 B.3/pie C.6 D.pie/3

Tatiana [17]

Equate what is inside cosine with $2\pi$ , base period and solve for x,

$2\pi=\frac{\pi}{3}x$

$6\pi=\pi x$

$\boxed{x=6}$

Hope this helps :)

6 0

2 years ago

Eli needs pieces of ribbon cut into strips that are 2 1/2 feet long. The roll of ribbon is 7 1/2 feet long. Which expression cou

Lady bird [3.3K]

3 strips of 2.5 feet can be cut from the 7.5 feet long roll of ribbon.

Step-by-step explanation:

DATA:

Length of strips Eli need is 2.5 feet long

Length of roll of ribbon is 7.5 feet long

Number of strips that can be cut from the 7.5 feet long roll is x

SOLUTION:

To determine how many strips can be cut, divide total length of roll of ribbon by the length of strips needed.

Number of strips that can be cut = $\frac{Total Length of roll}{Length of strips needed}$

x = $\frac{7.5}{2.5}$ (expression)

x = 3 strips

Therefore, 3 strips of 2.5 feet can be cut from the 7.5 feet long roll of ribbon.

Key words: fraction

Learn more about fractions at

#LearnwithBrainly

4 0

2 years ago

6+4-(4x2)+22^3=?? Can someone help! PLEASE THIS IS MY THIRD TIME ASKING PLEASE HELPPP

Keith_Richards [23]

Answer:

The answer is 10,650. Just use the calculator next time you get one of these questions. :D

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2 years ago

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Square ABCD and isosceles triangle BUC are drawn to create trapezoid AUCD. Square A B C D and triangle B U C are attached at sid

Art [367]

Answer:

d) 135º

Step-by-step explanation:

Note that the angle DCU is the sum of the angles DCB and BCU. The angle DCB is 90º because A B C D is a square, then all its angles are equal to 90º.

After attaching B U C to A B C D, we obtain a trapezoid A U C D. Since A U C D has at least one pair of parallel sides, then AU should be parallel to CD, thus the angle CBU must be 90º.

B U C is isoceles, so we conclude that other two angles must have the same size, and due to the sum of the angles of a triangle being 180º, then both BUC and BCU are equal to 45º

As a result, the angle DCU is equal to 90º+45º = 135º. Option d is the correct one.

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3 years ago

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Write the standard equation of the circle: x^2 +2x + y^2 =55 +10y

lidiya [134]

$x^2 +2x + y^2 =55 +10y\\(x+1)^2+(y-5)^2=81$

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2 years ago