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Anuta_ua [19.1K]
2 years ago
7

Identify the equation that represents a proportional relationship.

Mathematics
1 answer:
Ket [755]2 years ago
4 0

Answer:

c. y=2x

Step-by-step explanation:

I'd generally say this would depend on what your definition of proportional is, but there's still one clear answer in this case regardless.

Here, a direct proportional relationship will pass through (0, 0), meaning it will not have a y-intercept and y will be 0 when x is 0.

y=mx+b

Because b is the y-intercept, C is the answer as it is the only answer that does not have one.

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Match each scenario with the type of correlation it shows.
Arisa [49]

Answer:

The number of items bought and the checking account balance - negative correlation

The height of a baseball player and the number of hits made- no correlation

The time spent practicing and the number of free throws made- positive correlation

Step-by-step explanation:

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4 years ago
Help picture below problem 13
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Answer:

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Step-by-step explanation:

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3 years ago
A pole that is 2.6 m tall casts a shadow that is 1.03 m long. At the same time, a nearby tower casts a shadow that is 46.25 m lo
photoshop1234 [79]

Answer:

Therefore the height of the tower is 116.75 m.

Step-by-step explanation:

Given that a pole that is 2.6 m tall casts a shadow that is 1.03 m long.

Here the height of a object directly proportional to the shadow. It means

Height of the object ∝ shadow

Height of the object= k.shadow

[k is the proportional constant.]

\Rightarrow \frac{h}{s} =k    [Height of object is denoted by h and shadow is denoted by s]

Then,

\frac{h_1}{s_1} =k       [h₁ is the height of the pole and s₁is the length of the shadow]

Again for the tower

\frac{h_2}{s_2}=k      [h₂ is the height of the tower and s₂ is the length of the shadow]

Therefore,

\frac{h_1}{s_1}=\frac{h_2}{s_2} =k

\Rightarrow\frac{h_1}{s_1}=\frac{h_2}{s_2}............(1)

Given h_1 = 2.6 m  ,s_1=1.03m  and   s_2=46.25m

Putting the value of h_1,s_1 and s_2  equation (1)

\frac{2.6}{1.03}=\frac{h_2}{46.25}

\Rightarrow h_2 \times1.03= 2.6\times 46.25          [cross multiplication]

\Rightarrow h_2 = \frac{2.6\times 46.25}{1.03}

\Rightarrow h_2= 116.75

Therefore the height of the tower is 116.75 m.

3 0
3 years ago
I need help with this algebra nation question. The first drop down box says even or odd. the second drop down box says negative
BaLLatris [955]
1. odd number
2. positive answer
3 .4 <span>zeros </span>
6 0
4 years ago
(3x - 9) + x + (x + 28) = 184.
julia-pushkina [17]

Answer:

33

Step-by-step explanation:

rearrange and combine like terms

(3x - 9) + x + (x + 28) = 184

3x - 9 + x + x + 28 = 184

3x + x + x + 28 - 9 = 184

3x + x + x = 184 + 9 - 28

5x = 165

x = 33

3 0
3 years ago
Read 2 more answers
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