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2 years ago

Does y=0.5x-2 represent a proportional relationship?

Mathematics

1 answer:

grandymaker [24]2 years ago

5 0

<h2>Answer::</h2>

An equation has a proportional relationship if it can be written in the form y=kx where k is the constant of proportionality.

a.y=0.5x−2a.y=0.5x−2 does not have a proportional relationship since it has the term −2 on the right side.

b.y=1,000xb.y=1,000x has a proportional relationship with a constant of proportionality of 1,000.

c.y=x+1c.y=x+1 does not have a proportional relationship since it has the term 1 on the right side.

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The value of a piece of land is $500 an acre. The price per acre is expected to increase 7% per year. Which function models the

kobusy [5.1K]

To set the equation,we can first find how much price would be raised within a year:

=500×(1+7%)

=500×1.07

As the years go by the increase would accumulate,and the equation would be:

$500 \times {1.07}^{t}$
Hope it helps!

4 0

3 years ago

Help me with the question in the pic please and thank u!

Zepler [3.9K]

Answer:

1.98

Step-by-step explanation:

In this problem, we are:

Given: ∠D = 26°, Hypotenuse (DF) = 4.5

To solve: EF

Now through the given, we are to focus on point D to solve for EF.

We need to find the relationship of point D to DF and EF.

The relationship here is sine.

Reason: $\frac{opposite}{hypotenuse}$

Through point D, DF is the hypotenuse and EF is the opposite side.

So let's solve this simply through algebra,

sin = $\frac{opposite}{hypotenuse}$

sin(26°) = $\frac{EF}{4.5}$

0.44 = $\frac{EF}{4.5}$

0.44 × 4.5 = EF

1.98 = EF

7 0

3 years ago

s quadrilateral JKLM the result of a dilation of quadrilateral ABCD by a scale factor of 2? Why or why not?

Likurg_2 [28]

If quadrilateral JKLM has given values, as well as quadrilateral ABCD, it can be concluded from the given values if JKLM is a result of a dilation of ABCD by a scale factor of 2. Dilation factor is used to scale up a given figure. If ABCD has measurements of 1, 2, 3, and 4. Then the measurements of JKLM should be 4, 8, 12, and 16.

4 0

3 years ago

What are the measurements of the little 2 small cube things on each side, better yet what's the surface area? Thank you

Arisa [49]

Answer:

166 units²

Step-by-step explanation:

We know that:

W = 7
L = 5
H = 4

Surface area is the area of the faces of the cuboid.

Work:

=> 2(7 x 4) + 2(5 x 4) + 2(5 x 7)
=> 2(28) + 2(20) + 2(35)
=> 56 + 40 + 70
=> 166 units²

Hence, Option C is correct.

Hoped this helped.

$BrainiacUser1357$

4 0

2 years ago

John bought a cell phone for 99 dollars and 7% sales tax was added at the register John gave the cashier six $20 bills how much

frozen [14]

He will receive $14.07 in change.

5 0

3 years ago

Read 2 more answers