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2 years ago

Does the table below represent a proportional relationship? Show your work to prove

Mathematics

1 answer:

dolphi86 [110]2 years ago

7 0

Answer:

the table does represent a propor. rela. since y=12x

you can multiply the x values by 12 and that y value will be just that, and in this case, all of them are multiplied by 12.

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zzz [600]

Answer:

Solution; x = - 2, x = 5

Step-by-step explanation:

We are given the following equation 2x^2 + 2x + 12 = 3x^2 - x + 2;

2x^2 + 2x + 12 = 3x^2 - x + 2 ⇒ Subtract 2 from either side,

2x^2 + 2x + 10 = 3x^2 - x ⇒ Add x on either side,

2x^2 + 2x + 10 = 3x^2 ⇒ Subtract 3x^2 on either side, simplifying result,

- x^2 + 3x + 10 = 0 ⇒ Factor out common term - 1,

- ( x^2 - 3x - 10 ) = 0 ⇒ Break expression into groups,

- ( x^2 + 2x ) + ( - 5x - 10 ) = 0⇒ Factor x from x^2 + 2x , and - 5 from - 5x - 10,

- ( x( x + 2 ) ) - 5( x + 2 ) = 0 ⇒ Factor out common term x + 2,

- ( x + 2 )( x - 5 ) = 0 ⇒ Apply Zero Factor Principle,

x + 2 = 0, and x - 5 = 0 ⇒ Simplify,

Solution; x = - 2, x = 5

7 0

2 years ago

It costs the school band SS dollars per sandwich that they make. The band sells each sandwich for 20\%20% more than it costs to

Annette [7]

Money Required for making 1 Sandwich that is Cost Price of 1 Sandwich = S Dollar

Selling Price of 1 Sandwich = 20 % more than Cost Price S

= S + 20 % of S

= $\frac{20S}{100}+S=\frac{120S}{100}$

=$ 1.20 S

= $(S + 0.20 S)

Selling Price of 73 Sandwiches = $ 73 (S + 0.20 S)

The expression $73(S+0.2 S) →→ Selling Price of 73 Sandwiches

5 0

3 years ago

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For what x value(s) does f(x) = 4?

k0ka [10]

Answer:

1,2

Step-by-step explanation:

f(x) always equals y. So basically, y = 4. The only factor that goes into 4 is 2, because 2 x 2 equals 4, and always 4 x 1 will equal 4.

6 0

3 years ago

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0.091hm convert it's height in meter (explanation)

yarga [219]

Answer:

9.1

Step-by-step explanation

1 hm = 100m

0.091 * 100 = 9.1

8 0

3 years ago

The graphs below have the same shape. What is the equation of the blue

frutty [35]

Using a graph tool
see the attache figure

the answer is the option B
g(x)=(x-5)²

4 0

3 years ago

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