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marta [7]
3 years ago
7

Need some help with this​

Mathematics
2 answers:
77julia77 [94]3 years ago
5 0

Answer: Fourth Choice. 9

Concept:

Here, we need to know the idea of linear equations.

Linear equations are equations of the first order or basically in a straight line.

Linear equations can appear in different forms.

  • Slope-intercept form: y = mx + b
  • Point-slope form: y - y₁ = m (x - x₁)
  • Standard form: Ax + Bx = C
  • Intercept form: x / x₁ + y / y₁ = 1

Solve:

<u>STEP ONE: Determine the form of the equation</u>

y = (1 / 2)x + 9

There is a [m] and a [b], therefore, it is slope-intercept form.

In slope-intercept form, y = mx + b, where:

  • m = slope
  • b = y-intercept

<u />

<u>STEP TWO: Determine the y-intercept</u>

y = (1 / 2)x + 9

m = 1 / 2

b = 9

Therefore, the y-intercept is <u>9</u>

Hope this helps!! :)

Please let me know if you have any questions

sergij07 [2.7K]3 years ago
4 0

Answer:

gradient 1/2, y-intercept 9

Step-by-step exp

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andrew11 [14]

Answer:

a. the order processing fee changed to $ 15 and each bottle charge changed to 115%

b. the equation of cost will be changed to : (1.2 x 1.15) b + 15 = 1.38b + 15

Step-by-step explanation:

a. the order processing fee changed to $ 15 and each bottle charge changed to 115%

b. the equation of cost will be changed to : (1.2 x 1.15) b + 15 = 1.38b + 15

* this equation limited to a single order with b bottles

3 0
3 years ago
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Help me please thank you
viktelen [127]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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boyakko [2]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What’s the formula for the series -5,10,-20,40
diamong [38]

Answer:

Stare at it long enough. You will notice that with each step you double the value, and change sign. It makes it a geometric sequence of ratio -2. At this point you have two ways of writing down:

Option 1: Ricorsively, the first term is -5, then the next term is -2 times the previous one:

\left \{ {{a_0=-5} \atop {a_{n+1}=-2a_n}} \right.

Option 2: In closed form, remembering that the n-th term in a geometric sequence is the starting term times the n-th power of the ratio:

a_n=-5 (-2)^n

Either work, depending on what you need to use it for.

6 0
3 years ago
The radius of a car wheel is 12 inches. How far will the car travel and 15 revolutions of the wheel?
viktelen [127]
R = 12 inches, the radius of the wheel.

The circumference of the wheel is
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WHen the wheel makes 15 revolutions, the car will travel 15 times the circumference, which is
15*(24π) = 360π inches = 1131 inches.

Answer: 1131 inches
7 0
3 years ago
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