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yarga [219]
3 years ago
14

Help me pleaseeeeeeeeee

Mathematics
1 answer:
PIT_PIT [208]3 years ago
4 0

Answer:

y = 3x + 4

Step-by-step explanation:

✔️First, find the slope using any two given pairs form the table, say (2, 10) and (5, 19):

Slope (m) = ∆y/∆x = (19 - 10) / (5 - 2) = 9/3

m = 3

✔️Find y-intercept (b) by substituting (x, y) = (2, 10) and m = 3 into y = mx + b

10 = 3(2) + b

10 = 6 + b

10 - 6 = b

4 = b

b = 4

✔️Write the equation by substituing m = 3 and b = 4 into y = mx + b

y = 3x + 4

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the table shows the number of minutes Tim has for lunch and study hall. he calculates that these two periods account for 18% of
EleoNora [17]

Tim spends 500 minutes at the school.

Step-by-step explanation:

Given,

Time for lunch = 45 minutes

Time for study hall = 45 minutes

Total = 45+45 = 90 minutes

This represents 18% of the total minutes Tim spend at school.

Let,

x be the total minutes Tim spend at school.

18% of x = 90 minutes

\frac{18}{100}x=90\\\\0.18x=90

Dividing both sides by 0.18

\frac{0.18x}{0.18}=\frac{90}{0.18}\\x=500

Tim spends 500 minutes at the school.

Keywords: percentage, division

Learn more about division at:

  • brainly.com/question/101683
  • brainly.com/question/103144

#LearnwithBrainly

5 0
3 years ago
Exponent that will equal 32768
solmaris [256]
27 I think or something close to that hope that helps
8 0
3 years ago
the equation of a line is y=-1/2x+6. Write an equation in point-slope form for the same line. Explain the steps that you used.
Citrus2011 [14]
Y = -1/2x + 6.....the slope is -1/2 and the y int = 6 or (0,6)

y - y1 = m(x - x1)
slope(m) = -1/2
(0,6)....x1 = 0 and y1 = 6
now we sub
y - 6 = -1/2(x - 0) <==

** You basically just label ur variables and sub them into the point slope form


4 0
3 years ago
Consider this function.<br> (r) = -3r + 3<br> Which graph represents the inverse of function ?
4vir4ik [10]

9514 1404 393

Answer:

  C.  graph Y

Step-by-step explanation:

Starting with f(r) = -3r +3, the inverse function can be found from ...

  r = f(y)

  r = -3y +3

  r -3 = -3y

  (r -3)/-3 = y

  y = -1/3r +1

The inverse function will have a slightly negative slope and a y-intercept of 1. This matches graph Y.

3 0
3 years ago
Can some please show work and the answer to this problem
solmaris [256]
1. \lim_{x\to+-\infty}x^3-4x^2+x\\(+-\infty)^3-4(+-\infty)^2+(+-\infty)\\\infty,-\infty

2. \lim_{x \to +-\infty} x^4-4x^3+2x+8\\(+-\infty)^4-4(+-\infty)^3+2(+-\infty)+8\\\infty

3. \lim_{x \to +-\infty} -2x^3-4x^2+9\\-2(+-\infty)^3-4(+-\infty)^2+9\\-\infty,\infty

4. \lim_{x \to +-\infty} -x^4+9x^3+x^2+8x+2\\-(+-\infty)^4+9(+-\infty)^3+(+-\infty)^2+8(+-\infty)+2\\-\infty

4 is the only function that decreases as it approaches both infinities.
4 0
3 years ago
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