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Juli2301 [7.4K]
3 years ago
11

Question 1b? please help?

Mathematics
1 answer:
Alborosie3 years ago
5 0
I hope this may help.u

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What is the slope of the line that passes through the points (-4,8) qnd (-14,8)
Mila [183]

Answer:

-0/10

Step-by-step explanation:

y2-y1      rise

-------- = --------

x2-x1       run

6 0
3 years ago
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Solve the system of equations using elimination/combinations.
const2013 [10]

Answer:

The solution is (1,2)

Step-by-step explanation:

- 2x - y = - 4

 x + 2y = 5

Multiply the second equation by 2 so we can eliminate x

2( x + 2y) = 5*2

2x +4y = 10

Add this to the first equation

- 2x - y = - 4

2x +4y = 10

----------------------

3y = 6

Divide each side by 3

3y/3 = 6/3

y = 2

- 2x - y = - 4

 x + 2y = 5

Multiply the first equation by 2 to eliminate y

2(- 2x - y) = - 4*2

-4x -2y = -8

Add this to the second equation

-4x -2y = -8

x + 2y = 5

------------------

-3x = -3

Divide by -3

-3x/-3 = -3/-3

x = 1

The solution is (1,2)

3 0
3 years ago
Someone help me out really quick
monitta

Answer:

Roots: 3.746 and -13.746

Vertex: (-5, 153)

Step-by-step explanation:

  • The roots of the quadratic equation y = ax² + bx + c, are the values of x at y = 0
  • Its vertex is (h, k), where, h = \frac{-b}{2a} , and k is the value of y at x = h

Let us use these facts to solve the question

∵ y = -2x² - 20x + 103

→ Compare it by the form of the equation above

∴ a = -2, b = -20, and c = 103

→ To find its roots equate y by 0

∵ 0 = -2x² - 20x + 103

→ Use your calculator to find the values of x

∴ x = 3.746427842 and x = -13.74642784

→ Round them to 3 decimal places

∴ x = 3.746 and x = -13.746

∴ Roots: 3.746 and -13.746

→ To find its vertex use the rule of h above

∵ a = -2 and b = -20

∵ h = \frac{--20}{-2(2)} = \frac{20}{-4}

∴ h = -5

→ To find k substitute y by k and x by -10 in the equation

∵ k = -2(-5)² - 20(-5) + 103

∴ k = -2(25) + 100 + 103

∴ k = -50 + 100 + 103

∴ k = 153

∴ The vertex of the quadratic is (-5, 153)

∴ Vertex: (-5, 153)

3 0
3 years ago
Please please i need help i did not understand it<br> please do it .........
cestrela7 [59]
Hanapin mo lang ang voluem nya at ang with
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3 years ago
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Is x great thank, less than or equal to 146
bogdanovich [222]

Answer:

i think its less than

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3 years ago
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