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MrMuchimi
3 years ago
6

Write an inequality and solve it for four more than a number is more than 13.

Mathematics
2 answers:
True [87]3 years ago
6 0
When you write it as an inequality you get x + 4 > 13
shepuryov [24]3 years ago
3 0

Answer: inequality 4+n>13

Solution 9

Step-by-step explanation:

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PLEASE HELP WILL MARK BRAINLIEST!
polet [3.4K]

Answer:

A

Step-by-step explanation:

2(1)+ 1(2)+ 2(3)+2(4)+ 3(5)/ 10

= 2+2+6+8+15/10

= 33/10

= 3.3

or A

if my answer helps please mark as brainliest.

3 0
3 years ago
The first few steps in solving the quadratic equation 8x2 + 80x = −5 by completing the square are shown.
azamat

Answer:

200

Step-by-step explanation:

8 * 25

6 0
2 years ago
Read 2 more answers
Answer my questions plz help
coldgirl [10]

9514 1404 393

Answer:

  • a = -2/3, b = 8, c = -24
  • y-intercept: (0, -24)
  • x = -b/(2a) = -8/(2(-2/3)) = 8(4/3)
  • x = 6
  • DOWN
  • Max: (6, 0)
  • Vertex: (6, 0)
  • Domain: {x | x ∈ ℝ}
  • Range: {x | x ≤ 0}

Step-by-step explanation:

To find a, b, c, compare the given function to ...

  f(x) = ax² +bx +c

You will see that ...

  • a = -2/3
  • b = 8
  • c = -24

The y-intercept is the function value for x=0. It is the constant term:

  y-intercept = f(0) = -24

Use the above values of a, b to find the line of symmetry.

  x = \dfrac{-b}{2a}=\dfrac{-8}{2\cdot\dfrac{-2}{3}}=8\cdot\dfrac{3}{4}=6

Per the calculation, the line of symmetry is ...

  x = 6

The negative leading coefficient tells you the parabola opens DOWN.

Because it opens down, the vertex at (6, 0) is a Maximum.

As with any polynomial, the domain is "all real numbers", hence any x that is an element of Reals.

The range is all values below the vertex (including the vertex), so is ...

  x ≤ 0

3 0
2 years ago
Show that the following rectangular form x^2+y^2=2xy can be expressed as 1 = sin(2) in polar form.
lara [203]

Answer:

Step-by-step explanation:

substitute x = r*cos(θ), y = r*sin(θ) ==> r²(cos²(θ) + sin²(θ)) = 2r²cos(θ)sin(θ). Cancel the r² on both sides. On the left, use pythagorean identity cos²(θ) + sin²(θ) = 1. On the right apply double angle identity sin(2θ) = 2cos(θ)sin(θ).

This yields 1=sin(2θ). (I assume you meant to type sin(2θ) on the right hand side of the equation).

7 0
2 years ago
Is y=3.7x a proportional relationship? Explain.
KonstantinChe [14]

Answer:

Yes

Step-by-step explanation:

y=3.7x starts with a (0,0) and it is a straight line nonetheless.

It isn't zig zag line and is a proportional relationship.

6 0
2 years ago
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