2 years ago

Need help with this algebra 2 question

Mathematics

1 answer:

loris [4]2 years ago

8 0

Answer:

Step-by-step explanation:

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Marco bought $30 worth of football cards. If he bought 12 packs of cards, how much does each pack of cards cost?

Mandarinka [93]

Answer:

2.5

Step-by-step explanation:

30/12=2.5

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2 years ago

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When the event is 1/9, the complement of the event is

mamaluj [8]

Answer:

$\frac{8}{9}$

Step-by-step explanation:

Complement of the event

$= 1 - \frac{1}{9} \\ = \frac{9 - 1}{9} \\ = \frac{8}{9} \\$

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3 years ago

The equation y=2(x-1)^2-5y=2(x−1)

marin [14]

Answer:

(b) It is symmetrical about $x = 1$

Step-by-step explanation:

Given

$y = 2(x - 1)^2 - 5$

See attachment for options

Required

True statement about the graph

First, we check the line of symmetric

$y = 2(x - 1)^2 - 5$

Expand

$y = 2(x^2 - 2x + 1) - 5$

Open bracket

$y = 2x^2 - 4x + 2 - 5$

$y = 2x^2 - 4x -3$

A quadratic equation $y = ax^2 + bx + c$ has the following line of symmetry

$x = -\frac{b}{2a}$

By comparison, the equation becomes:

$x = -\frac{-4}{2*2}$

$x = \frac{4}{4}$

$x = 1$

Hence, the line of symmetry is at: $x = 1$

(b) is true.

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3 years ago

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.

EastWind [94]

To find it multiply 2x5=10 = ^2=10 + 5=15

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3 years ago

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How many triangles can be constructed with angles measuring 60 degrees , 60 degrees, and 40 degrees?

polet [3.4K]

Answer:

Could be wrong but my answer would be none because the angles in a triangle have to add to 180 degrees

Step-by-step explanation:

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3 years ago