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lakkis [162]
2 years ago
12

What is the value of the following expression? 23 + 5 • (10 - 9) - 12

Mathematics
1 answer:
prohojiy [21]2 years ago
3 0

Answer:

16

Step-by-step explanation:

Use the method of PEMDAS (Parenthesis, Exponent, multiplication, division, addition and then subtraction.)

When using this order you would do 10-9 first

23 + 5 * (10-9) - 12

23+ 5 * 1 - 12

then 5 times 1

23 + 5 * 1 - 12

23 + 5 - 12

then 23 + 5 and subract 12 from the solution

23 + 5 - 12

28 - 12 =

16

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Y = x² – 4 y = 2r + 4​<br><br>Solve algebraicallu for the solutions of equations below.
oksano4ka [1.4K]

Step-by-step explanation:

Okay, the first step is to rewrite this equation in "vertex form." You can search that up but it's basically just (h/k).

y = ( x − 1) 2 + 3

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By using the form we get 1 for the value a, 1 for the value h, and 3 for the value k.

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Solving that, we got a nice little 1/4.

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"Find the focus.

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(h,k+p)

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(1,134)

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

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Use the properties of the parabola to analyze and graph the parabola.

Direction: Opens Up

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Focus: (1,134)

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Select a few x values, and plug them into the equation to find the corresponding y values. The x values should be selected around the vertex.

xy−1704132437

Graph the parabola using its properties and the selected points.

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Focus: (1,134)

Axis of Symmetry: x=1

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xy−17041324"

(Sorry if this is long! But I hope you understand it better now! Thanks for the points!)

3 0
3 years ago
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Answer:

16)

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