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3 years ago

What is the vertex of the function f(x) = x2 + 3x + ?

Mathematics

2 answers:

alexira [117]3 years ago

8 0

The vertex will be (-3), (-3)
Hope this helps!

netineya [11]3 years ago

4 0

It's Right, Thank you! X3

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HELP PLEASE !!!!!!!!

Paul [167]

Answer:

1. spends $80

2. Each garlic bread costs the same

3. Orders a pizza for 25.50 and two garlic breads

Step-by-step explanation:

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3 years ago

Read 2 more answers

A computer company makes a rectangular screen with a The dimensions of the computer screen are modeled by diagonal of 20 inches.

Novosadov [1.4K]

Answer:

x = 16

Step-by-step explanation:

The equation shown can be solved this way.

x^2 +(x -4)^2 = 20^2

x^2 +x^2 -8x +16 = 400

2x^2 -8x -384 = 0

x^2 -4x -192 = 0

(x -16)(x +12) = 0

The positive solution is ...

x = 16

_____

Since this makes use of the Pythagorean theorem, you've probably run across the 3-4-5 triangle. You often find scaled versions of it in algebra and geometry problems. Here, it is scaled by a factor of 4 to give a 12-16-20 triangle as half of the display screen.

The 3-4-5 triple is the only Pythagorean triple that is an arithmetic sequence. So, if the difference in side lengths is 4 and the diagonal is 5×4, you can be pretty certain that x = 4×4 and x-4 = 4×3.

6 0

2 years ago

Please help me as soon as possible!.!.!

aalyn [17]

You want to use the distributive property for this one:

-7k + 21
Your answer should be the very bottom left one.
Hopefully thta helped! :)

8 0

3 years ago

Which of the following graphs shows a proportional relationship?

Vlada [557]

C.

In a proportion your numbers increase by the product of the proportion. So if at one point in your graph you had (2,20), the proportion is 10 (2*10=20). Therefore your next points should be 3,30 ;4,40 ; 5,50. Etc.

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3 years ago

The Cooper family, consisting of 6 children and 2 adults, goes to the movies and pays a total of $86. The Griffen birthday party

Oksanka [162]

Answer: The cost of child's ticket = $10

The cost of adult ticket = $ 13

Step-by-step explanation:

Let x be the cost of a child ticket and y be the cost of an adult ticket.

Then According to the question, we have

$6x+2y=86..........................(1)\\\\10x+3y=139.......................(2)$