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lisov135 [29]
3 years ago
9

Given the function: f(x) = 2x2 - 3x + 8, find f(-2).

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer: 22

<u>Step-by-step explanation:</u>

f(x) = 2x² - 3x + 8

f(-2) = 2(-2)² - 3(-2) + 8

       = 2(4) + 6 + 8

       = 8 + 6 + 8

       = 22

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How would you translate this situation below into an algebraic expression?
Natasha2012 [34]
Dime value: $0.10
Nickel value: $0.05

For this word problem, you are asked to create an algebraic expression (an equation) for the unknown variables. 

Now, we know that a dime is worth $0.10 or 10 cents and a nickel is worth $0.05 or 5 cents. So, all you would have to do is create an equation that takes those values into account. 
5n + 10d

Your algebraic expression would be B. 5n + 10d

I hope this helps!
5 0
3 years ago
1) Sir Arthur Conan Doyle used footprint evidence in 29 of the 60 stories he wrote about Sherlock Holmes, the British detective.
nalin [4]

Answer: D

Tracing

Step-by-step explanation:

Sir Arthur Conan Doyle, author of the Sherlock Holmes stories, was credited as an influence to forensic science due to his character's use of methods such as fingerprints, serology, ciphers, trace evidence, and footprints long before they were commonly used by actual British and American police forces.

8 0
3 years ago
The solution set of the inequality 2x − y &gt; 2 consists of all the points __ ? the line __ ?
GalinKa [24]

Answer:

  • b - below; y = 2x − 2

Step-by-step explanation:

  • 2x − y > 2
  • 2x - y + y - 2 > 2 + y - 2
  • 2x - 2 > y
  • y < 2x - 2

Solution is the points below the line y = 2x - 2

<u>Correct option is:</u>

  • b - below; y = 2x − 2
7 0
3 years ago
Kona wants to bake at most 30 loaves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50, a
frutty [35]

x+y≤30 and 2.50x+2.75y≥44 are the inequalities that model given situation.

Step-by-step explanation:

Given,

Number of banana breads and nut breads to bake = at most 30

At most 30 means the amount cannot exceed 30.

Selling price of each banana bread = $2.50

Selling price of each nut bread = $2.75

Amount to make = $44 at least

At least 44 means that the amount cannot be less than 44.

Let,

x represent the number of loaves of banana bread to be sold

y represent the number of loaves of nut bread to be sold

x+y≤30

2.50x+2.75y≥44

x+y≤30 and 2.50x+2.75y≥44 are the inequalities that model given situation.

Keywords: linear inequalities, addition

Learn more about linear inequalities at:

  • brainly.com/question/4793866
  • brainly.com/question/4824362

#LearnwithBrainly

5 0
3 years ago
My friend sent me this to work on, but I’m confused on how to do it :(
marin [14]

Answer:

35 degrees.

Step-by-step explanation:

It's a reflective sideway triangle.

8 0
2 years ago
Read 2 more answers
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