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Flauer [41]
3 years ago
11

Help me with these two questions , please they are due in some hours

Mathematics
1 answer:
mario62 [17]3 years ago
8 0
For the first   the correct answer is  C 

the second 
the perimiter of the triangle is equal the sum of the sides
x +x-1+x-2= 12 
3x = 12 +3 

x= 15/3 = 5 
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F(x)=−10x2−x and g(x)=−2x2−x, find (f−g)(x) and (f−g)(−2)
blondinia [14]

Answer:

(f - g)(x) = -8x²

(f - g)(2) = -32

General Formulas and Concepts:

<u>Algebra I</u>

  • Combining like terms

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -10x² - x

g(x0 = -2x² - x

(f - g)(x) is f(x) - g(x)

(f - g)(2) is f(2) - g(2)

<u>Step 2: Find (f - g)(x)</u>

  1. Substitute:                    (f - g)(x) = -10x² - x - (-2x² - x)
  2. Distribute -1:                 (f - g)(x) = -10x² - x + 2x² + x
  3. Combine like terms:    (f - g)(x) = -8x²

<u>Step 3: Evaluate</u>

  1. Substitute:                    (f - g)(2) = -8(-2)²
  2. Evaluate:                       (f - g)(2) = -8(4)
  3. Multiply:                        (f - g)(2) = -32

And we have our answers!

7 0
3 years ago
The tax on a $80 item is $3.20.<br> Find the tax on a $140 item.<br> What is the tax?
allsm [11]
Tax is 4%

Tax in the $140 item is $5.60
(0.04x140)
7 0
2 years ago
HELP ME WITH THIS MATH
tester [92]

Answer: Do you know what the total degree is but if not an algebraic equation us 148-x = 26

Step-by-step explanation:

7 0
3 years ago
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statuscvo [17]

Answer:

42 words

Step-by-step explanation:

To solve just solve 0.25x +1.50 = 12.00 for x

7 0
3 years ago
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Which of the following is the Pythagorean theorem
noname [10]

Answer:

a^2+b^2=c^2

Step-by-step explanation:

The Pythagorean Theorem is used to find a missing side length in a right triangle, and the formula a^2+b^2=c^2 is used to find the missing side, assuming a and b are legs, while c is the hypotenuse.

4 0
4 years ago
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