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andreyandreev [35.5K]
4 years ago
15

10 POINTS SO PLEASE HELP!!!!!!!!!

Mathematics
1 answer:
aalyn [17]4 years ago
8 0
1 ) substitute the r in the equation for 1.2. 6 (1.2)+7= ?...... multiply then add for. answer. 7.2+7= 14.2 2) since the miles Hanna runs is unknown it makes it n. Julie runs 3 miles less than twice hunny runs. Therefore it should be 2n-3. 3) you would subtract the regular number from both sides first so 55-40= 15.. the equation would then be 5s=15 then you would divide both sides by 5...making s=3. 4) you would add the sum of 8 to the product of 2 and y to get 24 so it should be 8+2y=24
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Let f(x)=3x2+2x−3. What is f(3)?
Annette [7]

Answer:

f(3) = 30

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x² + 2x - 3

f(3) is x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(3) = 3(3)² + 2(3) - 3
  2. Exponents:                          f(3) = 3(9) + 2(3) - 3
  3. Multiply:                               f(3) = 27 + 6 - 3
  4. Add:                                     f(3) = 33 - 3
  5. Subtract:                              f(3) = 30
4 0
3 years ago
PLEASE HELP? 10 POINTS
erik [133]
I would say I might be 46 but not quite sure
5 0
3 years ago
Read 2 more answers
Solve for x<br> 14x + 2 = 9x - 3
vovangra [49]
-9x from both sides
5x+2=-3
-2 from both sides
5x=-5
x= -1
7 0
3 years ago
Read 2 more answers
If I=square root-1 then i^2=
MrRissso [65]

Answer:

i^−3 = i

i^−2 = −1

i^−1 = −i

i^0 = 1

i^1 = i

i^2 = −1

i^3 = −i

i^4 = 1

i^5 = i

i^ 6 = −1

See the pattern

7 0
3 years ago
What does y+3&gt;5 equal
Dmitry [639]

Answer:

if you're solving for inequality its y>2

5 0
3 years ago
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