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4 years ago

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

1 answer:

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:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x² + 2x - 3

f(3) is x = 3

Step 2: Evaluate

Substitute in x: f(3) = 3(3)² + 2(3) - 3
Exponents: f(3) = 3(9) + 2(3) - 3
Multiply: f(3) = 27 + 6 - 3
Add: f(3) = 33 - 3
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 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

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i^3 = −i

i^4 = 1

i^5 = i

i^ 6 = −1

See the pattern

7 0

3 years ago

What does y+3>5 equal

Dmitry [639]

Answer:

if you're solving for inequality its y>2

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3 years ago