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laiz [17]
3 years ago
12

please help! I missed one day of class in algebra and missed learning this so I'm really confused! if someone could help me that

be great! thanks!​

Mathematics
1 answer:
Kipish [7]3 years ago
7 0
Perpendicular means it’s opposite reciprocals for example : the slope is 2 then the perpendicular line’s slope would be -1/2 because it flips the number also makes it the opposite sign.

If it’s parallel then the slope would be the same

I hope that helps
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What is the image of 4,3 reflected across the Y axis
puteri [66]

Answer:

(-4 , 3)

Step-by-step explanation:

(x,y) reflected over y axis  ---> (-x,y)

6 0
2 years ago
Solve the system:<br> -5x+6y=55<br> 4x+3y=34<br><br> Write down your solution.
svetlana [45]

Answer:

(1, 10)

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

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

-5x + 6y = 55

4x + 3y = 34

<u>Step 2: Rewrite Systems</u>

4x + 3y = 34

  1. Multiply everything by -2:                    -8x - 6y = -68

<u>Step 3: Redefine Systems</u>

-5x + 6y = 55

-8x - 6y = -68

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Elimination</em>

  1. Combine equations:                    -13x = -13
  2. Divide -13 on both sides:             x = 1

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    4x + 3y = 34
  2. Substitute in <em>x</em>:                       4(1) + 3y = 34
  3. Multiply:                                  4 + 3y = 34
  4. Isolate <em>y</em> term:                        3y = 30
  5. Isolate <em>y</em>:                                 y = 10
4 0
2 years ago
If 2x^3=y, then log y equals
Svetllana [295]

Answer:

log 2 + 3 logx

Step-by-step explanation:

log 2x^3

log2+logx^3

log^2+3logx

4 0
2 years ago
PLEASE HELP ME!!!!!!! THIS IS TIMED SO PLEASE HELP!!!!! PLEASE, PLEASE, PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sidana [21]

Answer:

2/29 i think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the quotient? StartFraction a minus 3 Over 7 EndFraction divided by StartFraction 3 minus a Over 21 EndFraction
Licemer1 [7]

Answer:

The quotient is -3

Step-by-step explanation:

we have

\frac{a-3}{7}:\frac{3-a}{21}

Multiply in cross

\frac{(a-3)21}{(3-a)7}

Simplify

Remember that

\frac{21}{7}=3

substitute

\frac{(a-3)3}{(3-a)}

we know that

(3-a)=-(a-3)

substitute

\frac{(a-3)3}{-(a-3)}=-3

5 0
3 years ago
Read 2 more answers
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