Is y=-4 and x=8 perpendicular, parallel, or neither

Answers

Related Questions

Which of the following is true? A Tangent is positive in Quadrant I. B Sine is negative in Quadrant II. C Cosine is positive in Quadrant III. D Sine is positive in Quadrant IV.
Which equation shows the substitution method being used to solve the system of linear equations? x – y = 7 x = y + 3A) x = (7 – x) + 3B) x – (y + 3) = 7C) (y + 3) – y = 7D) x – y = y + 3
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X/3 = 10 question 24 options: 10 3 30 7
Can anyone answer question 15 and 16

Plz help what is 2x4+3x5(5x6)+2x6

Answers

2x4+3x5(5x6)+2x6 =
2x4+3x5x30+2x6=
8+15x30+12=
8+450+12=
470

Order of operations:
P parentheses
E exponents
MD multiplication/division
AS addition/subtraction

Start with parentheses
2x4+3x5(5x6)+2x6
2x4+3x5(30)+2x6
The 5 next to the 30 in parentheses means the 5 and 30 have a multiplication sign between them
2x4+3x5x30+2x6

Now exponents - we don't have any, so no worries

Now multiplication and division, in order from left to right
2x4+3x5x30+2x6
8+3x5x30+2x6
8+450+2x6
8+450+12

Now addition and subtraction, in order from left to right
8+450+12
458+12
470

1 over 3 +2over 5) x 2 over 3

Answers

1/3 + 2/5 • 2/3

2 • 2 = 4
5 • 3 = 15

1/3 = 5/15

5/15 + 4/15 = 9/15 = 3/5

1/3 + 2/5 • 2/3 = 3/5

Sheila has 5 times as many markers as Dave. together they have 18. how many markers does Sheila have???