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marshall27 [118]
3 years ago
12

Could two lines with negative slope be perpendicular? Explain.

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0
No.  For two lines to be perpendicular their slope must be the negative reciprocals of one another, mathematically:

m1*m2=-1

So if the slope of one line is negative, the line perpendicular to this must be positive by definition.
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Whats 1/5 - 1/7 please can you tell me how to work it out<br> thanks
Andrej [43]
Convert the fractions so they both have the same denominator (bottom part of the fraction)

1/5 = 7/35

This is because 5*7=35, so 1*7=7

1/7 = 5/35

This is because 7*5=35, so 1*5 =5

Then subtract the top numbers to get the answer:

\frac{7}{35}-\frac{5}{35} = \frac{2}{35}
3 0
3 years ago
Read 2 more answers
Find x [Angles and Segment]
Alex_Xolod [135]

Answer:

  8.3 cm

Step-by-step explanation:

The product of lengths to the near and far point of intersection with the circle is the same in all cases:

  (7 cm)(7 cm) = (y)(11 cm +y) = (4 cm)(4 cm +x)

Since we're only interested in x, we can divide by 4 and subtract 4:

  49 cm² = (4 cm)(4 cm +x)

  (49/4) cm = 4 cm +x . . . . . . divide by 4 cm

  8.25 cm = x . . . . . . . . . . . . . subtract 4 cm

To the nearest tenth, x = 8.3 cm.

_____

For a tangent segment, the two points of intersection with the circle are the same point, so the product of lengths is the square of the length.

___

The angles depend on the size of the circle, which is not given.

6 0
3 years ago
Does anyone know the answer to this question?
miv72 [106K]

a) means what is the probability of P occurring once Q has occurred. That is 9/24 which is 3/8.

b) is 14/24 which is 7/12.

Please inform me if I gave you the correct answers :)

3 0
2 years ago
L has $200. Ty has 30% more than Lu and twice as much as Ali. How much money do they have altogether? (PLEASE SHOW STEPS!)
saul85 [17]
30% of 200=60 200+60= 260 
Ty has £260
£260 x 2= £520

200+260+520= £980

Answer £980

I hope this is right :D
5 0
3 years ago
a hot air ballon cruising at 1000 feet begins to ascend. it ascends at a rate of 200 feet per minute Writing problems into slope
Gnesinka [82]

Answer:

y=200x+1000

Step-by-step explanation:

5 0
3 years ago
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