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yaroslaw [1]
3 years ago
9

Please help me i need help :/

Mathematics
1 answer:
posledela3 years ago
3 0

Answer:

A is perpendicular with C, but NOT B. B is also perpendicular but not with A.

Step-by-step explanation:

Lines have to form a 90 degree angle with another line to be perpendicular, and you can use that judgement to figure out which one is perpendicular.

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Y=5x+5 is the equation of a straight line graph. What is its gradient?
Nikolay [14]

Answer:

5

Step-by-step explanation:

The equation of a straight line is :

y=mx+c

where m is the gradient and c is the y-intercept

so if m equals 5 then the gradient is 5

6 0
2 years ago
Read 2 more answers
Help me asap!!! :) please<br><br><br> Mark you a brainly!
Margaret [11]

30 /10 = 3

 so multiply 9 by 3

9*3 = 27

9/10 = 27/30

a = 27

5 0
3 years ago
Solve for d.<br> 19d -16d-d-d-1 = 12
Reika [66]

Answer:

d = 13

Step-by-step explanation:

19d - 16d - d - d - 1 = 12

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19d + (--18d) - 1 = 12

19d - 18d - 1 = 12

1d = 12 + 1

d = 13

Check:

19*13 - 16*13 - 13 - 13 - 1 = 12

247 - 208 - 26 - 1 = 12

39 - 27 = 12

7 0
1 year ago
The price of a book rises from £16 to £20 work out the percentage increase​
Vladimir79 [104]

Answer:

25%

Step-by-step explanation:

20-16=4

So

16…4

1 … 4/16

100…4/16×100

1/4×100

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5 0
3 years ago
What is the quotient? <br> X+5/3x^2 + 4x+5
nasty-shy [4]

Answer:

3x - 11

Step-by-step explanation:

x + 5/ 3x-11

3x - 11 is the quotient

5 0
2 years ago
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