Perpendicular lines have opposite reciprocal slopes, so to find the slope of the line perpendicular to y = 2x -1,
first find the slope of y = 2x - 1, which is 2 (slope is the coefficient of the variable x).
Now we must find the opposite reciprocal of 2, so flip 2 (2/1) over and add a negative sign.
2 becomes -1/2, so your answer is:
A) -1/2
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Answer:
a) 24×10^-7
Step-by-step explanation:
The number is ...
0.0000024 = 2.4×0.000001 = 24×0.0000001
The first of these equivalents can be written as ...
2.4×10^-6 . . . . matches no answer choice (correct answer)
The second of these can be written as ...
24×10^-7 . . . . matches choice (a)
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Usually "scientific notation" requires there be one digit left of the decimal point in the mantissa. As we have noted above, no offered answer choice matches this form. The only choice that is equivalent to the given number is the one shown above.
Answer: 19 ft
Step-by-step explanation: To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width. Hope this helps :)
Answer: 18 sides
Solution:
Formula for calculating no. of sides of regular polygon:-
180 x n-2/n = interior angle
180 x n-2/n = 160
18 x n-2/n = 16
9 x n-2/n = 8
9n - 18 = 8n
n = 18
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I hope this helps! :D
Answer:
f
−
1
(
x
)
=
√
2
(
x
+
8
)
/2
,
−
√
2
(
x
+
8
)
/2
keep it under whole root
Step-by-step explanation: