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vladimir1956 [14]
3 years ago
14

Picture attached below

Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

secx = \frac{1}{cosx} and cos60° = \frac{1}{2}

Given

sec [ sin^{-1} \frac{\sqrt{3} }{2} ] ← evaluate bracket

= sec60°

= \frac{1}{cos60}

= \frac{1}{\frac{1}{2} }

= 2 → b

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Quadrilateral A^ prime B^ prime C^ prime D^ prime is the image of quadrilateral ABCD under a rotation about point Q
Yuliya22 [10]

Answer:

D: 90

Step-by-step explanation:

3 0
3 years ago
I need help on this question please
steposvetlana [31]
The answer to your question is A

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3 years ago
A train ticket to the city centre costs £2.85.
Ivanshal [37]

Answer:

£74.10 is the total cost for 26 tickets

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8 0
4 years ago
Read 2 more answers
Factor the expression using distributive property: 72b + 45
ANTONII [103]
The answer would be 9(8b+5)
this is how you do it...
1. find the GCF of both numbers in this one the GCF would be 9 
now, what do you multiply 9 by to get 72... 8, so 8 would go into the parenthesis and because there is a variable there which is 'b' the 8 would become '8b' now what do you multiply 9 with to get 45? '5' so you would add 5 into the parenthesis and that would be your answer!

Hope this helped! :D
8 0
3 years ago
Please help me with this ,
blagie [28]

Answer:

  (a) -2.3°/min

  (b) -2.9°/min

Step-by-step explanation:

The average rate of change is the ratio of the difference in R values to the difference in the corresponding t values.

(a) m = (157.6 -226.6)/(30 -0) = -69/30 = -2.3 . . . degrees per minute

__

(b) m = (61.6 -119.6)/(70 -50) = -58/20 = -2.9 . . . degrees per minute

3 0
3 years ago
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