Answer:
b = 230 degrees a= 25 degrees
Step-by-step explanation:
d and e are right angles (90 degrees) because when tangent meets radius at circumference a right angle is formed.
c= 180 - 65 - 90 = 25 degrees because angles in a triangle add up to 180
both triangles are congruent as they share the middle line, they have tangents that meet radi(which are equal), and both have right angles. this means that all angles are same in the triangles so a =c =25 and f=65.
65+65=130
360-130 = 230
because angles around a point add up to 360.
b=230
Answer:
466
Step-by-step explanation:
nnnnnnnn
Answer:
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Write out equation
Step 2: KCF (Keep Change Flip)
Step 3: Multiply
Step 4: Simplify
Answer:
Step-by-step explanation:
Assuming the order in which he answers the questions matter the answer is the number of permutations of 8 in 10.
This is 10! / (10-8)!
= 1,814.400.
If the order does not matter then the answer is the number of combinations of 8 from 10:
This is 10!/8!*2!
= 45.
Answer:
4 7/8
Step-by-step explanation:
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
39/8 ÷ 1/1
Applying the fractions formula for division,
39×1/8×1=
39/8
Simplifying 39/8, the answer is:
= 4 7/8
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