Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
Angle a and angle b are vertical angles
Angle a =8x+6
Angle b= 4x+38
Solve for x and find the measure of angle b
we know that
<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always congruent.
m∠a=m∠b -----> by vertical angles
substitute the given values
solve for x
<em>Find the measure of angle b</em>
substitute the value of x
Answer:
20
Step-by-step explanation:
When you add them all up and divide by seven, you get 20
Answer:
1 + 3sinA + 3sin²A + sin³A
Step-by-step explanation:
Given
(1 + sinA)(1 + sinA)(1 + sinA) ← expand the last pair using FOIL
= (1 + sinA)(1 + 2sinA + sin²A) ← distribute
= 1 + 2sinA + sin²A + sinA + 2sin²A + sin³A ← collect like terms
= 1 + 3sinA + 3sin²A + sin³A
Percent means parts out of 100
15%=15/100=0.15
'of' means multiply
therefor
15% of x equals 12 means
0.15 times x=12
divide both sides by 0.15
x=80
the number is 80
