Answer:
x = 6 and DF = 3*6-3 = 15
Step-by-step explanation:
Given triangles are similar and their side lengths are proportional
the similarity ratio for this pair is 4/8 = 1/2
the length of DF:
(7.5)/(3x - 3) = 1/2 cross multiply expressions
3x - 3 = 15 add 3 to both sides
3x = 18 divide both sides by 2
x = 6 and DF = 3*6-3 = 15
Answer:
0.4r
Step-by-step explanation:
40% of the price of r dollars
To translate into an expression, we outline te keywords
Percentage of price = 40%
The price in question = $r
Hence, the expression will calculate, 40% of the price
Hence, we'll have :
40% of price
(40 / 100) * r
0.4 * r
= 0.4r
If the value of x be 0.2 the inequality be true
Answer:
90°
Step-by-step explanation:
Actually the question should be AC is tangent to circle B at point C. What is the measure of angle BCA.
AC is tangent and BC is radius.
Radius is perpendicular to the tangent.
Therefore,
measure of angle BCA = 90°
Hi lovely,
The answer you're looking for is 21.
