Answer:
class width is 5
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
a is incorrect because
20/32=10/16=5/8
b is incorrect because
10/7=1.42 and 7/10=0.7 which don't equal each other
c is incorrect because
4/6 equals 2/3 not 3/5
d is correct because,
18/48=15/40
-8=-(x+4)
remember the invisible 1
-8=-1(x+4)
distribute using distributeiv porpety
a(b+c)=ab+ac
-1(x+4)=-x-4
-8=-x-4
add 4 to both sides
-4=-x
mutily both sides by -1
4=x
Answer:
first must times the number
9514 1404 393
Answer:
x = 78
Step-by-step explanation:
The base angles of an isosceles triangle are congruent, so the sum of angles is ...
x° +x° +24° = 180°
2x +24 = 180 . . . . . collect terms
x + 12 = 90 . . . . . . . divide by 2
x = 90 -12 . . . . . . . . subtract 12
x = 78
_____
<em>Additional comment</em>
The base angle of an isosceles triangle is always the complement of half the third angle. That angle's bisector is an altitude, so divides the isosceles triangle into two congruent right triangles.
