Answer:
4x2= 8+5= 13
Step-by-step explanation:
Answer:
x = 5
Step-by-step explanation:
These triangles are similar, so they are in proportion to each other. Because of this we can say 
(the lengths of the vertical sides) = 
(the lengths of the hypotenuses). If we solve by cross-multiplying the numbers and then dividing we get x = 5.
The 4th one it continues to go up at an exponential rate
Answer:
428
Step-by-step explanation:
439-15=422 then add 6
X=2.77 Explanation: log
(
3
x
)
=
log
(
21
)
(Take log of both sides)
x
*
(
log
(
3
)
)
=
log
(
21
)
x
=
log
(
21
)
log
(
3
)
x
=
2.77
