Answer:
7 in, 7 in, 7 in
12 in, 15 in, 25 in
2 in, 3 in, 4in
Step-by-step explanation:
<h3>
Answer: Choice D</h3>
=============================
Explanation:
The first figure has 4 sides (quadrilateral)
The second figure has 5 sides (pentagon)
The third figure has 6 sides (hexagon)
Each time we increase the number of sides by 1.
The fourth figure must have 7 sides (heptagon). The only thing that has 7 sides is the figure listed in choice D.
Answer:
3 
Step-by-step explanation:
change 1
to an improper fraction
1
=
, thus
×
=
= 3
or 3.57 ( to 2 dec. places )
Answer:
x = 4
Step-by-step explanation:
110ₓ = 40₅ --------- change all to base ten.
<u>the system called binary</u>
1x²+1x ¹+0x⁰ = 45¹+0*5⁰
x² + x + 0 = 20
x² + x – 20 = 0
solve x using Quadratic equation
-1 ± 
x = ------------------------------------
2 * 1
x = -5; x = 4
therefore, x = 4