4(3x+12)=18+1/2(24x+15)
12x+48=18+12x+7.5
0x=-22.5
x=undefined. Hope it help!
7:C. 8:A. 9: Polygon And the last one is D
Answer:
x > -1
Step-by-step explanation:
To solve the inequality, use the same rules as solving equations.
2 - 2x < 4
-2x < 2
x > -1
Since you divide by a negative, you must switch the sign < to >.
Answer:
Multiplication rule of exponents says 
hence, 2^4 • 3^4 =6^4
Step-by-step explanation:
As per the rule of exponents,
If we go by the above equation, we can deduce that x is 2 and y is 3
Thus, 2^4 *3^4 can be written as 
Hence, 2^4 • 3^4 =6^4
Answer:
1)B:63°
2)A:59°
Step-by-step explanation:
1.ABC is a right triangle at C then angle ACB=90°(right angle)
Angle CAB=27°(see the given)
measure of the angles in any triangle is 180°
then angle CBA=
measure of all the angles - (measure ACB+measure CAB)
=180°-(90°+27°)
=63°
2. Same explanation of angle B:
in the right triangle DEF: angle DEF=90°
angle D=31°(given)
Then measure of angle A=180°-(angle E + angle D)
=180-(90+31)=59°
