Replace a and b with their number value:
2a^2 + 5b = 2(3)^2 +5(4)
do the 3^2 first: 3^2 = 9
so now you have 2(9) +5(4)
now multiply both sets of numbers: 2 x 9 = 18 and 5 x 4 = 20
now add them:
18 +20 = 38
122. Brainliest please???
Answer:
C
Step-by-step explanation:
The correlation is becoming stronger, with a negative direction.
The closer a number is to the zero in the number line when its negative the more value it has.
Now if the number is negative and its away from zero in the number line the less value it has.
The area is 120/(1/4) or 120 x 4 or 480 square inches
the width is 6/(1/2) or 6 x 2 or 12 inches
to find the length, divide the area by the width
480/12= 40
40 inches
Hope this helps :)
x greater than negative 2, because ln(x) is undefined for x <= 0 (-2+2=0, -1.999...+2>0)