Answer:
the answer is 40:15
Step-by-step explanation:
The domain is actually the x value of the function, so we need to find the value of x
suppose the width is x, the length is then 3x+5
the area is 50^2 inches, so x(3x+5)=50 => 3x^2+5x-50=0
Factor this quadratic equation: (x-5)(3x+10)=0 =>x=5 or x=-10/3
width can not be negative, so the width is 5
the domain is x=5
Alright so 25% of the 32 students scored an A. 25% is equal to 1/4. So just take a fourth of 32 to get your answer, which is 8.
Answer:
2/3
Step-by-step explanation:
Since the length increases by 0.5 cm every second, after 8 seconds the length will increase by 4 cm. 12 + 8 + 12 + 8 = 40, and 40 - (16 + 16) = 8. 8/2 = 4, so the width is now 4. 16 * 4 = 64, and 12 * 8 = 96. 64/96 = 2/3.
A
4+8=12 wrong
4.5+8=12.5 wrong
5+8=13 wrong
5.5+8=13.5 right
the rest of the numbers are above 5.5 so they aren't wrong
<u>5.5, 6 and 6.5 makes the inequality true
</u>
B
x+8>13
x>13-8
<u>x>5
</u>
C
<u>x=5 is not a solution to the inequality because 5+8 is not more than 13.</u>
