Answer:
B. 0.39 goldfish per cubic foot.
Step-by-step explanation:
You need to divied the number of goldfish in the tank by the volume of the tank.
Like this: 22/56= 0.39
Therefor the answer is B. 0.39 goldfish per cubic foot.
I hope this helps!!!
The dimensions are 10 x 10 x 10. I this is because when it was it can hold up to 1000 cubes, that says the volume is 1000. I know that V=lwh so 1000 = lwh. If you do 10 x 10 x 10 you get 100! Hope this helped :D
Please mark me the brainiest!
Answer:
x1, x2 = 4.74 , -2.74
Step-by-step explanation:
To find the roots of a quadratic function we have to use the bhaskara formula
ax^2 + bx + c
x^2 - 2x - 13
a = 1 b = -2 c = -13
x1 = (-b + √ b^2 - 4ac)/2a
x2 =(-b - √ b^2 - 4ac)/2a
x1 = (2 + √ (2^2 - 4 * 1 * (-13)))/2 * 1
x1 = (2 + √ (4 + 52)) / 2
x1 = (2 + √ 56 ) / 2
x1 = (2 + 7.48) / 2
x1 = 9.48 / 2
x1 = 4.74
x2 = (2 - √ (2^2 - 4 * 1 * (-13)))/2 * 1
x2 = (2 - √ (4 + 52)) / 2
x2 = (2 - √ 56 ) / 2
x2 = (2 - 7.48) / 2
x2 = -5.48 / 2
x2 = -2.74
A = 10
Step by step
3+7=10
10+(-7)=3
First set 2n-1=4n+5 and solve for n. once you have n plug it back into each equation and then multiply those two together. Do the same to n-3 and 2n+1. Once you get the answer to both subtract them
