Answer:
225 sq inches.
Step-by-step explanation:
If two more layers are added on it would be 225 because 5*7*7=225
Answer:
Q1. 15
Q2. You're correct
Q3. 3.60
Q4. 2 Correct
Step-by-step explanation:
You don't provide the instructions for this problem, leaving it up to me to guess what you might want.
Note that g(x) should be written as g(x) = (x-2)^2, whereas f(x) = g(x) + 3 (as presented).
If we let g(x) be the input to f(x), we get the "composition" of g and f:
f(x) = g(x) + 3 = (x-2)^2 + 3. You could leave the answer as is or you could expand (x-2)^2: f(x) = x^2 - 4x + 4 + 3 (and so on).
Answer:
6 elephants and 3 kangaroos in the zoo.
Step-by-step explanation:
Number of animals = 9
Number of legs seen = 30
But an elephant has 4 legs, while a kangaroo has 2 legs.
Let the number of elephant be represented by E, and the number of kangaroo by K.
So that,
E + K = 9 .................. 1
4E + 2K = 30 ............. 2
Multiply equation 1 by 2 to have
2E + 2K = 18 ............ 3
Subtract equation 3 from 1
2E = 12
E = 6
Substitute the value of E in equation 1
E + K = 9
6 + K = 9
k = 3
Thus, there were 6 elephants and 3 kangaroos in the zoo.
