Answer:
<h2>BF ≈ 7.07 cm</h2>
Step-by-step explanation:
ΔBCE:
Use the Pythagorean theorem:
We have EC = 4cm and BC = 3cm. Substitute:
BF is the diagonal of the square FEBA. The formula of a diagonal of a square with side <em>a</em> is:
Therefore
Approximation:
The answer is going to be 2
The cost of an adult ticket is $15.50 and the cost of a child ticket is $8.50
Proof:
Set up a system of equations calling Adults a and Children c
2a+3c= $56.50 (equation 1)
4c+a= $49.50 (equation 2)
a= -4c+49.50 (i subtracted 4c to both sides) (label equation 3)
sub equation 3 into equation 1
2(-4c+49.50)+3c= 56.50
-8c+99+3c=56.50
-5c+99=56.50
-99 -99
-5c = -42.50
c= -42.50/ -5
c= 8.50
sub c=8.50 into equation 3 to find adult price
a= -4(8.5)+49.50
a= 15.50
Therefore Child Cost = $8.50 and Adult Cost= $15.50
Answer:
<u><em>x-3</em></u>
Step-by-step explanation:
first off, you've got to factor this expression
x^2-x-6= (x+2)(x-3)
so that is your expression.
then, you can take a look at the options.
x+2 is a binomial, and x-3 is a binomial
the only option out of those two that is on the screen is x-3.
the answer is x-3
hope this helped!!!
If P = b + a + c, and we are to solve for b, subtract a and subtract c from both sides:
P - a - c = b (answer)