Answer:
A
Step-by-step explanation:
A is the correct answer because the equation matches option A.
(-2 1/2) + (-3 1/4)
The minus sign in -2 1/2 shows that the submarine descended and then descended again with the addition sign. Though the addition sign can mean that it ascended its incorrect.
With the equation in hand, we can prove that option A is correct.
If the submarine descended 2 1/2 miles then here must be a minus sign next to the 2 1/2. But if it ascended then there would've been an addition sign to show that it ascended. The other value - 3 1/4 also shows that it ascended with the help of the addition sign.
Ascends - values increase from smallest to highest.
Descends - values decrease from highest to smallest.
<u>Answer:</u>
g (h (x) ) = 5/8
<u>Step-by-step explanation:</u>
We are given the following two functions and we are to find the value of 
:
Firstly, we need to find the function :
Now substituting the value 
in it:
g (h (x) ) = 5/8
Answer:
11.33 * 16.33 meters to the nearest hundredth.
Step-by-step explanation:
Let the width of the pool be x meters, then the length is x+5 meters.
The length of whole area = x + 5 + 2(3) = x + 11 meters and the width is
x + 2(3) = x + 6 meters.
So we have the equation (x + 6)(x + 11) = 387.
x^2 + 17x + 66 = 387
x^2 + 17x - 321 = 0
x = [-17 +/- sqrt (17^2 - 4*1*-321)] / 2
x = 11.33 meters
So the width is 11.3 m and the length is 16.33 meters.
Answer:
x=-1 and x=5
Step-by-step explanation:
we have
Solve it by completing the square method
We take the coefficient of x that is -4, divide it by 2 and then square it
so
square it
Adds 4 both sides
Combine like terms right side
Rewrite as perfect squares
take square root both sides
therefore
