Answer:
The answer is x≥9.
Step-by-step explanation:
Answer: (0,0)
Step-by-step explanation:
Answer:
There isnt any solution.
Step-by-step explanation:
but these are the steps:
Step 1: Simplify both sides of the equation.
5x−3+2x=x+7+6x
5x+−3+2x=x+7+6x
(5x+2x)+(−3)=(x+6x)+(7)
7x+−3=7x+7
7x−3=7x+7
Step 2: Subtract 7x from both sides.
7x−3−7x=7x+7−7x
−3=7
Step 3: Add 3 to both sides.
−3+3=7+3
0=10
<h3>hope this helps</h3>
1. sqrt 52 = 7.211 rounds to 7
2. irrational number
3. sqrt 441 = 21....rational
4. 12^2 + 3^2 = h^2
144 + 9 = h^2
153 = h^2
sqrt 153 = h
12.4 = h <===
5. 6^2 + b^2 = 18^2
36 + b^2 = 324
b^2 = 324 - 36
b^2 = 288
b = sqrt 288
b = 16.97 rounds to 17 <==
6. 39^2 + 52^2 = c^2
1521 + 2704 = c^2
4225 = c^2
sqrt 4225 = c
65 = c
(39 + 52) - 65 = 91 - 65 = 26 miles shorter <==
7. 4^2 + b^2 = 16^2
16 + b^2 = 256
b^2 = 256 - 16
b^2 = 240
b = sqrt 240
b = 15.49 rounds to 15.5 <==
8. ?
Answer: Ana will hit the water after 3 seconds.
Step-by-step explanation:
The exercise gives you the following function which models Anna's height above the water (in meters) after diving "x" seconds:
You can rewrite the function with 
:
In order to calculate the number of seconds Ana will hit the water after diving, the procedure is:
- Substitute 
into the function:
- Solve for "x".
By the Zero Product Property, you know that if 
, then 
or 
.
Then you get:
- Choose the positive value (
)
Then, Ana will hit the water after 3 seconds.
