Answer:
Step-by-step explanation:
We can simplify this expression by combining like terms.
To combine like terms, we are looking for terms that share the same variable and exponent.
First, we can see that the terms 
and 
share the same variable (h) and the same exponent (2).
This simplifies to 
.
Next, we can see that 
and 
share the same variable (h) and the same exponent (1) so we can add these.
This simplifies to 
.
Lastly, we can see that we just have 7, no more terms with the same variable (none). So this is 7.
Adding up all the terms in standard form (
), we get .
Hope this helped!
Given the equation representing the pathway of sam's dive into the swimming pool, his height after two seconds is -22ft.
<h3>What is a Quadratic Equation?</h3>
Quadratic equation is simply an algebraic expression of the second degree in x. Quadratic equation in its standard form is;
ax² + bx + c = 0
Where x is the unknown
Given the data in the question
- Equation of the pathway of sams dive into the swimming pool is h = -16t² + 15t + 12.
- Time t = 2.0 seconds
- Height h = ?
Now, to get the height after 2 seconds, we substitute 2 for t in the equation.
h = -16t² + 15t + 12.
If t = 2
h = -16(2)² + 15(2) + 12
h = -16(4) + 30 + 12
h = -64 + 30 + 12
h = -64 + 42
h = -22ft
Therefore, given the equation representing the pathway of sam's dive into the swimming pool, his height after two seconds is -22ft.
Learn more about quadratic equations here: brainly.com/question/1863222
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Answer:
I need to know the cost of one visit
Answer: I am the saving grace
Step-by-step explanation:
In the attachments :)
Answer:
10x - 3
Step-by-step explanation:
First, distribute 2 to all terms within the second parenthesis:
2(3x + 1) = (2 * 3x) + (2 * 1) = 6x + 2
4x - 5 + 6x + 2
Combine like terms (terms with the same amount of variables).
4x + 6x + 2 - 5
(4x + 6x) + (2 - 5)
10x + (-3)
10x - 3
10x - 3 is your answer.
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