Answer:
8 seconds
Step-by-step explanation:
Given
h = - 5t² + 40t
When the object hits the ground then h = 0
Substitute h = 0 into the function and solve for t
- 5t² + 40t = 0 ← factor out - 5t from each term
- 5t(t - 8) = 0
Equate each factor to zero and solve for t
- 5t = 0 ⇒ t = 0
t - 8 = 0 ⇒ t = 8
t= 0 denotes the time of launch
t = 8 denotes the time it hits the ground
Answer:
72 degrees
Step-by-step explanation:
2x+3x=180
5x=180
x=36
36*2=72
Hello :
4(3x² +2)-9=8x²+7 = <span>4(3x^2 +2)-9 +9 =8x²+7 +9
= </span><span> 4(3x² + 2)=8x² + 16
</span><span>(State a reason why1) Addition Property of Equality)</span>
The numbers in the chart are -7.1, -3.4, -1.2, 2.1, and 3.4. So, from greatest to least the numbers will be:
3.4, 2.1, -1.2, -3.4, and then -7.1.
With absolute value, the numbers from greatest to least are:
|7.1|, |3.4|, 3.4, 2.1, |1.2|.
However, this is assuming that Friday is 3.4, which was given information on the last question. Hope this helps!
Answer:
C 10⁴
Step-by-step explanation:
The given equation is
Javier has to solve for n
He can multiply through by 100 to get;
He can now divide through by 775 to obtain:
He can now easily simplify to get:
We rewrite as a power to get:
