Which steps would generate an expression equivalent to 17 (X +5)
2 answers:
Answer:
Apply the Distributive property.
The equivalent expressin is
Step-by-step explanation:
1. The expression given in the problem above is:
2. As you can see, the number 17 is multiplying (x+15), therefore, to obtain an equivalent expression you must apply the Distributive property.
3. Keeping the information above on mind, you have that the equivalent expression obtained is:
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Answer:
After 2 seconds
Step-by-step explanation:
First step is find an equation of velocity:
h(t)=-16t2+64t+112. The velocity function is derivated from position function, so we should do that.
v(t)= h´(t)= -16*2*t+64 ⇒ v(t)= -32t+64.
Now we know the arrow reach the maximun height when this velocity is equal to zero when t>0.
0=-32t+64 ⇒ 32t=64, split each member for 32 ⇒ =
t=2. That means after 2 sec. the arrow reach the maximum height
Answer:
The value is
Step-by-step explanation:
From the question we are told that
The sample size is n = 20
The sample mean is
The standard deviation is
Generally the standard error of the mean is mathematically represented as
=>
=>