Answer:
300
Step-by-step explanation:
A significant figure is the most important (largest) number you can round it to.
As it wants 1 significant figure, you count 1 to the left and round the 4 down.
Hope this helps :)
Answer:
cost = 56 + 8t, where t is the number of hours worked for.
for 4 hours of work, cost = 56 + 8 x 4 = $88
Step-by-step explanation:
Answer:
39/4
Step-by-step explanation:
Step 1 - Setup
First, we set up the mixed number 9 3/4 with different colors, so it is easy to follow along:
9
3
4
Step 2 - Multiply
Next, we multiply the whole number by the denominator.
9 x 4 = 36
Step 3 - Add Numerator
Then, we add the numerator to the answer we got in Step 2.
36 + 3 = 39
Step 4 - Solution
Finally, to get the solution, we keep the original denominator and make the numerator the answer from Step 3. Thus, 9 3/4 as an improper fraction is:
39
4
Answer: 110 -10x
Step-by-step explanation:
You do pemdas
So 11•10 = 110
Then -10•x = -10x
And then you get
110-10x
Answer:
t = 9 s
Step-by-step explanation:
A stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where
![s(t) = -4.9t^2 + 29.4+132.3](https://tex.z-dn.net/?f=s%28t%29%20%3D%20-4.9t%5E2%20%2B%2029.4%2B132.3)
We need to find when the stone will hit the ground. It means when s(t) = 0. So,
![-4.9t^2 + 29.4t+132.3=0\\\\t=-3\ and\ t=9](https://tex.z-dn.net/?f=-4.9t%5E2%20%2B%2029.4t%2B132.3%3D0%5C%5C%5C%5Ct%3D-3%5C%20and%5C%20t%3D9)
So, the stone will take 9 seconds to hit the ground. Hence, this is the required solution.