9. The table below shows the number of barrels of oil produced per day by some countries.
Country
Barrels of oil produced
per day
1.17 x 10?
USA
China
UK
3.98 x 106
9.39 x 105
9.32 x 104
Cameroon
Japan
3.92 x 10
(a) Write the number of barrels of oil produced per day by Cameroon as an ordinary number.

How many more barrels of oil per day did china produce than the uk?
Give your answer in standard form.

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63