Answer:
4x
Step-by-step explanation:
Given the expression
4x² - 36x
Get the individual factor of each terms
4x² = 4 * x * x
36x = 4 * 9 * x
4x² - 36x = 4x(x-9)
From both factors we can see that 4*x is common to them, hence the greatest common factor is 4x
Answer:
The speed of marathon is 20.038 mile per hours
Step-by-step explanation:
Given as :
The distance of marathon = 26.2 miles
The time recorded for marathon = 1 hour 18 minutes and 27 seconds
So, The total time =
Or , Total time = 1.3075 hours
Let The speed in marathon = x mph
So, Distance = Speed × Time
Or, 26.2 miles = x × 1.3075
Or, x =
mile per hour
Or , x = 20.038 mph
Hence The speed of marathon is 20.038 mile per hours Answer
Answer:
4.2×10to the 6th or 4,200,000
Step-by-step explanation:
First you have to know that you are multiplying these two numbers. When you multiply exponents like there you add the matissa's (6&7) and add the exponents.
6×10to the 2 * 7×10to the 3rd
42 × 10to the 2+3
42×10to the 5th
Something else you need to know is your matissa cant be higher than 10
So:
4.2 × 10to the 6th is your answer
this means
from x<-2 only graph y=3 but not -2
from -2<=x<2 only graph -x/2+2 but not 2
from x>=2 only graph 2x-3 including 2
the closest graph is the first but its has a mistake, on the middle graph the circle should not be shaded in
10% = 10g/100ml. Ergo, 15ml/100ml (10g) = 1500mg of KCL
.9% NACL = 9g/1000mL, Ergo = 9000mg NaCl
Now we have to figure out how many mEqs of each salt we have.
MW of NaCl = 58.5
MW of KCl = 74.5
So, in moles, we have:
1500 KCl / 74.5 = 20.13 mmol KCl
9000 NaCl / 58.5 = 153.85mmol NaCl
Because the valence of both ions is one, as an example, it would be both 20.13 mEq of Cl- and K+ from 20.13 mmoles of KCL.
So, just add the two together, 20.13 + 153.85 = 174-ish.