They added it wrong. They added it like this:
![100 + 700 + 800 + 560](https://tex.z-dn.net/?f=100%20%2B%20700%20%2B%20800%20%2B%20560)
When it shouldve been this:
![100 + 70 + 80 + 56](https://tex.z-dn.net/?f=100%20%2B%2070%20%2B%2080%20%2B%2056)
They just added a place marker in all numbers below 100.
1.
A graph is formed by plotting all pairs (x,y), such that y is f(x), for a certain function f.
for example:
Take a look at the graph. (x, y)=(3, 5) is on the graph. This means that f(3)=5 (because f(x)=y)
2.
The real solutions of a function f, are those points x, such that f(x)=0.
in the graph we see no point (x, 0), so there are no real solutions.
Answer: <span>No Real Solution</span>
Full question:
Eighteen of 50 digital video recorders (DVRs) in an inventory are known to be defective. What is the probability you randomly select an item that is not defective?
Answer:
16/25
Step-by-step explanation:
Probability is the likelihood of an event happening and it is calculated as the number of favourable outcomes divided by the total number of possible outcomes. From the above we can calculate probability of finding a DVR that is not defective by adding up number of DVRS that are not defective in the DVRS(favourable outcomes) and dividing it by the total number of DVRS(total number of possible outcomes).
Non defective dvrs=total number of dvrs-defective dvrs=50-18=32
So probability here=non defective dvrs/total number of dvrs
=32/50=16/25
Answer:
1/2
Step-by-step explanation:
27 = 3 ^(4x+1)
Rewriting 27 as 3^3
3^3 = 3 ^(4x+1)
Since the bases are the same, the exponents are the same
3 = 4x+1
Subtract 1
3-1 = 4x+1-1
2 =4x
Divided by 4
2/4 = 4x/4
1/2 =x
Answer:
a equals and b equals 7
Step-by-step explanation
divide both side by 3 getting a+b=(28/3)
subtract b from both sides getting a=(28/3)-b
to solve for b its the same way so b=(28/3)-a
you can then substitute