Answer:
C. KN
Step-by-step explanation:
In the line you can see GJ is 3 units and KN is the only answer to be 3 units apart as well. So your answer is C!
All I can say is 1 and 2 are correct.
Answer:
C. She left out a zero between the two and the five
Step-by-step explanation:
Given that Susan is expected to convert 12,050,000 to scientific notation, what Susan should have done is shown below:
Count the number of decimal places from your right up to before the first digit, and place the decimal point after the first digit. The number of decimal places counted would determine the exponent we are to use.
Here, we have 7 decimal places, counting from the right to the left, therefore, the exponent would be a positive 7.
What Susan should have is:
1.205 × 10⁷ NOT 1.25 × 10⁷.
1.25 × 10⁷ = 12,500,000, which is different from 12,050,000.
Her paper was marked wrong because: "she left out a zero between the two and the five"
Answer:
The answers to the first question are A,C,D
The answer to the second question is YZ=16
Step-by-step explanation:
(1st Question)
Since <K and <M Are equal, and both <L's are equal, KL and ML are congruent (Answer choice) because of the ASA postulate.
You need to create the following equation to find the length of KN and MN 7x-4=5x+12
(Get the "x" variable to one side)
2x-4=12
(Isolate the variable)(Remove the 4)
2x=16
(Divide the 2 by itself to remove it from the x, remember to divide both sides by 2)
x=8 (Answer Choice)
Plug in the x value into each equation
KN= 7(8)-4
KN= 56-4
KN= 52
MN= 5(8)+12
MN= 40+12
MN= 52 (Answer Choice)
MN=KN
(Second Question)
Since XWY(20) is half of XWZ(40), ZWY also equals 20.
This now proves the triangle is congruent by the AAS postulate.
Since the triangles are congruent, if XY = 16, YZ also equals 16.
