Answer:
7 is the value of x.
Step-by-step explanation:
Now we have to,
find the required value of x.
→ -18x - 19 = -145
→ -18x = -145 + 19
→ -18x = -126
→ x = -126/-18
→ [ x = 7 ]
Hence, the value of x is 7.
Answer:
3
Step-by-step explanation:
Subbing -3 for x in -x^2 - 4x, we get -(-3)^2 - 4(-3)
OR -9 +12
Final result: 3
4(25-1)
4(24)=96
Do parentheses first before other operations.
Answer:
Step-by-step explanation:
Given that when you add two numbers together the result is 3.
The greater of the number is given as a.
Let "x" represent that lesser number.
Thus:
To make x the subject of the formula. Subtract a from both x.
Therefore, the expression that represents the lesser number, x, is:
Answer:
Range=highest - lowest
80-20=60
Similarly
Q1=N/4=15
Q2=60/2=30
Q3=3*60/4=45
Interquartile range=Q3-Q1=45-15=30
