Answer:
x=-5 x=-4
Step-by-step explanation:
y=x^2 + 9x + 20
We need to factor the equation
What 2 numbers multiply to 20 and add to 9
4*5 = 20
4+5 =9
y=(x+5) (x+4)
To find the zero's we set the equation equal to zero
0= (x+5) (x+4)
Using the zero product property
x+5 = 0 x+4=0
x=-5 x=-4
Answer:
(1, 4)
Step-by-step explanation:
(x + 1 < 5) is solved by subtracting 1 from both sides of this inequality:
x < 4.
(x - 4 > -3) is solved by adding 4 to both sides: x > 1.
The solution of (x + 1 < 5) ∩ (x - 4 > -3) is thus (1, 4).
Both taxis will leave together at 04:18 PM after 04:00 PM
Step-by-step explanation:
We have to use the LCM to find the time on which both will leave at the same time,
Given
Departure interval for first taxi = 6 minutes
Departure interval for second taxi = 9 minutes
We have to find the LCM of 9 and 6
So,
Factors of 6: 6,12,18,24,30,36,42,48,54,60
Factors of 9: 9,18,27,36,45,54,63,72
The LCM is 18.
So,
Both taxis will leave together at 04:18 PM after 04:00 PM
Keywords: LCM, time
Learn more about LCM at:
#LearnwithBrainly
Answer:
|x +17| = 15
Step-by-step explanation:
The absolute value equation ...
|x -b| = c
can be rewritten as two equations:
x -b = -c
x -b = c
The solution to the first is x = b -c.
The solution to the second is x = b +c.
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The first solution is the smaller of the two, so we have ...
b -c = -32
b +c = -2
Adding these two equations gives ...
2b = -34 ⇒ b = -17
Subtracting the first equation from the second gives ...
2c = 30 ⇒ c = 15
The the equation you seek is ...
|x +17| = 15
Answer:
1+1-96
2+(-96)
-94
Step-by-step explanation: