Answer:
x < -15
Step-by-step explanation:
Here is the solution:
-3x-42 > 3
Add the numbers
-3x > 45
Divide both sides of the inequation by -3 and flip the inequality sign.
x < -15
This is a notable trinomial.
You have to find two numbers which summed give 1 and multiplied give 20.
In this case +4 and -5
-5+4 = -1(a)
-5*4 = -20
So (a+4)(a-5)
one tip:
Example: 4 - (-3)
it instantly becomes positive because the negatives are close to each other as shown.
hope that helps :)
Answer:
Therefore,
Step-by-step explanation:
Let the Width of rectangle be 'x' cm.
Then the length of a rectangle will be (x + 5) cm.
Area of rectangle given is 84 cm squared.
To Find:
Length = (x+5) = ?
Width = x = ?
Solution:
We have area of rectangle given as
Substituting the given values we get
On factorizing we get
Therefore,
Therefore,
Answer:
x=7.5
Step-by-step explanation:
35x-25=237 1/2
+25 +25
35x=262 1/2
x=7.5