Answer:
-21
Step-by-step explanation:
-3 * 7
Answer: The answer is (2, 2).
Step-by-step explanation: The given system of equations is

We are to find the co-ordinate pair that is the solution for the above system of equation.
Multiplying the second equation by 2 and adding to the first equation, we have

and

Thus, the co-ordinate pair is (2, 2).
Answer:C
Step-by-step explanation:
Answer:
Step-by-step explanation:
First, we need to know the formula for the slope of the roof. The formula is the following
Pitch= Rise / Run
Slope of the roof is referred to the ratio of the vertical measurement which is the rise to horizontal measurement which is the run. Using the given above let's find the pitch of the roof.
Given: Rise= 7 ft Run= 15 ft
Slope = Rise/Run
= 7 ft / 15 ft
= 0.47
The slope is 0.47ft
hope this helped!
Answer:

Step-by-step explanation:

( Sum of angle in straight line )
Collect like terms
⇒
Calculate the sum or difference
⇒
Move 120 to right hand side hand change it's sign
⇒
Subtract 120 from 180
⇒
Divide both sides of the equation by 4
⇒
Calculate
⇒
Hope I helped!
Best regards!!