Replace x with -4 so it would be:
f(-4)= 2(-4)=-8
-8 is your answer
Answer:
The length of the missing leg is 12 cm.
Explanation:
a² + b² = c² (Pythagoras theorem)
c is the hypotenuse (longest length) of a triangle.
a and b are the two other side of the triangle excluding the longest one.
Let x cm be the length of the missing leg of the right triangle.
x² + 5² = 13² (Pyth. Thm.)
x² = 13² - 5²
x² = 169 - 25
x² = 144
x = √144
x = 12
Hope it helps! Mark me brainliest if it’s correct.
Answer:
y=(-1/2)x+7
Step-by-step explanation:
y=mx+b
find slope (m)-> (4-5)/(6-4)
find y-intercept (b)-> 4=(-1/2)6+b
m= -1/2
b= 7
Answer:
The value of each expression when x=3 will be -20 and -20.
Step-by-step explanation:
Given the expression
-4x-8
setting x=3
= -4(3)-8
=-12-8
=-20
Given the expression
-2(x+1)-2(x+3)
setting x=3
=-2(3+1)-2(3+3)
=-2(4)-2(6)
=-8-12
=-20
so we conclude that the value of both the expressions was -20 when we substituted the value x=3.
Therefore, the value of each expression when x=3 will be -20 and -20.
Answer:
Step-by-step explanation:
To solve for :
(given)
(times on both sides)
I hope this helps :)