157 angle on a straight line
Answer:
j : k : m = 4 : 12 : 15
Step-by-step explanation:
Given
j : k = 1 : 3 , then k = 3j
Given
k : m = 4 : 5
then expressing in fractional terms
=
( substitute k = 3j )
=
( cross- multiply )
4m = 15j ( divide both sides by 4 )
m =
j , so
j : k : m = 1 : 3 :
( multiply each part by 4 to clear the fraction )
= 4 : 12 : 15
Answer:
191=266+109x
Step-by-step explanation:
It says 191 is the same as 266 added to the product of 109 and _____. i am guessing you meant to say a variable.
Answer:
87.5
Step-by-step explanation:
By completing the square,
y
=-14x^2+70x
=-14(x^2-5x)
=-14(x-5/2)^2+175/2
the max. height=175/2
i.e. 87.5