The angle of a triangle in the ratio 1:3:5 how much is the larger angle​

100°

Step-by-step explanation:

The sum of all the angles in a triangle is 180°.

This is 1 + 3 + 5 = 9

180 ÷ 9 = 20

The scale factor is 20.

Multiply 5 (the greatest angle) by the scale factor.

5 x 20 = 100

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)