in acertain street of 200 houses 170 have electricity and 145 have glass doors. how many houses have both electricity and glass doors assuming that each has either a glass doors or electricity or both

115

Step-by-step explanation:

Number of houses in the street which have both electricity and glass doors = (170 + 145) - 200 = 315 - 200 = 115

Hope it helps : )

Any doubts?

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: