3 years ago

Help fast i am lazy

Mathematics

2 answers:

bearhunter [10]3 years ago

7 0

25 might be the area

olchik [2.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

yes

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what is the y-intercept of the equation of the line that is perpendicular to the line y = 3/5x 10 and passes through the point (

bazaltina [42]

Perpendiculare means the slopes multiply to -1

y=3/5x+10
slope is 3/5
3/5 times what is -1
-5/3 is answer

slope of perpenduclar is-5/3 find y int
y=-5/3+b
point given is (15,-5)
x=15
y=-5

-5=-5/3(15)+b
-5=-25+b
add 25 to both sides
20=b

the yintercept is y=20 or the oint (0,20)

6 0

3 years ago

An electrician charges $30 for a service call plus $75 per hour of service. If he charged 210$ how many hours did he work

tigry1 [53]

Answer:

2 hours 30 minutes

Step-by-step explanation:

210 - 30 = 190

190 / 75 = 2.5

Sorry if I'm wrong.

4 0

3 years ago