Help plz. 6th grade math

Mathematics

2 answers:

evablogger [386]3 years ago

6 0

Answer:

2.5z^2+3z+4.2

Step-by-step explanation:

ArbitrLikvidat [17]3 years ago

5 0

I’m not quite sure what the question is but i’m guessing you need to simplify, if not lemme know and i’ll try help.

first combine the squared terms which is 1.5z^2+z^2= 2.5z^2

second combine the z terms
6z-3z=3z

then combine the numerical terms
4.5-0.3=4.2

so simplified that equation is
2.5z^2 + 3z + 4.2

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What is the equation of the line that passes through the point (1, 3) and is perpendicular to the line 2x+3y=15?

cricket20 [7]

Answer:

y = 1.5x + 1.5

Step-by-step explanation:

First, plot 2x + 3y = 15 on a graph. Then plot (1,3) on a graph. After that, draw a line that passes through (1,3) and forms 90 degrees angles with 2x + 3y = 15. Then find the equation of that line by finding the y-intercept (0, 1.5). Then head up to the intersection point (1.6153846153846, 3.9230769230769). Subtract 1.5 from y. (2.4230769230769) Then divide by 1.5 (1.6153846153846). Reverse the operations you just did (in reverse order) to get the equation y = 1.5x + 1.5.

(I don't know how to explain this too well. Here's a graph to make more sense of it.)