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Margaret [11]
3 years ago
12

Can someone help me out my math grads are bad

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0

Answer:

Perimeter = 9x + 12x + 15x

Perimeter = 36x (simplified)

dybincka [34]3 years ago
7 0

Answer:

Step-by-step explanation:

First answer: 9x+12x+15

Second answer: 21x+15

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What do you think it means when the change is positive? Negative? in a mathematical way​
SashulF [63]

Answer:

A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.

8 0
2 years ago
Read 2 more answers
What are the zeros of the quadratic function f(x) = 2x2 + 16x – 9?
Lena [83]
To find the zeros of this equation you need to first set it equal to zero
2x2 + 16x - 9 = 0
But since you can't FOIL this equation you need to move the non-variable number over
2x2 +16x = 9
Now solve for x by pulling an x out of the equation
x(2x + 16) = 9
x = 9
2x +16 = 9
2x = -7
x = -7/2
So your zeros would be at x = 9, and -7/2
7 0
3 years ago
4x-5y=15<br> can someone plz explain this
AVprozaik [17]
Well if you are solving for y 
the answer is 

Y= 4/5x- 3

if you are solving for x 
the answer is 
X=5/4y + 15/4

*look at the image for the work*

7 0
3 years ago
PLEASE HELP ASAP T^T
chubhunter [2.5K]

9514 1404 393

Answer:

  no feasible solutions

Step-by-step explanation:

There are so many inequalities that determining the area covered by all 5 of them is problematic. Hence, we have reversed all of them in the attached graph, so any feasible solution region would remain white. Alas, there is no such region.

This system of inequalities has <em>no feasible solution</em>.

3 0
2 years ago
Q2 (i). A line “t” is parallel to 3y = 6x + 9. Find the slope of this line “t”. (ii) Another line “r” is perpendicular to the li
Mariulka [41]

Answer: 6 and -1/6

Step-by-step explanation:

solving for y. You get y = -2x +5, so the slope is –2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6.

7 0
3 years ago
Read 2 more answers
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