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AlexFokin [52]
3 years ago
12

Which expression is positive (-7)(13) or (14)(-2)?

Mathematics
2 answers:
azamat3 years ago
7 0
Neither of them are positive because a negative times a positive is always a negative.

now if there is a typo, and these are supposed to be added/subtracted, then that is a different story
sergiy2304 [10]3 years ago
6 0
Neither of them are positive. Unless you have two positives that multiply each other. Correct me if I understand the problem wrong please.
You might be interested in
F(x) = -3(x - 11)(x + 1)
il63 [147K]

Answer:

Step-by-step explanation:

8 0
3 years ago
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation
Alexxx [7]
Ok

y=-0.04x^2+8.3x+4.3
when the rocket reaches the ground (when height=0, ie when y=0), then the rocket will land, find the x coordinate

set y=0
0=-0.04x^2+8.3x+4.3
use quadratic formula
if you have ax^2+bx+c=0, then
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}
a=-0.04
b=8.3
c=4.3
x=\frac{-8.3+/- \sqrt{8.3^{2}-4(-0.04)(8.3)} }{2(-0.04)}
x=208.017 or -0.516785
xrepresents horizontal distance
you cannot have a negative horizontal distance unless you fired and theh wind blew it backwards
therefor x=280.017 is the answer
208.02 m


7 0
3 years ago
HELP ME WITH THIS! <br> Plz
Lelu [443]
It is 3 and 1/14ft or 3 and 4/16 ft taller
6 0
2 years ago
L.c.m of 84 ,27,35,45 <br>please help​
den301095 [7]

Answer:

3780

Step-by-step explanation:

84 = 2^2 * 3 * 7

27 = 3^3

35 = 5 * 7

45 = 3^2 * 5

lcm = 2^2 * 3^3 * 5 * 7 = 3780

8 0
3 years ago
Solve 3x^2 = −12x − 15.
vitfil [10]
3x^2+12x+15=0


Then divide by 3 to get the x by itself. 
x^2+4x+5=0


Factor to (x+5) (x-1) and solve for the two values of x.
4 0
2 years ago
Read 2 more answers
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