3 years ago

-1.5(-4x-4)=4x-2(-5x+8.7)+9

Mathematics

1 answer:

ozzi3 years ago

8 0

Answer:

x = 1.8/ $\frac{9}{5\\}$

Step-by-step explanation:

-1.5(-4x-4) = -1.5(-4x) + -1.5(-4) = 6x + 6

The negatives cancel each other out.

4x-2(-5x+8.7)+9 = 4x + -2(-5x) + -2(8.7) + 9 = 4x + 10x -17.4 + 9 = 14x -8.4

6x + 6 = 14x -8.4

-14x -14x

-8x + 6 = -8.4

-6 -6

-8x = -14.4

/-8 /-8

x = 1.8/ $\frac{9}{5\\}$

You might be interested in

Ion have the right calculator to do this worksheet

AleksAgata [21]

$4(6^2-4\sqrt{16})^2$
$=4(6^2-4(4))^2$
$=4(36-16)^2$
$=4(20)^2$
$=4(20*20)$
$=4(400)$
$=4(400)$
$=1600$

5 0

3 years ago

Hhh I’m very bad at math

barxatty [35]

Answer:

See below;

Step-by-step explanation:

21 . Consider an exponential function;

$Exponential Function in Form - y = a * b^x, where, a - start value, b - growth factor, x - time,\\\\Now y = f ( x ), in Other Words,\\p ( t ) = 300 * ( 0.5 )^t - Given,\\\\Through Substitution - f ( x ) = p ( t ), a = 300, b = 0.5, x = t,\\\\Conclusion ; 300 - ( start value ) - Starting Amount of Milligrams of Compound,\\0.5 - Milligrams Compound Decreases by$