3 years ago

Simplify the expression: 10x–8xy–3xy 2ab–7ab+7a2 –a^4+2a^3–4a^4+2a^2–3a^2

1 answer:

Mila [183]3 years ago

8 0

10x - 8xy - 3xy
= x ( 10x - 11xy )

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Sladkaya [172]

9xh = total cost of the hat
9 per hat - 4 = $5 each scarf

h = hat
s = scarf
(9xh) + (5x s)
(9x7) + (5x9) = 108

8 0

3 years ago

VMariaS [17]

Its1. every number/variable that has a power to the zero, its goin to turn out to be just one

4 0

3 years ago

Bond [772]

The options are wrong lol, it is -1/8

8 0

3 years ago

sveta [45]

$\vec r(t)=\langle e^t\cos8t,e^t\sin8t\rangle$

$\|\vec r'(t)\|=\sqrt{(e^t(\cos8t-8\sin8t))^2+(e^t(\sin8t+8\cos8t))^2}=e^t\sqrt{(\cos8t-8\sin8t)^2+(\sin8t+8\cos8t)^2}$

$\implies\|\vec r'(t)\|=e^t\sqrt{65}$

Then

$s(t)=\displaystyle\sqrt{65}\int_{-\infty}^te^u\,\mathrm du=\sqrt{65}e^t$

3 0

3 years ago

scoundrel [369]

I think it is c. but i'm not sure

3 0

3 years ago