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a product of a number and -2 increased by 8 is -4. what is the number?
a product of a number and -2 increased by 8 is -4. what is the number?
10/14/2014 | Alvin from Plano, TX | 1 Answer | 0 Votes
Geometry
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1 ANSWER
Nathan B.
Sacramento, CA
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A product means multiplication, so...
(x * -2) +8 = -4
-2x + 8 = -4
To isolate the x, we have a couple of different ways, but the easier for now would be to start off by moving the 8 to the other side via subtracting both sides by 8:
-2x + 8 - 8 = -4 - 8
-2x = -12
Next, we divide both sides by -2
-2x / -2 = -12 / -2
x = 6
Take the cross product of both sides of

with

to generate a system of three simultaneous equations.



since

for any vector

.
Finally, use the fact that the cross product is anticommutative, i.e.

. The conclusion follows.
Answer:
Step-by-step explanation:
So... I have several questions.
Answer:
she makes $6.676 an hour
Step-by-step explanation:
402.17-93.26-41.86=267.05/40=6.67625