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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
Answer:
(12^2)+(4^2)=160
=Large side of a rectangle
(2^2)+(6^2)=40
=small side of a rectangle
area
Step-by-step explanation: 12*4=48/2=24Large triangle area
2*6=12/2=6 small triangle area
Two large triangles=2*24=48
two small triangle=2*6=12
48+12=60
Largerectangle area=14*10=140
140-60=80
Answer:
Step-by-step explanation try b:
C the horizontal line represents x and it goes to -1 you place your coordinates as (x,y)
Answer:
Step-by-step explanation:
cos θ=sinθ
divide by cos θ
1=tan θ
tan θ=1=tan 45,tan (180+45)
θ=45°,225°