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Y_Kistochka [10]
3 years ago
10

Simplify the expression. -2(x + 5) - x + 4

Mathematics
1 answer:
wlad13 [49]3 years ago
7 0

Answer:

−3 x −6

Step-by-step explanation:

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Which system is equivalent to<br> y= 9x^2<br> x+y=5<br> ?
melomori [17]

Answer : Option A

Explanation:

we can clearly see that from x+ y=5 we can substitute  y = 5-x in y = 9x^2

Option B is clearly incorrect  x can not be y -5

Option C  is incorrect because y can not be 5 +x

Option D is incorrect because  its y = 9x^2 not y^2 =9x^2 so y can not be 3x

if its y^2 = 9x^2 then  only  implies y =  3x

7 0
3 years ago
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6.
Rudik [331]

Answer:

  (a)  169.1 m

Step-by-step explanation:

The diagram shows you the distance (x) will be shorter than 170 m, but almost that length. The only reasonable answer choice is ...

  169.1 m

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The relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

The leg of the right triangle adjacent to the marked angle is x, and the hypotenuse is 170 m. Putting these values into the equation, you have ...

  cos(6°) = x/(170 m)

  x = (170 m)cos(6°) ≈ (170 m)(0.994522) ≈ 169.069 m

The horizontal distance covered is about 169.1 meters.

_____

<em>Additional comment</em>

Expressed as a percentage, the slope of this hill is tan(6°) ≈ 10.5%. It would be considered to be a pretty steep hill for driving.

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2 years ago
What is the minimum value for the function shown in the graph?
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The minimum value for the function is -6
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3 years ago
Franz is going with his brothers to the county fair. The admission price for the county fair is $7, and the ride tickets cost $3
nikitadnepr [17]
G, 7 is the flat rate price you have to pay and 3.50 is the price for rides since we don’t know the number of time he will ride we will have to times 3.50 to the amount of times he go’s on a ride
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Please i need help asap!! ​
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Answer:

(-4,-1) is the answer to this.

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