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vredina [299]
2 years ago
13

Abi has 20 cents. Se bought x pencils for 3 cents each. If y equals the number of cents left, write an equation that shows the d

ependence of y on x. What is the domain of the function?
Mathematics
1 answer:
Anna35 [415]2 years ago
7 0

Answer:

<u>The function would be:</u>

  • y = 20 - 3x

<u>Since y should be positive or zero:</u>

  • 20 - 3x > 0
  • 3x < 20
  • x < 7

So x can get values from 0 to 6.

<u>The domain is:</u>

  • x∈N, x = [0, 6]
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Please help with this, thanks
Readme [11.4K]

Answer:

BDC is half of mBC = 11°

Easily you see that C is A + BDC = 23°

Since C = 23° so mDC is twice = 46°

x

8 0
3 years ago
Simplify x to the 1/3 power (x to the 1/2 power + 2x to the 2 power )
OverLord2011 [107]

Answer:

x^(5/6) + 4(x^(7/3))


Step-by-step explanation:

Simplify x to the 1/3 power MULTIPLIED BY (x to the 1/2 power + 2x to the 2 power )


Simplify x^(1/3) × (x^(1/2) + (2x)^2)

= x^(1/3)(x^(1/2)) + x^(1/3)((2x)^2)

= x^(1/3+1/2) + 4(x^(1/3+2))

= x^(5/6) + 4(x^(7/3))


x^(1/3) is y such that y^3 = x

(x^(1/3) × x^(1/3) × x^(1/3)) = x^(1/3+1/3+1/3) = x^1 = x


x^(1/2) = √2 = y such that y^2 = x

(2x)^2 = 4x^2






6 0
2 years ago
A small toy company makes only cars and trucks. The profit made on cars is $2 each and the profit made on trucks is $3 each. To
pishuonlain [190]
A toy company needs to profit at least $500 from selling cars and trucks. A car can make a profit $2 while the truck can $3 profit.
let x be the number of cars
let y be the number of truck
If 200 resources for the car per week, we have:
Profit =  $2x + $3y
$500 = $2*200  +  $3*y
$500 - $400 = $3y
100 = 3y
y =100/3 = 33.33

The number of trucks needs to produce per week is at least 34 pieces.
8 0
3 years ago
Help me wick show you work
expeople1 [14]
3 to 9 clouds are smiley faces Explaintion- hope it’s right
3 0
2 years ago
Read 2 more answers
Q # 2 Graph TWX and it's image after a rotation of 90° counterclockwise about the origen
const2013 [10]
<span>For a rotation of 90o:  (x, y) ⇒ (–y, x)
T(3,4) ⇒⇒⇒ T'(-4,3)
W(-2,-1) ⇒⇒⇒ W'(1,-2)
x(-3,3) ⇒⇒⇒ x'(-3,-3)

see the attached figure


</span>

6 0
3 years ago
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