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storchak [24]
3 years ago
5

Hello please evaluate the expression ( 2x - y)

Mathematics
1 answer:
bazaltina [42]3 years ago
5 0
The answer would be 2x-y
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(-2-4y)(-8) how do I solve ??
klasskru [66]
(-2-4y)(-8)
Use distributive property:
(-2*-8)+(-4y-8)
(remember that when 2 negative numbers are multiplied together it becomes positive.

16+32y

Hope this helps :)
3 0
3 years ago
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Which of the following is not an equation of a simple, even polynomial function? y = | x | y = x2 y = x3 y = -x2
den301095 [7]

Answer:

  • y = | x |
  • y = x^3

Step-by-step explanation:

The absolute value function prevents the expression from being a polynomial. The degree of 3 in y^3 is an odd number so that polynomial function will not be even.

5 0
3 years ago
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Sweet Treats sells ice cream cones for​ $4.00 per customer. Variable costs are​ $1.25 per cone. Fixed costs are​ $2,800 per mont
Elanso [62]

Answer:

2.75 dollars

Step-by-step explanation:

4-1.25=2.75

6 0
3 years ago
Sarah is saving to buy a new phone. She needs $150, and she has already saved $63. Write an equation to model this situation. Le
goblinko [34]

Answer: 150-x=63$

Step-by-step explanation:

to solve most missing number equations using addition or subtraction its usually pretty simple

1. figure out the first number. the first number is usually the goal amount. so 150

2. were do i put x? in an equation 150-63 would equal the amount she needs. so when you subtract x from 150 you'd get 63. you already know the goal number 150 goes first and the equation equals 63 so x is going to be whats subtracted from 150

3. put it all together 150(goal)-x(unknown number)=63(the amount she already had)

4.solve 150-87=63

5.check your work 150-63=87

7 0
2 years ago
hello everyone, can someone help me with this question? it's says how are unit rates and equivalent ratios related?​
aleksandrvk [35]

Answer:

A unit rate is a special kind of ratio, where the second number, or the denominator, is equal to one. With a unit rate, you are comparing a quantity to one. Some common unit rates are miles per gallon, price per pound, and pay rate per hour. ... You can simply divide the first number in the ratio by the second

4 0
3 years ago
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