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alisha [4.7K]
2 years ago
15

B+2/2≤–1 please help me, and give me A C T U A L answers

Mathematics
1 answer:
trapecia [35]2 years ago
4 0

Answer:

i need more info to help

Step-by-step explanation:

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The graph of the function f(x)
Oksi-84 [34.3K]

Step-by-step explanation:

A special relationship where each input has a single output. It is often written as "f(x)" where x is the input value. Example: f(x) = x/2 ("f of x equals x divided by 2") It is a function because each input "x" has a single output "x/2": • f

4 0
2 years ago
Which expressions are equivalent to -0.5(4-2+8x)? Select all that apply.
ludmilkaskok [199]

Answer:

3 4 6

Step-by-step explanation:

7 0
2 years ago
5. A store sells bags of pecans for $3.00, bags of walnuts for $3.50, and bags of almonds for $4.00. One day, 15
kondaur [170]

Answer:

x = 4

y = 6

z = 5

Step-by-step explanation:

Let

bags of pecans = x

bags of walnuts = y

bags of almonds = z

x + y + z = 15

3x + 3.5y + 4z = 53

Two more bags of walnuts were sold than pecans.

Walnuts = x + 2

x + y + z = 15

3x + 3.5y + 4z = 53

x + x + 2 + z = 15

3x + 3.5(x+2) + 4z = 53

2x + z = 15 - 2

3x + 3.5x + 7 + 4z = 53

2x + z = 13 (1)

6.5x + 4z = 46 (2)

Multiply (1) by 4

8x + 4z = 52 (3)

6.5x + 4z = 46 (2)

Subtract (2) from (3)

8x - 6.5x = 52 - 46

1.5x = 6

Divide both sides by 1.5

x = 4 bags

y = x + 2

= 4 + 2

= 6

y = 6 bags

Substitute the value of x into (1)

2x + z = 13 (1)

2(4) + z = 13

8 + z = 13

z = 13 - 8

= 5

z = 5 bags

Check:

x + y + z = 15

4 + 6 + 5 = 15

5 0
3 years ago
How can you tell if an equation has direct variation? (Direct variation means proportional)
mario62 [17]
Direct variation/proportional means that one variable is always a multiple of the other variable.

It looks something like y = n /cdot x, where n is any number.
7 0
2 years ago
The half-life of rhodium is about 30 seconds. you start with 500 grams. Write an equation
adoni [48]

Half life is the period of time after which half amount of element is decayed.

Half life of rhodium = 30 sec

Amount of rhodium = 500 grams

how to write the equation, if we know the half life and starting or initial amount of rhodium is:

N = 500 g (1/2)^(t / 30 sec) 

t is the time and

<span>N is the amount of rhodium left at time t.</span>

5 0
3 years ago
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