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erik [133]
3 years ago
12

The equality

\sqrt{x^{2}} =-x" align="absmiddle" class="latex-formula"> is true for ______________
format the answer should be in:
x\  \textless \ -3; x\  \textless \ 3\  \textless \ 7; x; x\  \textgreater \ 7
Mathematics
1 answer:
mario62 [17]3 years ago
6 0

Answer:

X < -3

Step-by-step explanation:

-x will be positive when x < -3

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ANSWER IS 80 COOKIES.

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3 years ago
Kathy wants to buy a camera with an original price of $389. The camera is on sale with a 33% discount. What is the amount of dis
Verizon [17]

Answer:

$128.37

Step-by-step explanation:

Find 33% of 389:

389(0.33) = 128.37

The amount of the discount is $128.37

6 0
3 years ago
Which graph represents the equation y = 20(1.25)^x?​
Helga [31]

Answer:

Graph (1)

Step-by-step explanation:

Given equation of the graph is,

y = 20(1.25)ˣ

Table for the input - output values of the function,

x          -2          -1          0          

y         12.8        16        20  

These points lie on curve (1).

Therefore, curve (1) will be the graph represented by the equation.

7 0
3 years ago
What is the mode for the following set of data? 2, 5, 7, 8, 11, 11, 12
aleksley [76]
Mode = 11

Reason: 11 appeared twice, which is the most frequent number observed in this set of data.
8 0
3 years ago
16. How many liters of a 60% alcohol solution must be added to 60 liters of a 30% alcohol
Nezavi [6.7K]

Step-by-step explanation:

Step 1: Question statement and Inferences

Let x liters of the 60% solution be added.

So, amount of Alcohol in this solution = 60% of x = 0.6x L

Now, let us consider the 40% solution.

The total volume of this solution is 50 L

So, amount of Alcohol in this solution = 40% of 50

 

Step 2: Finding required values

When x L of 60% solution are mixed with 50 L of the 40% solution, the total volume of the resultant solution will be (50+x) L

By the Law of Conservation of Mass,

Amount of alcohol in the input solutions = Amount of alcohol in the final solution

=> Amount of alcohol in the final solution = 20 + 0.6x

So, concentration of Alcohol in the final solution



Step 3: Calculating the final answer

It is given that the concentration of alcohol in the final solution is 50%



8 0
3 years ago
Read 2 more answers
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