Answer:
a= -6
Step-by-step explanation:
Given
a=2+3a+10
In order to find the value of a, we have to isolate a on a single side of the equation
So,
subtracting 3a from both sides
a-3a = 2+10+3a-3a
=>a-3a=12
=> -2a = 12
Dividing both sides by -2
=> -2a/-2 = 12/-2
=> a = -6
The value of a in the given equation is -6 ..
The left side−8 is less than the right side48
,which means that the given statement is always true.
True
Answer:
⠀
Step-by-step explanation:
⠀
As it is given that, the length of a rectangle is 5 in longer than its width and the perimeter of the rectangle is 58 in and we are to find the length and width of the rectangle. So,
⠀
Let us assume the width of the rectangle as x inches and therefore, the length will be (x + 5) inches .
⠀
Now, <u>According to the Question :</u>
⠀

⠀

⠀

⠀

⠀

⠀

⠀

⠀

⠀
Therefore,
- The width of the rectangle is 12 inches .
⠀
Now, We are to find the length of the rectangle:

⠀

⠀

⠀
Therefore,
- The length of the rectangle is 17 inches .
⠀
Answer:
2. is x = -3
Step-by-step explanation:
-3( x - 3) = 12
multiply the things in the () by -3
-3x+9=12
subtract 9 from both sides
-3x+9-9=12-9
-3x=3
divide both sides of the equation by -3
x = -3
It is a function because every Celsius temperature is associated with only one Fahrenheit temperature. Therefore, option B is true.
<h3>How to convert
Celsius into
Fahrenheit ?</h3>
We are given that the temperature in degrees Celsius C can be converted to degrees Fahrenheit F
We know that the formula

If we are substituting c = -40
Then, we get

For every Celsius temperature, we get only one value of Fahrenheit.
The function is one-one because for every value of Celsius we get a unique value of Fahrenheit.
Hence, it is a function because every Celsius temperature is associated with only one Fahrenheit temperature.
Therefore, option B is true.
Learn more about temperature scale here:
brainly.com/question/2919967
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