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mario62 [17]
3 years ago
5

How do you solve z = 3x + 4y

Mathematics
1 answer:
ELEN [110]3 years ago
7 0
Free points for youngk the goat
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So this is the first question/ discussion i have to do.
Rainbow [258]

Answer:

arrange 3+4=5

Step-by-step explanation:

because 3 square = 9 and 4 square =16 and their sum is 25 and the square of 5 is 25 . both are same .

Hence proved

3 0
2 years ago
Find the rate of ounces of what I need for each packages of flavoring
Vitek1552 [10]
4. 12×23= 276 ounces <span>for 23 packages of flavoring</span>
6 0
3 years ago
Answer the question in the picture
Svet_ta [14]
<h3>Answer:</h3>
  • left picture (bottom expression): -cot(x)
  • right picture (top expression): tan(x)
<h3>Step-by-step explanation:</h3>

A graphing calculator can show you a graph of each expression, which you can compare to the offered choices.

_____

You can make use of the relations ...

... sin(a)+sin(b) = 2sin((a+b)/2)cos((a-b)/2)

... cos(a)+cos(b) = 2cos((a+b)/2)cos((a-b)/2)

... cos(a)-cos(b) = -2sin((a+b)/2)sin((a-b)/2)

Then you have ...

\dfrac{\cos{2x}-\cos{4x}}{\sin{2x}+\sin{4x}}=\dfrac{2\sin{3x}\sin{x}}{2\sin{3x}\cos{x}}=\dfrac{\sin{x}}{\cos{x}}=\tan{x}

and ...

\dfrac{\cos{2x}+\cos{4x}}{\sin{2x}-\sin{4x}}=\dfrac{2\cos{3x}\cos{x}}{-2\cos{3x}\sin{x}}=\dfrac{-\cos{x}}{\sin{x}}=-\cot{x}


6 0
3 years ago
Below is a list of test scores for the ninth grade math and science classes at Campbell High School:
saveliy_v [14]

Answer:

C. The mean is the best measure of central tendency for the math class.

Step-by-step explanation:

4 0
3 years ago
There are 365 days in a year and 24 hours in a day. An airport camera records for 18 hours and then automatically resets itself
likoan [24]

The answer is 486.6

There are 8,760 hours in a year, so 18 divided by 8,760 would = 486.6

5 0
3 years ago
Read 2 more answers
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