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3 years ago

What is the sum of a number and 9?

Mathematics

2 answers:

ss7ja [257]3 years ago

8 0

Answer:

x+9

x --> the "number" (not determined)

9 --> what the problem gave

+ --> to put them together and form the sum

Kamila [148]3 years ago

5 0

Answer:

Step-by-step explanation:

Let,

The unknown number be = x

And ,

Given number to be added = 9

Hence, 

The sum occurred = x + 9 (sum of a number and 9)

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son4ous [18]

Answer:

180

Step-by-step explanation:

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3 years ago

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denis-greek [22]

Answer:

Step-by-step explanation:

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2 years ago

During a walk on a trail, Rose walked a total of 3,674 steps. Assume that she takes the same number of steps each time she

Free_Kalibri [48]

Answer:

40,790 steps

Step-by-step explanation:

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2 years ago

the point (-1,0.5) lies on the graph of f^-1(x)=2^x based on this information, which point lies on the graph of f(x)=log2x

Norma-Jean [14]

Answer:

(-1,0.5)...

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Step-by-step explanation:

3 0

3 years ago

Verify identity: (sec(x)-csc(x))/(sec(x)+csc(x))=(tan(x)-1)/(tan(x)+1)

Nikitich [7]

So hmmm let's do the left-hand-side first

$\bf \cfrac{sec(x)-csc(x)}{sec(x)+csc(x)}\implies \cfrac{\frac{1}{cos(x)}-\frac{1}{sin(x)}}{\frac{1}{cos(x)}+\frac{1}{sin(x)}}\implies 
\cfrac{\frac{sin(x)-cos(x)}{cos(x)sin(x)}}{\frac{sin(x)+cos(x)}{cos(x)sin(x)}}
\\\\\\
\cfrac{sin(x)-cos(x)}{cos(x)sin(x)}\cdot \cfrac{cos(x)sin(x)}{sin(x)+cos(x)}\implies \boxed{\cfrac{sin(x)-cos(x)}{sin(x)+cos(x)}}$

now, let's do the right-hand-side then

$\bf \cfrac{tan(x)-1}{tan(x)+1}\implies \cfrac{\frac{sin(x)}{cos(x)}-1}{\frac{sin(x)}{cos(x)}+1}\implies \cfrac{\frac{sin(x)-cos(x)}{cos(x)}}{\frac{sin(x)+cos(x)}{cos(x)}}
\\\\\\
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7 0

3 years ago