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Bezzdna [24]
3 years ago
10

What is the sum of | 12 | and | 9 |?​

Mathematics
2 answers:
scZoUnD [109]3 years ago
6 0

Answer:

21

Step-by-step explanation:

Module's cannot be negative, so |12|+|9|= 21, no change in the equation. If you had |-12|+|-9|, the answer would be the same, since modules cannot be negative. 12+9 = 21

elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

21

Step-by-step explanation:

The symbols around the numbers are just absolute value signs, they do not affect positive numbers.

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Write the equation of the graph obtained when the graph of y=1/x is compressed vertically by a factor of 0.25, translated 4 unit
Shtirlitz [24]

Answer: The equation is y = 0.25/(x - 4) + 3

Step-by-step explanation:

If we have a function y = f(x)

A compression means that we multiply the function by a factor smaller than 1.

Then the vertical compression by a factor of 0.25 is:

y = 0.25*f(x)

a translation by A units to the right, means that we need to valuate the function in x - A.

So now we have:

y = 0.25*f(x - 4)

A translation in the y-axis means that we need to add a constant to the equation, then if we tralate it by 3 units up, we have:

y = 0.25*f(x - A) + 3

Then, if f(x) = 1/x

Our new equation is:

y = 0.25/(x - 4) + 3

8 0
3 years ago
Read 2 more answers
3|1/2x + 5| + 7 = 5
egoroff_w [7]

Answer:

<em>x is -34/3 and -26/3</em>

Step-by-step explanation:

Given the expression

3|1/2x+5| + 7 = 5

Removing the modulus sign

3(1/2x+5) + 7 = 5

Subtract 7 from both sides

3(1/2x+5) + 7 - 7= 5 - 7

3(1/2x+5) = -2

Open the bracket

3/2 x + 15 = -2

Subtract 15 from both sides

3/2 x + 15-15 = -2 - 15

3/2 x = -17

3x = -2*17

3x  = -34

x = -34/3

<em>Hence the value of x is -34/3</em>

<em>For the negative function:</em>

3(1/2x+5) + 7 = 5

Subtract 7 from both sides

3(-(1/2x+5)) + 7 - 7= 5 - 7

3(-1/2x-5) = -2

Open the bracket

-3/2 x - 15 = -2

Add 15 from both sides

3/2 x + 15-15 = -2 + 15

-3/2 x = 13

-3x = 2 * 13

-3x  =26

x = -26/3

<em>Hence the value of x is -26/3</em>

4 0
3 years ago
If there are 36 boys and 18 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
kow [346]

Answer :36: 18

Step-by-step explanation:

5 0
3 years ago
What is the expression 1/3b-1/3 factored?
finlep [7]

1/3b -1/3

= 1/3(b-1)

Sorry if I am wrong

7 0
3 years ago
Read 2 more answers
Plz help ASAP plz!!!
zysi [14]

Answer:

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cos47 = -0.99

sin77 = 0.99

Step-by-step explanation:

There are several free online calculators that can help you do this! I recommend Desmos!

7 0
3 years ago
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