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babymother [125]
4 years ago
14

Simplify the expression.

Mathematics
1 answer:
Nana76 [90]4 years ago
6 0
The answer is the A. I hope this helps!
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-0.333333333 into a fraction
sweet [91]

Answer:

-1/3

Step-by-step explanation:

1/3 is 0.33333... and then you just put a negative sign in front of it.

4 0
4 years ago
Read 2 more answers
I need help On these 8 questions that are blank
Ostrovityanka [42]

Answer:

X = 5

Step-by-step explanation:

3x + 12 + 9x = 72

okay hopefully i can explain so when your doing this combine like terms so

3x + 9x = 12x

12x + 12 = 72

then you would subtract both sides by 12

+12 = subtract x+12=2

- 12 = add x-12=2

there just flipped so in this case i would subtract 12

12x + ( 12-12) = ( 72-12 )

so 12-12 = 0 and 72-12 is equal to 60

12x = 60

the divide on both sides l but leave the x alone so its just 60 divided by 12 wich is 5

so X = 5

hope this helps with ur homework a little btw go back and redo ur other awnsers with this new concept hope it helps

7 0
4 years ago
If there are 5 times as many cars as trucks and a total of 30 cars and trucks together how many trucks ?
chubhunter [2.5K]
Let t be the amount of trucks.
Thus 5t is the amount of cars.

t + 5t = 30
6t = 30
t = 30/6
t = 5

Therefore, there are 5 trucks
8 0
4 years ago
Read 2 more answers
3. Why do cube roots of negative numbers exist in the set of real numbers,
Paladinen [302]

Answer:

  C. The square root of a number, positive or negative, is always positive. However, the cube of a negative number is negative.

Step-by-step explanation:

Of the choices offered, the one shown above is the only one that remotely makes any sense. Its description of square roots is erroneous, however.

The square root of a number n is the solution to the equation ...

  x² = n

The function f(x) = x² has a range that only includes non-negative numbers, so the square root of a negative number does not exist. (Your answer choice says it is positive. It is actually non-existent among real numbers.)

On the other hand, the cube root of a number n is the solution to the equation ...

  x³ = n

Since f(x) = x³ has a range that includes all real numbers, the cube root of n exists for all real numbers. (It is negative for negative values of n.)

_____

<em>Comment on answer wording</em>

The answer wording would be correct if the word "root" were left out.

3 0
3 years ago
Read 2 more answers
Geometry question PLS HELP!!!!!!!!111
SOVA2 [1]
5k-3+9+k=180
6k+6=180
6k=174
k= 174/6= 29

2(180-2h)+40=180
360-4h=140
4h=360-140=220
h=55
5 0
3 years ago
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