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stira [4]
3 years ago
9

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

Mathematics
2 answers:
Delvig [45]3 years ago
7 0

First simplify the parenthesis;

-1/3 - 3/5 =

(-1/3) +(-3/5) [it changed sign cause, (-)(-) = +]

So now you must find the LCD to be able to add them;

(-5/15) + (-9/15) = -14/15

So your final answer would be:  -14/15  or  option C.


Illusion [34]3 years ago
3 0
\frac{-1}{3} + \frac{-3}{5}
You need to use the equation for adding fractions, which is \frac{a}{b} + \frac{c}{d} =(ad+bc)/bd

In this case,  a=-1, b=3, c=-3, d=5. 


 \frac{(-1*5)+(3*-3)}{(3*5)}

simplify

answer: \frac{-14}{15}
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FIND.......16 2/3 % of 96 lamps
r-ruslan [8.4K]
<em>Convert percentage to fraction by dividing by 100</em>
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3 years ago
Which are the solutions of the quadratic equation? x2 = 9x + 6
Lelechka [254]
X^2 = 9x + 6
x^2 - 9x - 6 = 0
use quadratic formula : (-b (+-) sqrt b^2 - 4ac) / (2a)
a = 1, b = -9, c = -6
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8 0
3 years ago
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What is 29/5 as a mixed fraction
Alina [70]
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6 0
3 years ago
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Mr.yueng graded his students math quizzes students came up with four different answers when solving the equation x3=22. Which an
alex41 [277]

The question is incomplete. Here is the complete question:

Mr.yueng graded his students math quizzes students came up with four different answers when solving the equation x3=22. Which answers is correct.

(A) \frac{22}{3}

(B) \sqrt[3]{22}

(C) \pm \sqrt[3]{22}

(D) \sqrt{22}

Answer:

(B) \sqrt[3]{22}

Step-by-step explanation:

Given:

The equation to solve is given as:

x^3=22

Here, the left hand side of the equation has a variable 'x' in exponent form. So, in order to solve for 'x', we have to eliminate the exponent.

For removing the exponent, we have to take cubic root on both the sides. As we know that,

\sqrt[n]{x^n} =x

So, taking cubic root on both the sides, we get

\sqrt[3]{x^3}=\sqrt[3]{22}\\\\x=\sqrt[3]{22}

Therefore, the second student has written the correct answer and hence the correct option is (B).

6 0
3 years ago
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