1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marysya [2.9K]
2 years ago
15

Simplify:- ~~~~~~~

Mathematics
2 answers:
Alchen [17]2 years ago
7 0

\sf \dashrightarrow \:  -  \frac{2}{5}  - ( -  \frac{3}{10} ) - ( -  \frac{4}{7} )

When there is a - in front of an expression in parentheses, change the sign of each term in the expression to +

\sf \dashrightarrow \:  -  \frac{2}{5}    + \frac{3}{10}  +  \frac{4}{7}

Calculate the LCM of denominators

\sf\frac{ - 28 + 21 + 40}{70}

Calculate the difference

\bf \underline{ \underline \frac{33}{70} }

denpristay [2]2 years ago
6 0

\\ \rm\rightarrowtail \dfrac{-2}{5}-\left(-\dfrac{3}{10}\right)-\left(-\dfrac{4}{7}\right)

  • (-)(-)=(+)

\\ \rm\rightarrowtail \dfrac{-2}{5}+\dfrac{3}{10}+\dfrac{4}{7}

\\ \rm\rightarrowtail \dfrac{-28+21+40}{70}

\\ \rm\rightarrowtail \dfrac{-7+40}{70}

\\ \rm\rightarrowtail \dfrac{33}{70}

You might be interested in
How are the functions f(x)=16^x and g(x)=16^(1/2)x related? The output values of g(x) are one-half the output values of f(x) for
Goshia [24]
F(x) =16ˣ     and   g(x) = 16⁽ˣ/₂⁾

Since 16 = 2⁴, then we can write:

f(x) =2⁽⁴ˣ⁾  and  g(x) = 2⁽⁴ˣ/₂⁾ = 2²ˣ

for x = 1 f(x) =  2⁴ = 16
for x = 1 g(x) = 2² = 4
(√16 = 4)

for x = 2 f(x) =  2⁸ = 256
for x = 2 g(x) = 2⁴ =16
(√256) = 16

for x = 3 f(x) =  2¹² = 4096
for x = 1 g(x) = 2⁶ =  64
(√4096 = 64)

We notice that:
The output values of g(x) are the square root of the output values of f(x) for the same value of x.
 
6 0
3 years ago
Read 2 more answers
Chau will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $44 and costs an
wariber [46]

Answer:

I don't know

Step-by-step explanation:

i don't know

7 0
2 years ago
pat has three pieces of fabric that measure 3/6 5/6 and 2/6 yards long . write the lengths in order from least to greatest
Harrizon [31]
The least to greatest would be 2/6, 3/6, 5/6.
As they all have the same denominator you look at the numerator to figure out the least to greatest. 2/6 is the shortest yard and 5/6 is the longest yard so it would be greater than 2/6.
6 0
3 years ago
What is the dollar value of 10 pennies and 3 nickels? What is the dollar value of p
Citrus2011 [14]

Answer:

25

Step-by-step explanation:

5 0
3 years ago
Please help me I don't understand this
Svetlanka [38]
YOU JUST DO 28*7 and you get 196
8 0
3 years ago
Other questions:
  • Please help!
    6·2 answers
  • Can someone help me please .. I NEED HELP ASAP .
    14·2 answers
  • 1. Preliminaries We (the RAF in World War II) want to know the number of warplanes fielded by the Germans. That number is N. The
    6·1 answer
  • you have enough tickets to play 6 different games at a amusement park. if there are 14 games, how many ways can you choose six?
    7·1 answer
  • The equation of the line that has a slope of 2/3 and goes through the point (-6,6)
    5·1 answer
  • conjectures math statement 2(x^2+5)=60 what is the reason? 2x^2+10=60 what is the reason? 2x^2=50 what is the reason? x^2=25 wha
    6·2 answers
  • Solve the following equation. Then place the correct number in the box provided.
    12·1 answer
  • Please help me anyone
    7·1 answer
  • Hello everyone just wanna ask how are you doing?
    11·1 answer
  • the volume of a rectangular prism is 21/12 ft3 , and the height of the prism is 3/4 ft. determine the area of the base
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!