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Norma-Jean [14]
2 years ago
14

What is the simplified version of 3x•5-x-2

Mathematics
1 answer:
My name is Ann [436]2 years ago
7 0

Answer:

14x-2

Step-by-step explanation:

1) 15x-x-2

2)14x-2

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On a true/false test, the ration of true questions to false questions is 3 to 7. What is the ratio of true question to total que
svp [43]

Answer:

3 to 10 , 3

Step-by-step explanation:

There are 3 true questions and 7 false question  , in total , there are 10 questions.

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If triangle DEF is an isosceles triangle with DE is congruent to EF, find x and the measure of each side
Rudik [331]

Step-by-step explanation:

Given that,

DE = 8x - 13

EF = 5x + 17

DF = x + 21

Also,

DE = EF

which means that,

8x - 13 = 5x + 17

8x - 5x = 17 + 13

3x = 30

x = 30/3

x = 10

Now,

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3 0
2 years ago
What is bigger 1/3 or 3/5
raketka [301]

Method\ 1:

\dfrac{1}{3}=\dfrac{1\cdot5}{3\cdot5}=\dfrac{5}{15}\\\\\dfrac{3}{5}=\dfrac{3\cdot3}{5\cdot3}=\dfrac{9}{15}\\\\\dfrac{3}{15} < \dfrac{9}{15}\ therefore\ \dfrac{3}{5}\ is\ bigger


Method\ 2:

\dfrac{1}{3} < \dfrac{1}{2}=\dfrac{1.5}{3}\\\\\dfrac{3}{5} > \dfrac{1}{2}=\dfrac{2.5}{5}\\\\therefore\ \dfrac{3}{5}\ is\ bigger

6 0
2 years ago
PLEASE HELP!! BE AUICK AND EXPLAIN!Solve the system by graphing!
zubka84 [21]
The answer to the question is (2,-2) d

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2 years ago
Finding the inverse function for f(x)=1/x^2
Anna [14]

to get the inverse of any expression, we start off by doing a quick switcheroo on the variables and then solve for "y".

\stackrel{f(x)}{y}=\cfrac{1}{x^2}\implies \stackrel{\textit{quick switcheroo}}{x=\cfrac{1}{y^2}}\implies y^2=\cfrac{1}{x}\implies y=\sqrt{\cfrac{1}{x}}\implies \stackrel{f^{-1}(x)}{y}=\cfrac{1}{\sqrt{x}}

4 0
2 years ago
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