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CaHeK987 [17]
4 years ago
13

Give two examples that show using parentheses can change

Mathematics
1 answer:
Grace [21]4 years ago
8 0
X=2
-x^2=-2^2=4
-(x)^2=-(2)^2=-4

3(X+5)=3X+15
3 x X+5=3X=5
You might be interested in
What is the value of x?
Rama09 [41]

Answer:

x = 70

Step-by-step explanation:

45+2x-5 = 180

2x = 180 - 40

x = 140/2

x = 70

5 0
3 years ago
I need help on the math question!
TEA [102]

Answer:

  3 and 7

Step-by-step explanation:

You know from your multiplication tables that ...

  21 = 1×21 = 3×7

There are no other factorizations of 21 using integers. You may notice that the sums of these factors are ...

  1+21 = 22

  3+7 = 10 . . . . . . this is the pair of numbers you are looking for

The two numbers are 3 and 7.

6 0
3 years ago
Mr. Applebaum told his wife that he weighed 180 pounds before his doctor’s appointment. When he got to the doctor’s office and w
iren2701 [21]

Answer:

The percent error was 115% .

Step-by-step explanation:

It's ez u can do it on a calculator.

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctext%7BSolve%20for%20%27x%27.%7D%7D%5C%5C%5C%5C%5Cfrac%7Bx%2B3%7D%7B6%7D%3D%5Cfr
evablogger [386]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

x = 1

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

\boxed{\text{Calculating the answer...}}\\\\\frac{x+3}{6}=\frac{2}{3}\\\----------\\\rightarrow  (\frac{x+3}{6})6=(\frac{2}{3})6\\\\\rightarrow x + 3 = 4\\\\\rightarrow x + 3 - 3 = 4 - 3\\\\\rightarrow \boxed{x=1}

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

7 0
3 years ago
Read 2 more answers
Plz help I need with this answer
Ilia_Sergeevich [38]

Answer: -5

Step-by-step explanation: all three angles in a triangle add up to 180 degrees

8 0
3 years ago
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