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Mademuasel [1]
2 years ago
12

Solve 3a 17 7 8 9 - (2² + 1)² + a when a = 8

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
7 0

\huge\text{Hey there!}

\huge\textbf{Assuming the equation should be:}

\mathbf{3a - (2^2 + 1)^2 + a}

\huge\textbf{Simplify it: }

\mathbf{3a - (2^2 + 1)^2 + a}

\mathbf{= 3(8) - (2^2 + 1)^2  + 8}

\mathbf{= 24 - (2^2 + 1)^2 + 8}

\mathbf{= 24 - (4 + 1)^2 + 8}

\mathbf{= 24 - 5^2 + 8}

\mathbf{= 24 - 25 + 8}

\mathbf{= -1 + 8}

\mathbf{= 7}

\huge\textbf{Therefore, your answer should be:}

\huge\boxed{\frak{Option\  B. 7}}\huge\checkmark

\huge\text{Good luck on your assignment \& enjoy your day!}

<h3>~\frak{Amphiitrite1040:)}</h3>
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Answer:

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Step-by-step explanation:

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3 years ago
The measure of two complementary angles have a ratio of 3:7. Set up and solve an equation to determine the measurements of the t
Bond [772]
Answer: Angle 1 = 27
              Angle 1 = 63

Remember: complementary angles always add up to 90 degrees.

Set up your equation.
3x + 7x = 90          Combine like terms
10x = 90                Divide by 10 to both sides
x = 9                      Answer!

Substitute in (9) for x to find the measurements of the two angles.
   Angle 1: 3x
                 3(9)
                 27

   Angle 2: 7x
                  7(9)
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You can also check your work.
27 + 63 = 90
8 0
3 years ago
Help pls i need this done asap ty
zhuklara [117]

Answer:

b) 7.89*10^4

c) 3.15*10^3

Step-by-step explanation:

2-42)

the coefficient in scientific notation (the number that is not 10^x) has to be greater or equal to 1 and less than 10. so c and b are incorrect.

b) 0.789*10^5

c) 31.5*10^2

b) 0.789*10^5

in order to make 0.789 greater than 1, I would just multiply it by 10. shown below

=0.789*10*10*10*10*10

=7.89*10*10*10*10

=7.89*10^4

c) 31.5*10^2

same concept but this time divide by 10 to make 3.15 which will add another *10 to the exponent

=31.5*10*10

=3.15*10*10*10

=3.15*10^3

6 0
3 years ago
Read 2 more answers
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motikmotik

Answer:

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Eduard a obtenu 400 votes

Robert a obtenu 133 votes

Step-by-step explanation:comme les gens son 4 on divise par 4 ×100

36÷4×100⇒900

32÷4×100⇒800

24÷4×100⇒400

8÷4×100⇒133.3333

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