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algol13
3 years ago
6

7 plus -2 times 3 square

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0
If 3 squared is 9 then 9 times -2 is -18 plus 7 is -11
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Need help with number 60
vampirchik [111]
You could write 42/20 for #60.
5 0
4 years ago
Evaluate the following |13-15|-|15|​
mafiozo [28]

Answer:

-13 is your answer.

Step-by-step explanation:

What you do is you first subtract the |13-15| to get |-2|. Since it is an absolute value it becomes a 2.

2-15=-13 which is your answer.

6 0
3 years ago
What is the solution set for 9x2-25=0
Alexandra [31]

Answer: i hope i helped if not im truly sorry

Solving for 9x^2 - 25 = 0

Standard form:

9x2 − 25 = 0

Solutions based on quadratic formula:

x1  

= −0 − √ 02 − 4×9×(−25)  

2×9

= 0 − 30 × √ 1  

18

≈ −1.667

x2  

= −0 + √ 02 − 4×9×(−25)  

2×9

= 0 + 30 × √ 1  

18

≈ 1.667

Extrema:

Min = (0, −25)

Step-by-step explanation: im not dumb and im not smart

4 0
3 years ago
Simplify the following expression:
jasenka [17]

The simplified form of this expression is <u>28 + 10i </u>

<h3>This question is an expression of imaginary numbers</h3>

Imaginary numbers are numbers that are composed of a real number and an imaginary part.

< To resolve this issue, let's remove the first parenthesis:

(3i + 4) - i + 4(6 + 2i)

3i + 4 - i + 4(6 + 2i)

< In the second parentheses, let's apply the distributive property:

3i + 4 - i + 4(6 + 2i)

3i + 4 - i + 4 . 6 + 4 . 2i

3i + 4 - i + 24 + 8i

< Finally, let's just sum the like terms, along with the real terms:

3i + 4 - i + 24 + 8i

10i + 4 + 24

10i + 28

<u>28 + 10i</u>

Therefore, the correct value will be <u>28 + 10i</u>

4 0
2 years ago
HELP PLEASE<br> A. 51.4<br> B. 50.0<br> C. 31.0<br> D. 39.5<br> E. None
Liono4ka [1.6K]
First, in order to find the length of side w, you must first find the angle W. 
A triangle must be 180 degrees in total. 93 + 37 makes the triangle only have 130 at the moment. 
180 - 130 = 50
So angle W is 50 degrees
Now using this, we can use law of sines.
\frac{w}{sin50} =  \frac{31}{sin37}
Now multiply sin 50 on both sides. It can be written like so:
\frac{31sin50}{sin37}
Now plug this in a calculator. 
Answer is 39.5 



8 0
4 years ago
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