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saw5 [17]
1 year ago
11

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–

1 i) (21 5i)?
Mathematics
1 answer:
Naily [24]1 year ago
5 0

Answer:

C i think

Step-by-step explanation:

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Waht is 2t2 math fir math clas
Lelechka [254]
2+2 is 4 LOL you just gotta add 1+1+1+1
4 0
3 years ago
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Ben tiene 3 veces la edad de Daniel y es 4 años mayor que él.<br>¿Cuántos años tiene Ben?​
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Ben es 6, Daniel es 2

Step-by-step explanation:

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8 0
3 years ago
Find the value of n such that x2-10x+n is a perfect square trinomial.
mihalych1998 [28]
The answer is the last option (Option D), which is:

 D. 25

 The explanation is shown below:

 1. You have that:

 (a ± b)^2=a^2 <span>± 2ab + b^2

 2. The expression given in the problem is:

 </span><span>x^2-10x+n

 Where x^2=a and 2ab=10x

 2b=10
 b=10/2
 b=5

 3. Therefore, you have:

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7 0
3 years ago
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In the following equation, a and b are both integers.<br><br> a(3x-8)=b -18x
almond37 [142]
A = -6
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Hope this helps :)
3 0
3 years ago
in a triangle TRY measure angle R is 3 times measure angle T and measure angle Y is 15 more than measure angle T find the measur
r-ruslan [8.4K]

Answer:

Angle R is 99 degree

Angle Y=48 degrees

Angle T is 33 degrees

Step-by-step explanation:

Let angle T be x

Angle R will be 3x

Angle Y will be x+15

Total=x+3x+x+15=5x+15

5x+15=180

5x=165

x=165/5=33

Therefore, angle T is 33 degrees, angle Y=15+33=48 degrees and angle R=33*3=99 degrees

5 0
2 years ago
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