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valkas [14]
4 years ago
5

Simplify 7(x + 3). 7x + 3 7x + 10 7x + 21 x + 21

Mathematics
1 answer:
Evgesh-ka [11]4 years ago
6 0
The answer is 7x+21
Explanation: you have to distribute 7into c and three. So you would multiply 7 by x (or 1x) and 7 times 1 is 7 so it would be 7x and then you would multiply 7 times 3 which is 21 and there are no like terms with 7x and 21 so it’s just 7x+21
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0.127 divided by 0.63<br><br> Show all steps plz
ioda
1.)put it into a standard algorithm which would look like this.  
   
        00.20
0.63|12.70
       -0↓ ↓ ↓                                                                                         
        ---  ↓↓         12 ↓↓
        - 0 ↓↓
         ----↓↓
         127 ↓
        -126 ↓
        --------↓
              10
            -  0
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              10.      hope that helped
5 0
3 years ago
I need help with this please!
babunello [35]

Answer:

a!

Step-by-step explanation:

It's 3^6 because the negatives cancel out

4 0
3 years ago
Read 2 more answers
43. If L is the midpoint of KN an MP, which methods can be used to prove the triangles are congruent
quester [9]

Answer:

Step-by-step explanation:

Two triangles are said to be congruent if all their corresponding sides and corresponding angles are equal to each other.

Given that L is the midpoint of KN an MP, hence:

KL = LN; and ML = LN

Also, ∠KLM = ∠PLN (vertical opposite angles are congruent to each other)

Since ∠KLM = ∠PLN, KL = LN; and ML = LN, we can hence say that triangle KLM and triangle LNP are congruent triangles using Side-angle-side (SAS) triangle congruency theorem.

The SAS theorem states that if two sides and one included angle of one triangle is equal to two sides and an included angle of another triangle, then both triangle are congruent

8 0
3 years ago
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Jlenok [28]

Answer:

=> 216

Step-by-step explanation:

perimeter of the rectangular pool is

=> 2(l+b)

=> 2( 45.7 + 62.3 )

=> 2(108.0)

=> 216

3 0
3 years ago
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spayn [35]
H=3J
(1a)+(3a)=48
J. H.

J=12
H=36
5 0
3 years ago
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