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Vlada [557]
3 years ago
13

If a = 8 and b = 4, then b(b+ a) - b = A. 12 B. 20 C. 44 D. 52

Mathematics
2 answers:
Gemiola [76]3 years ago
6 0
C. 44 is the answer 4(4+8)-4=44
inna [77]3 years ago
6 0
Simple!
Okay first plug in the variables given to you.
4(4+8)-4=? Now lets solve.
First, in order to get rid of the paranthesis, multiply 4 by the numbers inside, which in this case are 4 and 8.
That will give us...
16+32-4. Now, remember PEMDAS?
Addition (A) comes before subtraction (S).
So lets add 16 and 32.
Thats 48.
Now 48-4= 44.
44 is our final answer (: so C
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ivanzaharov [21]

Answer:

An equation for the nth term of the arithmetic sequence.

a_n=3n-1

Step-by-step explanation:

Given the sequence

2,5,8,11,...

An arithmetic sequence has a constant difference 'd' and is defined by  

a_n=a_1+\left(n-1\right)d

here

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computing the differences of all the adjacent terms

  • d = 5-2 = 3, d = 8-5=3, d=11-8=3

Using the nth term formula

a_n=a_1+\left(n-1\right)d

substituting a₁ = 2, d = 3

a_n=2+\left(n-1\right)3

     =2+3n-3

     =3n-1

Thus, an equation for the nth term of the arithmetic sequence.

a_n=3n-1

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3 years ago
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60
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Harrizon [31]
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gulaghasi [49]
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nikdorinn [45]

Answer:

False

Step-by-step explanation:

If we were to flip the solid on the left so its parallel to the solid on the right, we would be able to compare the two more easier.

We can see that the right solid has dimensions of:

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W = 3 cm

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The left solid has dimensions of:

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If we were to add these all up, they would not equal.

R: 1 + 3 + 5 = 9

L: 1 + 2 + 7 = 10

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3 years ago
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