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2 years ago

Simplify. 3(2x + 4y - 2z) + 7(x + y - 4z) A) 13x + 5y - 22z B) -x - 19y + 22z C) 13x + 19y - 34z D) -x - 5y + 34z

Mathematics

2 answers:

RUDIKE [14]2 years ago

6 0

The answer to this equation is C.

Korolek [52]2 years ago

4 0

Answer:

thx

Step-by-step explanation:

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Consider the sequence defined recursively by do = 0, an = an-1 + 3n – 1. a) Write out the first 5 terms of this sequence,

creativ13 [48]

Answer:

The first 5 terms of the sequence is 2,7,15,26,40.

Step-by-step explanation:

Given : Consider the sequence defined recursively by $a_0=0$ $a_n=a_{n-1}+3n-1$

To find : Write out the first 5 terms of this sequence ?

Solution :

$a_n=a_{n-1}+3n-1$ and $a_0=0$

The first five terms in the sequence is at n=1,2,3,4,5

For n=1,

$a_1=a_{1-1}+3(1)-1$

$a_1=a_{0}+3-1$

$a_1=0+2$

$a_1=2$

For n=2,

$a_2=a_{2-1}+3(2)-1$

$a_2=a_{1}+6-1$

$a_2=2+5$

$a_2=7$

For n=3,

$a_3=a_{3-1}+3(3)-1$

$a_3=a_{2}+9-1$

$a_3=7+8$

$a_3=15$

For n=4,

$a_4=a_{4-1}+3(4)-1$

$a_4=a_{3}+12-1$

$a_4=15+11$

$a_4=26$

For n=5,

$a_5=a_{5-1}+3(5)-1$

$a_5=a_{4}+15-1$

$a_5=26+14$

$a_5=40$

The first 5 terms of the sequence is 2,7,15,26,40.

5 0

2 years ago

Translate the phrase into a numerical expression of One hundred divided by the quantity three times five

dimulka [17.4K]

$\frac{100}{3*5}$

4 0

3 years ago

What is the solution to y=-x+3 and y=4x-2

DIA [1.3K]

Answer: x=1

y=2

Step-by-step explanation:

y=-x+3

y=4x-2

-----------

y=y

-x+3=4x-2

3+2=4x+x

5=5x

x=1

y=-1+3

y=2

3 0

3 years ago

The area of a triangle is 45.5 cm2 and the base is 10 cm.

blondinia [14]

The area of a triangle is A=1/2b*h
You have the base (b) and you have the area (A)
So, if you plug in what you know, you get this:
45.5=1/2*10*h
Simplify it:
45.5=5h

Now solve for h
Divide by 5 to get h alone:
9.1=h

Your height is 9.1cm
Hope this helps :)

3 0

2 years ago

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The table below shows the amount that must be repaid, y, when x dollars are borrowed. Amount Borrowed Amount Repaid $100 $135 $2

Marizza181 [45]

Answer:

Definitely not a

Step-by-step explanation:

On “edge” it’s not a. I got it wrong and I failed with a 60

8 0

3 years ago

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