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2 years ago

(2x + 3) (3x + 4) it says to solve that in box method

Mathematics

1 answer:

rusak2 [61]2 years ago

5 0

X 2x 3
3x 6x^2 9x
4 8x 12

6x^2 + 17x + 12

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Find the 12th term of the geometric sequence 1, -4, 16,

Korvikt [17]

Answer:

a₁₂ = - 4194304

Step-by-step explanation:

the nth term of a geometric sequence is

$a_{n}$ = a₁ $(r)^{n-1}$

where a₁ is the first term and r the common ratio

here a₁ = 1 and r = $\frac{-4}{1}$ = - 4 , then

a₁₂ = 1 × $(-4)^{11}$ = - 4194304

8 0

2 years ago

Some number added to seventeen

Oksanka [162]

Answer:

x+17

Step-by-step explanation:

x + 17 is the answer

5 0

3 years ago

Can someone explain to me what this means, I can't quite understand it.

yarga [219]

Answer: 214 You added up all of those and devided the mean( all 4)

4 0

2 years ago

Select all that apply.

Sergeu [11.5K]

I got B and D, sorry if my answers are wrong!!

5 0

2 years ago

A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 points. How many problems of eac

Nat2105 [25]

Answer:

5 points question is 8

and 2 points questions is 30 !!

Step-by-step explanation:

Let the number of 5 points questions be x and number of the 2 points questions be y !!

Given :- The paper has 38 problems

i.e,

number of 5 points Q + number of 2point Q = 38

=> x + y = 38

=> x = 38 - y .... ( i )

And , The test worth 100 pts :-

There must be x number of Questions which carry 5 points and there must y number of questions which carries 2 points ( as assume above )

so, 5x + 2y = 100 .... ( ii )

Putting value of the x in ( ii )

5 ( 38 - y ) + 2y = 100

190 - 5y + 2y = 100

- 3y = - 90

y = 30

Putting value of y in ( i )

x = 38 - y

x = 38 - 30

x = 8

So, the Number of 5points Question is

x = 8

and , the number of 2 points questions is y = 30 !!

4 0

3 years ago