MATHEMATICS MIDDLE SCHOOL

The explicit formula for a sequence isan= −2 + 3/2 (n − 1)

What is the 21st term of the sequence?

Answers

Answer 1
Answer:

Answer:

28

Step-by-step explanation:

Let n = 21, and evaluate the expression.

a_n = -2 + (3)/(2)(n - 1)

a_(21) = -2 + (3)/(2)(21 - 1)

a_(21) = -2 + (3)/(2)(20)

a_(21) = -2 + (3)/(1)(10)

a_(21) = -2 + 30

a_(21) = 28

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What is the least amount of acute angles a triangle can have?

Answers


A triangle can have one, or two, or three acute angles.
It must have at least one of them.
That's the least.

-3y4-5y3+17y2+9y+1/0.5y2

Answers

Answer:

If you are combining like terms your answer will be -3y^4-5y^3+19y^2+9y

Step-by-step explanation:

Whats 600*50000+60 to this math problem

Answers


Let's see -

Wow! You'll be surprised to see how big your answer will be!

600 × 50,000 = 30,000,000

30,000,000 + 60 = 30,000,060

Final answer -

30,000,060

WOW! Big, right? :)

↑   ↑   ↑  Hope this helps! :D

find three consecutive integers such that the sum of the first and twice the second is equal to the third plus four​

Answers

Answer:

The three consecutive integers are 2,3,4

Step-by-step explanation:

Let the three consecutive integers be represented as x,x+1,x+2

As per the given condition, the sum of the first and twice the second integer is equal to the third integer plus 4.

Representing it in the form of an equation:

x + 2*(x+1) = (x+2) + 4

=> x + 2x + 2 = x+6

=> 3x + 2 = x + 6

=> (3x -x) = 6 - 2

=> 2x = 4

=> x = 4/2 = 2

So the three integers are 2,3,4

Verification: 2 + 2*3 = 8

                    4 + 4 = 8

So the requirement is satisfied by these integers.

Ax+By=C form help...

Answers

Answer:

4x-y= -18

Step-by-step explanation:

y-1=4(x+4)

y-1=4x+16

4x-y=-1-17

4x-y=-18

where A=4 B=-1 and C=-18

Answer:

4x + y = -15

Step-by-step explanation:

y - 1 = -4(x+4)

y - 1 = -4x - 16

y = -4x - 16 + 1

y = -4x - 15

4x + y = -15

Please help! Would you describe the associations in this table as… (pick two)Linear? Negative? Nonlinear? Positive?



I know it would be nonlinear because neither Variable X OR Y have a constant rate of change.
Unfortunately, I don't know whether it is positive or negative.

Answers

i would say negative
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