MATHEMATICS HIGH SCHOOL

What is the 25th term of this arithmetic sequence? 3, 9, 15, 21, 27, …

Answers

Answer 1

Answer:

Answer: 147

Step-by-step explanation:

The given arithmetic sequence : 3, 9, 15, 21, 27, ….....................

From the above sequence, it can be seen that the first term $a= 3$

The common difference = $d=9-15=21-15=6$

We know that in arithmetic sequence, the nth term is given by :-

$a_n=a+d(n-1)$

Then for, n=25, the 25th term will be :-

$a_(25)=3+6(25-1)\n\n\Rightarrow\ a_(25)=147$

Answer 2

Answer: 3, 9, 15, 21, 27,…
+6 +6 +6 +6

a(n) = a₁ + d(n - 1)
a(n) = 3 + 6(n - 1)
a(n) = 3 + 6(n) - 6(1)
a(n) = 3 + 6n - 6
a(n) = 6n + 3 - 6
a(n) = 6n - 3

a(n) = 6n - 3
a(25) = 6(25) - 3
a(25) = 150 - 3
a(25) = 147

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Which of these numbers below are exactly divisible by nine 107, 513, 944, 126, 802

Answers

513 and 126. You have to divide 9 by all the numbers, if the number is even then it is divisible.

PLEASE HELP!!Solve this quadratic equation:

2x^2 + 8x = 0

This has TWO answers!

Thank you so much!!!

Answers

I hope this helps you

Y=8x+168
how do i get the x-intercept and
y-intercept to this equation?

Answers

The x intercept occurs when y=0, and the y intercept when x=0. Substitute these values into the equation to find the intercepts

The diagram below shows the construction of an equilateral triangle Which statement justifies this construction?

Answers

Answer:

Step-by-step explanation:

AB = AC = BC

In equilateral triangle, all the sides and angles are equal. Here the diagram is constructed using the sides.

Answer:

Step-by-step explanation:

I think number two because it is the direct line pattern of 3. If you look at the bend it would go AB,AC,BC.

Math help only 1 plz help

Answers

Answer:

b=24

Step-by-step explanation:

you use a^2+b^2=c^2

so 10^2+b^2=26^2

100+b^2=676

subtract 100 from both sides

b^2=576

then sq rt the 576 to get 24

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