Question

I need help on these q's.

-The first term of an arithmetic series is 10 and the 7th term is 46, find the sum of the first 20 terms.

-The 8th term of an arithmetic series is 3 and the ninth term is -1, find the sum of the first 12 terms.

-The fifth term of an arithmetic series is 21 and the 11th term is 45, find the sum of the first 25 terms.

Please help.​

Answer 1

Explanation:

Rounded to the nearest hundredth thousandth, the number 0.00004369 is

Use Vocabulary in Writing Use vocabulary words to describe how to completely factor the expression 4x-5 + 16x-3, and write the factors using only p…ositive exponents.

Make x the subject of m=n+x/p

What is the measure of m<1

if m<5 =125, find m<1

Tommy has calculated the output for this function machine. Tommy's answer is incorrect. What mistake has he made? 8 squared 16​

The line L has equation y=2x+8 The line L crosses the x-axis at the point A. The line M is perpendicular to line L and passes through the point A a…) find the coordinates of the point A b) find the equation of the line M

This question is way too confusing for me... this is the picture for my other question because I couldn't edit it again so I will ask it again sorry. …Use the drawing tool(s) to form the correct answers on the provided number line. Plot all the solutions of the two equations on the number line provided.
`x^2=9/25\\y^3=8/125`

if m<2 = 32, find m<3

Evaluate the expression. Write your answer as a fraction or mixed number in simplest form. 1 1/4 divided by -3/2