a) S70 = 35(2(22) + 69(3)) b) S95 = 47.5(2(-17) + 94(5)) c) S777 = 388.5(2(3) + 776(6)) Learn the formula!

Find the arithmetic sequence. (answer)

a) S70 = 35(2(22) + 69(3)) b) S95 = 47.5(2(-17) + 94(5)) c) S777 = 388.5(2(3) + 776(6)) Learn the formula!

Some solid evidence exists for Norse colonies in Newfoundland in the 10th century.

Using the given information. w represents the width 3w + 4 represents the length 64 = 2(w + 3w + 4) Can you solve for w and answer?

(1 - 9, 3 - 3) (Did you try plotting the points?)

From a musicians view. The ratio of the string lengths is 2 : 3. (A perfect fifth.) Therefore the ratio of frequencies is 3 : 2 or 1.5

Continuous Growth and Decay (answer)

First, this is not a continuous growth problem. It is a linear with a constant rate of change. a12 = a1 + 11d a12 = 0.5 + 11(0.25) Can you complete?

Groups of families make up an order. Kingdom, Phylum, class, order, family, genus, species

1) draw an inverted isosceles triangle. 2) Label the bottom vertex "O." This is the center of the pool 3) Label the upper right vertex A and the upper left vertex B. This is one side segment of the pool. 4) Label OA 150", the diameter of the pool 5) Extend OA a little...

Multiples of 2/3 (answer)

... -6/3, -4/3, -2/3, 0/3, 2/3, 4/3, 6/3 ...

Stuck on number 2 (answer)

60° would be the interior angle. θ < 120°

Leaseing a car vs. buying (answer)

Lease for 3 years: 1000 + 150(36), $6,400 Buy: 22,000 - 13,000 = $9,000

A. once B. 1 + √3 C. The graph is raised 3 units. The coaster does not reach the ground.

t/80 + t/60 = 1 LCD? try 240. Can you solve now and answer?

Does a geologist study ancient life (answer)

Geology has to do with the physical structure of the earth (geo in Greek), its substances, history, and forces that act upon it. Not much about living things.

1/3 = 100 / 300 87/100 = 261 / 300 100/300 < x < 261/300

Working backward (answer)

As you say, working backwards: Before C Brad had 2 php (what's a php?) Before B Brad had 4 php Before A brad had 8 php Check Before A 8, spend 4 Before B 4, spend 2 Before C 2, spend 1 One left over

In Aesop's fables the olive tree boasts that it keeps it's leave throughout the year while the fig tree becomes naked in the winter. The olive tree is hit by lightening and consumed. Moral: boasting can lead to unexpected disaster. Aphthonius has a version in which the olive tree is...

3 and 1/2

Geometric Sequence (answer)

an = (2an-1)(-1)n-1 So what is b and c?

A ratio problem (answer)

3x + x + 2x = 300 6x = 300 x = 50 150 : 50 : 100 Considering the ration given fours spots being twice two spots is impossible.