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3 years ago

Find the sum of the first 30 terms in the series: 2,4,8,16,...

Mathematics

1 answer:

MrMuchimi3 years ago

4 0

Answer:

930

Step-by-step explanation:

1) Once upon a time there was a bored kid in class who invented a super cool formula

This formula goes like this:

n(n+1)

where n= the sum of the first n numbers in a series

30(30+1)=30(31)=930

930

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Can someone help me please:)

MakcuM [25]

I think it’s c and don’t try and open it

8 0

3 years ago

Write the equation of the line that passes through each pair of points in slope-intercept form. This is worth 3 points. You have

LekaFEV [45]

(0,5)(3,-1)
slope = (-1 - 5) / (3 - 0) = -6/3 = -2

y = mx + b
slope(m) = -2
(use either of ur points...(0,5)...x = 0 and y = 5
now we sub and find b, the y int
5 = -2(0) + b
5 = b

so ur line is : y = -2x + 5

6 0

3 years ago

Read 2 more answers

Can anyone please explain? Need some help :)

DedPeter [7]

Answer:

93.5 square units

Step-by-step explanation:

Diameter of the Circle = 12 Units

Therefore:

Radius of the Circle = 12/2 =6 Units

Since the hexagon is regular, it consists of 6 equilateral triangles of side length 6 units.

Area of the Hexagon = 6 X Area of one equilateral triangle

Area of an equilateral triangle of side length s = $\dfrac{\sqrt{3} }{4}s^2$

Side Length, s=6 Units

$\text{Therefore, the area of one equilateral triangle =}\dfrac{\sqrt{3} }{4}\times 6^2\\\\=9\sqrt{3} $ square units$

Area of the Hexagon

$= 6 X 9\sqrt{3} \\=93.5$ square units (to the nearest tenth)$

7 0

3 years ago

The sum of a number and 17 is no less than 26

Eva8 [605]

I believe it would be as following:

x+7>12

Here, x represents the unknown number. The symbol for no less than is greater than.

5 0

3 years ago

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Need help pls ! 20points <br> no links

Elenna [48]

Answer:

Step-by-step explanation:

We need only identify the x- and y-coordinates of the point of intersection of these two graphs. That point is (-4, 2).

7 0

3 years ago