2 years ago

Hey there! Can I get some help please ? Thanks!

1 answer:

5 0

The surface area is the sum of area of all faces of the shape

For the first shape:
four areas of four triangles + area of the square base

A= 4 (0.5*16*17) + (16*16) = 800 in^2

For the second shape:
area of the lateral cone + area of the circle base
A = 3.14*3* (9+64)^0.5 + 3.14 * 9 = 108.75 in^2

Hope that helps

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Please select the best answer from the choices provided A B C D

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ANSWER

The correct answer is D.

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

EXPLANATION

The given expression is

$\sum_{n=1} ^{6} (n - 3)$

The symbol means summation.

So we need to substitute

$n=1,n=2,n=3,n=4,n=5, \:and\:n=6$

into the formula and add all to get,

$\sum_{n=1} ^{6} (n - 3) = (1 - 3) + (2 - 3) + (3- 3) + (4 - 3) + (5 - 3) + (6 - 3)$

We simplify to obtain,

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

The correct answer is D

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2 years ago

Read 2 more answers

What is 1/2 divided by 3/4

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Answer:

4/6=2/3

Step-by-step explanation:

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2 years ago

The graph of y= -x2+3x-2 is shown. The ZERO(S) of the function is/ are?

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