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2 years ago

7

A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 11 inches, a width of 3 inches, and a

height of 4 1/2 inches. What is the surface area?

1 answer:

iragen [17]2 years ago

7 0

Area = 1/2((11+3)×4.5) = 31.5 inch squared

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Write the frost ten terms of a sequence whose first term is -10 and whose common difference is -2

Temka [501]

Answer:

$-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...$

Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, called the common difference

The formula for an Arithmetic Sequence is equal to

$a_n=a_1+(n-1)d$

where

d is the common difference

n is the number of terms

a_1 is the first term of the sequence

In this problem we have

$a_1=-10\\d=-2$

substitute

$a_n=-10+(n-1)(-2)$

$a_n=-10-2n+2$

$a_n=-2n-8$

so

<u><em>Find the first ten terms</em></u>

$a_1=-10$

For n=2 ----> $a_2=-2(2)-8=-12$

For n=3 ----> $a_3=-2(3)-8=-14$

For n=4 ----> $a_4=-2(4)-8=-16$

For n=5 ----> $a_5=-2(5)-8=-18$

For n=6 ----> $a_6=-2(6)-8=-20$

For n=7 ----> $a_7=-2(7)-8=-22$

For n=8 ----> $a_8=-2(8)-8=-24$

For n=9 ----> $a_9=-2(9)-8=-26$

For n=10 ----> $a_1_0=-2(10)-8=-28$

The sequence is

$-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...$

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.......................hi I'm board

konstantin123 [22]

Answer:

yes

Step-by-step explanation:

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3 years ago

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Changes in Mean

egoroff_w [7]

It decreases by 0.5
The original mean was 5.5
The new mean is 5

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3 years ago

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Janet and Kyle each purchase Blu Ray discs and Cd's from Amazon. Janet buys 3 Blu ray and 2 Cd's for $58. Kyle buys 1 Blu Ray an

polet [3.4K]

Answer:

y = 20 x = 6

Step-by-step explanation:

1 (3x+ 2y = 58 ------------> -3x + -2y = -58

1x + 2y = 46 --------------> 1x + 2y = 46

____________

-2x = -12

-----------------

-2x -2x

x = 6

3(6) + 2y = 58

18 + 2y = 58

-18 -18

------------------

2y = 40

----- -----

2y 2y

y = 20

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2 years ago