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3 years ago

I have to find the surface area of a cereal box. (ohs cereal)

Mathematics

1 answer:

ladessa [460]3 years ago

5 0

Answer:

366 square inches

Step-by-step explanation:

Surface Area Formula:

A= 2( w*l + h*l + h*w)

So you substitute the numbers:

A= 2(3*9 + 13*9 + 13*3)

A= 2( 27+ 117 + 39)

A= 54+234+78

A= 366 square inches

There you go :)

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A: What are the solutions to the quadratic equation x^2+9=0?

Nataliya [291]

Answer:

Part A)

x=-3i

x=3i

Part B)

(x+3i)(x-3i)

Step-by-step explanation:

Given:

Part A)

x^2+9=0

x^2=-9

x= √-9

x=√-1 *√9

x=± i *3

x=±3i

Part B)

x^2+9=0

x^2 - (-9)=0

x2-(3i)^2=0

(x-3i)(x+3i)=0 !

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3 years ago

Mick dropped 2 pennies and he had 7 how many does he have left

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Answer:

Step-by-step explanation:

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Yesterday tram charged $70 to babysit for 5 hours

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Answer:

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Step-by-step explanation:

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3 years ago

Find a8 when a1= 9, d = 4 of the arithmetic sequence whose first term is a1 and common difference is d.

Gelneren [198K]

General Arithmetic Terms

$\displaystyle \large{a_n = a_1 + (n - 1)d}$

We want to find a8; we know:

a1 = 9
d = 4

Substitute in the formula.

$\displaystyle \large{a_n = 9 + (n - 1)4} \\ \displaystyle \large{a_n = 9 + 4n - 4} \\ \displaystyle \large{a_n = 4n + 5}$

To find a8, substitute n = 8

$\displaystyle \large{a_8= 4(8) + 5} \\ \displaystyle \large{a_8= 32 + 5} \\ \displaystyle \large{a_8= 37}$

Hence, the 8th term of sequence is 37

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3 years ago

Here is the histogram of a data distribution. All class widths are 1.

Pachacha [2.7K]

The correct answer is option B which is 3

Mean is defined as the ratio of the sum of the number of the data sets to the total number of the data.

Given data:-

4,3,2

The mean will be calculated as:-

Mean = (4 + 3 + 2) / 3

Mean = 9 / 3

Mean = 3

Therefore the correct answer is option B which is 3

To know more about mean follow

brainly.com/question/968894

#SPJ1

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2 years ago