3 years ago

A company logo is made up of a square and three identical triangles.

Mathematics

1 answer:

aniked [119]3 years ago

6 0

Answer:

give me a minute to find the answer.

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3 years ago

Which of the following expressions correctly uses the properties of summations to represent

madam [21]

Answer:

Option C is correct.

$7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

Step-by-step explanation:

Given the expression: $\sum_{i=1}^{18} (7i^2+9)$

Using properties of summation:

$\sum_{i=1}^{n} (a+bi) =\sum_{i=1}^{n} a + \sum_{i=1}^{n} bi$

$\sum_{i=1}^{n} a = an$

Using properties of summation in the given expression we have;

$\sum_{i=1}^{18} (7i^2+9)$

= $\sum_{i=1}^{18} 7i^2 + \sum_{i=1}^{18} 9$

= $7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

Therefore, the following given expression uses the properties of summation to represents is, $7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

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3 years ago

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The quantity of soap produced in 2009 is 3000bars. if this is a 20% increase of what was produced in 2008.what is the quantity o

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2,400
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Marissa bought 3 movies for $9.99 each and 2 video games for $14.99 each. These prices included tax .she gives the cashier $70.0

oksian1 [2.3K]

Answer:

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Step-by-step explanation:

9.99+9.99+9.99+14.99+14.99

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