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3 years ago

Please help me I’ll give u brainliest

Mathematics

1 answer:

cupoosta [38]3 years ago

3 0

Answer:

its the last one

Step-by-step explanation:

because the percent you have to turn it in to a decimal.

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A. isolating the x² term and finding the square root of both sides

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Gloria bought each of her three younger siblings a movie ticket find total cost of a movie ticket if each ticket cost $9.75 just

adell [148]

$29.25 because since each ticket costs $9.75 for three kids, then in total it will be $29.95

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4 years ago

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In a primary school class, the ratio of boys to girls is 3:4. If there are 12 girls in the class, what is the total number of st

AfilCa [17]

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Step-by-step explanation:

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How is the sum expressed in sigma notation? 11 + 17 + 23 + 29 + 35 + 41

Ann [662]

<h3>The sum expressed in sigma notation is:</h3>

$11+17+23+29+35+41=\sum\limits_{i=1}^{6}5+6i$

Solution:

Given that,

11 + 17 + 23 + 29 + 35 + 41

We have to express the sum in sigma notation

Analyse the series

5 + 6(1) = 11

5 + 6(2) = 17

5 + 6(3) = 5 + 18 = 23

5 + 6(4) = 5 + 24 = 29

5 + 6(5) = 5 + 30 = 35

5 + 6(6) = 5 + 36 = 41

Thus the series goes on like this:

5 + 6(n) , where n = 1 to 6

This can be expressed in sigma notation as:

$11+17+23+29+35+41=\sum\limits_{n=1}^{6}5+6n$

We can expand the sigma notation and verify the results

$\sum\limits_{i=1}^{6}5+6i=(5+6(1))+(5+6(2))+(5+6(3))+(5+6(4))+(5+6(5))+(5+6(6))\\\\\\\sum\limits_{i=1}^{6}5+6i=(5+6)+(5+12)+(5+18)+(5+24)+(5+30)+(5+36)\\\\\\\sum\limits_{i=1}^{6}5+6i=11+17+23+29+35+41$

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3 years ago

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What is 25 percent of 225

enyata [817]

If you would like to know what is 25 percent of 225, you can calculate this using the following steps:

25 percent of 225 = 25% * 225 = 25/100 * 225 = 56.25

Result: 25 percent of 225 is 56.25.

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