3 years ago

3 + 2 (100 + 5 to the forth power - 1 what is the first step in solving this expression

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

4 0

You do the ones in parentheses first

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What is (2+y)³ written out?

Aleksandr-060686 [28]

${ \left( 2+y \right) }^{ 3 }\\ \\ =\left( 2+y \right) \left( 2+y \right) \left( 2+y \right) \\ \\ =\left( 2+y \right) \left( 4+4y+{ y }^{ 2 } \right)$

$\\ \\ =2\left( 4+4y+{ y }^{ 2 } \right) +y\left( 4+4y+{ y }^{ 2 } \right) \\ \\ =8+8y+2{ y }^{ 2 }+4y+4{ y }^{ 2 }+{ y }^{ 3 }\\ \\ ={ y }^{ 3 }+6{ y }^{ 2 }+12y+8$

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3 years ago

The sides of a triangle are in the ratio of 1:2:2 and the perimeter of the triangle is 15 feet. The length of the shortest side

Nataly_w [17]

Attached the solution and work.

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3 years ago

Sheronda travels around the world for her job. She traveled 1,356 miles last year. This year, her plans will require her to trav

Gala2k [10]

Answer:

24408

Step-by-step explanation:

Multiply every number by 8, then multiply every number by 10.

6 0

2 years ago

Read 2 more answers

Determine the relationship between the number of desks in the classroom and

mash [69]

30 + 8 = 38 desks

38 x 4 = 152 legs

If you did not add those eight desks then you will have 120 legs.

So, the amount of legs will go up by 32 if you add 8 more desks.

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3 years ago

Lee watches TV for 2 hours per day. During that time, the TV consumes 150 watts per hour. Electricity costs (15 cents)/(1 kilowa

shutvik [7]

So electricity costs 15cents every 1,000 watts used, and if he watches tv for 2hrs every day for a month that’s 60 hours (2*30) And every hour he watches tv it’s 150 watts. They want you to do the 60 hrs times 150watts which is 9,000 (amount of watts he uses in the month) and remember 1,000 watts is 15cents

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3 years ago