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3 years ago

Approximate √80 by using perfect squares. 80 is between which two perfect squares.

Mathematics

1 answer:

Zarrin [17]3 years ago

5 0

Answer:

8.94

Step-by-step explanation:

√ 80 is between perfect squares √64 and √81

or between 8 abd 9.

the approximate value is 8 + (80-64)/(81-64) =

8 + 16/17 = 8 + 0.94 = 8.94

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Mia can run at a rate of 360 feet per minute. Approximately how many minutes would she take to run a 500-yard stretch of road an

tankabanditka [31]

Step-by-step explanation:

since we know, she can run 360 ft per minute, and we want to know how many minutes she would need to run 500 yards we need to find out how often 360 ft fit into 500 yards.

so,

500 yards / 360 ft

how can we make this division ?

help is given to us by taking us that 1 yard = 3 ft.

aha !

so, 500 yards = 500×3 ft = 1500 ft

therefore, our task now looks like

1500 ft / 360 ft

and this we understand and can do, right ?

1500 / 360 = 150/36 = 75/18 = 4 3/18 = 4 1/6 minutes

the closest answer option is therefore 4.2, meaning she would take about 4.2 minutes to run 500 yards.

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3 years ago

If I have 7 button down shirts, 5 pairs of pants and 3 pairs of shoes that I can wear to work then how many different outfits ca

34kurt

105 different outfits can wear on an individual day

<em><u>Solution:</u></em>

I have 7 button down shirts, 5 pairs of pants and 3 pairs of shoes that I can wear to work

To find: Number of different outfits can I wear on an individual day

First he has to decide on a pair of pants and he has 5 different choices

For each of those choices he has a choice of 7 different button down shirts, so that gives him 5 x 7 = 35 different pant/shirt combinations

For each of those 35 different pant/shirt combinations, he has 3 pairs of shoes he could select, so altogether he has 35 x 3 = 105 different outfits

In short we can say,

different outfits = 7 x 5 x 3 = 105

So there 105 different outfits can wear on an individual day

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3 years ago

Chris is buying a new I-phone at the discount of 10%. The original price is $399.99. How much money will he pay for his new phon

kodGreya [7K]

Answer:

chris needs to pay 10% off that amount (aka the orignal amount)

Step-by-step explanation:

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3 years ago

What is the inverse of f(x)=(x+6)2 for x≥–6 where function g is the inverse of function f? g(x)=x√−6, x≥0 g(x)=x−6−−−−√, x≥6 g(x

rosijanka [135]

Answer:

$g(x)=\sqrt{x}-6$ , x>=0

Step-by-step explanation:

$f(x)=(x+6)^2$

To find the inverse function , replace f(x) by y

$y=(x+6)^2$

Replace x with y and y with x

$x=(y+6)^2$

Solve the equation for y

take square root on both sides

$+\sqrt{x} =y+6$

Now subtract 6 from both sides

$+\sqrt{x}-6=y$

replace y with g(x)

$g(x)=\sqrt{x}-6$

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3 years ago

Three consecutive integers add up to 30. Which integers are they?

noname [10]

Answer:

30 31 33 are the three integer consective

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2 years ago

Approximate √80 by using perfect squares. 80 is between which two perfect squares.​

Approximate √80 by using perfect squares. 80 is between which two perfect squares.