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3 years ago

If each time is ROUNDED to the nearest tenth which student would have a time of 12.7? PLEASE HELP

Mathematics

1 answer:

igomit [66]3 years ago

3 0

Answer:

Colin

Explanation:

To rounds to the nearest tenth you look at the number after (in the hundredth's place) if it's below 5 you round down, if it's 5 or more you round up.

12.77 rounds to 12.8 because 7 is more than 5 so it rounds up.

12.63 rounds to 12.6 because 3 is less than 5 so it rounds down.

12.75 rounds to 12.8 because 5 is equal to 5 so it rounds up.

12.68 rounds to 12.7 because 8 is more than 5 so it rounds up.

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A right triangle, one exterior angle is 155°, what is measure of non adjacent, non right angle?

mina [271]

The measure of the non adjacent angle would be 125

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4 years ago

find the area of a triangular shaped land having the length of three sides 20,34 M and 42 respectively in metre square Anna and

matrenka [14]

Step-by-step explanation:

if I understand you correctly, then the 3 sides are

a = 20 m

b = 34 m

c = 42 m

under this assumption the best is to use Heron's Formula to get the area :

s = (a + b + c)/2

area = sqrt(s(s - a)(s - b)(s - c))

in our case

s = (20 + 34 + 42)/2 = 96/2 = 48

area = sqrt(48(48-20)(48-34)(48-42)) =

= sqrt(48×28×14×6) = sqrt(112,896) =

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8 0

2 years ago

Read 2 more answers

Plz help me thx<br><br>Simplify pt2:

bearhunter [10]

Answer:

π - $\sqrt{17}$

Step-by-step explanation:

note that $\sqrt{x^2}$ = x

Given

$\sqrt{(\pi -\sqrt{17})^2 }$

= π - $\sqrt{17}$

8 0

3 years ago

Can someone solve this please ill give Brainly to who ever is first :)!

natima [27]

Answer:

465 in²

Step-by-step explanation:

square area: A = lw

triangle area: A = $\frac{1}{2}$ lw (or base x height)

$A_{square}$ = (15)(15) = 225

$A_{triangle}$ = $\frac{1}{2}$ (8)(15) = 60

There is one square and 4 triangles so...

225 + 4(60) = 465 in²

6 0

3 years ago

2. Follow the process used to simplify the expression. Tell if it was done correctly. If not, explain and correct the error by s

wariber [46]

Answer:

No, the simplification is not done correctly. When multiplying

$\frac{2}{3}\times-9$ we should get -6 instead of -9.

the correct answer is 12k-8

Step-by-step explanation:

We need to tell if process was done correctly. If not, explain and correct the error by showing your own work.

The steps given are:

$\frac{2}{3} (6k - 9) + 8k - 2\\=4k - 9 + 8k - 2\\=12k - 11$

No, the simplification is not done correctly. When multiplying

$\frac{2}{3}\times-9$ we should get -6 instead of -9.

Correcting the error:

$\frac{2}{3} (6k - 9) + 8k - 2\\=4k - 6 + 8k - 2\\=12k - 8$

So, the correct answer is 12k-8

5 0

3 years ago

If each time is ROUNDED to the nearest tenth which student would have a time of 12.7? PLEASE HELP​

If each time is ROUNDED to the nearest tenth which student would have a time of 12.7? PLEASE HELP