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Luden [163]
3 years ago
7

Convert the following as a. 2 hours to second​

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

1. First convert hrs into min by multiplying 60

= 2 *60=120min

2. Then multiply 60 in 120 to convert it into seconds

120*60=7200 sec

<h2>MARK AS BRANLIEST.</h2>

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Always because the sum of x and y is 180 degrees. If x and y are right angles, then x and y are supplementary angles. Never because the sum of x and y has to be 90 degrees. If x and y are complementary angles, then y is a right angle.
4 0
3 years ago
Round the number 2.72603 to 2 decimal places
svetlana [45]

Answer:

2.73

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3 0
3 years ago
Help please
melamori03 [73]

Hey There!

Answer:

D. 28

Explanation:

So all you have to do in your answer is evaluate:

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3 0
3 years ago
Read 2 more answers
The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute. a 2-row table with 10
olga nikolaevna [1]

According to the line of best fit, the value of time when the temperature reach 100°c, the boiling point of water is 5.

<h3>What is linear regression?</h3>

Linear regression is a type of regression which is used to model the statement in which the growth or decay initially with constant rate, and then slow down with respect to time.

The table shows the temperature of an amount of water set on a stove to boil, recorded every half minute. a 2-row table with 10 columns.

  • Time (minutes X)                 0, 0.5,1.0, 1.5, 2.0,2.5,3.0, 3.5, 4,  4.5.
  • Temperature (° Celsius Y)  75, 79, 83, 86, 89, 91, 93,  94, 95, 95.5.

The sum of time is 22.5 and the sum of temperature value is 880.5. In this table,

  • The mean of time value, 2.25.
  • The mean of temperature value 88.05
  • Sum of squares 20.625
  • Sum of products 93.625

The regression equation for this data can be given as,

\hat y=4.53939 X+77.83636

Put the value of temperature (y) 100 in this equation.

100=4.53939 X+77.83636\\X=\dfrac{100-77.83636}{4.53939}\\X\approx 5

Hence, according to the line of best fit, the value of time when the temperature reach 100°c, the boiling point of water is 5.

Learn more about the regression here;

brainly.com/question/25226042

4 0
2 years ago
$10.4856round to the nearest cent
alexgriva [62]
10.49 (5 or more round up)
8 0
3 years ago
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