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lesya692 [45]
3 years ago
12

Which of these are mathematical laws that help us solve numerical problems? decimals graphs formulas percentages fractions

Mathematics
2 answers:
ladessa [460]3 years ago
6 0
Formulas are mathematical laws that help us solve problems.

Decimals are a type of number; graphs are displays of data; percentages are comparisons of a number to 100; and fractions are a type of number.
photoshop1234 [79]3 years ago
5 0

Answer:

The mathematical laws that help us to solve numerical problems are:

Formulas.

Step-by-step explanation:

<u>Decimals--</u>

The decimals is just a numeral system which is used to represent an integer or an non-integer value.

<u>Graphs--</u>

The graphs are just a visual display of the data values  in the coordinate plane.

<u>Formulas--</u>

It is just a mathematical rule that is expressed in numerals or some other symbols and is used to solve a numerical problem.

<u>Percentage--</u>

In mathematics, a percentage is a number or a ratio expressed as a fraction of 100.

<u>Fractions--</u>

A fraction represent a part of something as a whole.

for example--

If a spinner has four sections of equal parts with different colors,.

Then the fraction of one part of the spinner is:

1/4

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What numbers multiply to give me 12 but add to give me -7
romanna [79]

Answer:

-4 and -3

A negative times a negative results to a positive number, but when two negative numbers are added to each other, it still results to a negative number.

Hope I helped!

5 0
3 years ago
Read 2 more answers
2x-7=117 what is the value of x
Tcecarenko [31]

2x - 7 = 117

Add 7 to both sides

7 + 2x - 7 = 117 + 7

At the left hand side 7 will cancel 7

At the right hand side 7 will add up

2x = 124

Divide through by 2

x =  \frac{124}{2}

simplify the fraction

x = 62

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3 years ago
The graphs below have the same shape. What is the equation of the red<br> graph?
Alekssandra [29.7K]
Where are the graphs??? How’re we supposed to send you the answers?
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3 years ago
The data to the right represent the weights​ (in grams) of a random sample of 50 candies. Complete parts​ (a) through​ (f). 0.92
Inessa05 [86]

Answer:

0.069

Step-by-step explanation:

The given data set is

0.92, 0.87, 0.88, 0.82, 0.82, 0.87, 0.97, 0.86, 0.89, 0.84, 0.81, 0.88, 0.77, 0.86, 0.93, 0.84, 0.72, 0.82, 0.74, 0.83, 0.93, 0.75, 0.79, 0.91, 0.84, 0.91, 0.88, 0.88, 0.83, 0.78, 0.99, 0.81, 0.78, 0.75, 0.82, 0.76, 0.82, 0.87, 0.91, 0.77, 0.72, 0.94, 0.71, 0.73, 0.81, 0.81, 0.86, 0.93, 0.93, 0.82.

Formula for mean:

Mean=\frac{\sum x}{n}

Sum of all terms = 41.98

Mean of the data set is

Mean=\frac{41.98}{50}

Mean=0.8396

Formula for standard deviation for population:

\sigma=\sqrt{\frac{\sum (x-\overline{x})^2}{n}}

Formula for standard deviation for sample:

\sigma=\sqrt{\frac{\sum (x-\overline{x})^2}{n-1}}

\sigma=\sqrt{\frac{0.231792}{50-1}}

\sigma=\sqrt{0.004730449}

\sigma=0.06877826

\sigma\approx 0.069

Therefore, the standard deviation of the data set is 0.069.

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3 years ago
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