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4 years ago

Subtract. 8- (-5) i cant find the answer to this

Mathematics

2 answers:

stepladder [879]4 years ago

5 0

Answer

Step-by-step explanation:

Whenever you have a - - it becomes a +.

So 8 - (-5) becomes 8+5

Furkat [3]4 years ago

4 0

Answer:

Step-by-step explanation:

$8-(-5)=\\\\8+5=\\\\13$

Hope this helps.

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Answer:

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3 years ago

An older method of estimating body fat percentage was to measure a person's average density (total mass divided by total volume)

timofeeve [1]

If the density of the man is 1.0321 grams per cubic cm. Then the body fat percentage will be 28.59%.

<h3>What is a function?</h3>

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

An older method of estimating body fat percentage was to measure a person's average density (total mass divided by total volume) and apply a formula to convert it to a body fat percentage.

$\rm BF = \left (\dfrac{4.57}{p} - 4.142 \right) \times 100$

where BF = body fat and p = density in g/cm3 A man weighs 175 pounds.

A man weighs 175 pounds.

His total body volume is modeled by a cylinder with a height of 170 cm and a radius of 12 cm.

Then the density will be

$\rm p = \dfrac{175 \times 453.592}{\pi \times 12^2 \times 170}\\\\p = \dfrac{79378.7}{76906.19}\\\\p= 1.0321 \ g/cm^3$

Then the Body fat percentage will be

$\rm BF = \left (\dfrac{4.57}{1.0321} - 4.142 \right) \times 100 \\\\\\BF = 0.2859 \times 100\\\\\\BF = 28.59\%$

More about the function link is given below.

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2 years ago

Please help me I need the answer

IceJOKER [234]

Answer:

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3 years ago

At a graduation ceremony, some students earned bachelors in science degrees, some earned bachelors in arts degrees, and some stu

dedylja [7]

Answer:80students

Step-by-step explanation:

Using set notation concept,

n(U) be the total number of student = 200

n(AnS') be those that earned Bachelor in Art only= 120

n(A'nS) be those that earned Bachelor in Science only= 40

n(AnS) be students that earned both degrees.

Using the formulae below to calculate n(AnS) first;

n(AuS)=n(A'nS)+ n(AnS)+n(AnS')

200=40+n(AnS)+120

200=160+n(AnS)

n(AnS)=40

This shows that 40students earned bachelor in both degrees

Those that earned Bachelor in science degree will then be n(A'nS)+n(AnS) i.e 40+40 =80students.

NB: A' means complement of A(A not included)

'n' denote intersection and 'u' denote union.

7 0

4 years ago

A baseball accelerates at 127,145m/s2 when a batter applies 15,137N of force to it. What is the mass of the baseball?

prohojiy [21]

Answer:

mass = 0.12 kg

Step-by-step explanation:

Force = mass • acceleration

15 137 N = mass • 127 145 m/s/s

divide each side by 127 145 m/s/s

0.11905... kg = mass

rounded to 2 decimal places

0.12 kg = mass

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3 years ago