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malfutka [58]
3 years ago
14

Item 10

Mathematics
1 answer:
vfiekz [6]3 years ago
5 0

Answer:

21 Students

Step-by-step explanation:

140 x .15 = 21

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Tell which set or sets the number below belongs​ to: natural​ numbers, whole​ numbers, integers, rational​ numbers, irrational​
Alexus [3.1K]

Answer:

<h3>Rational numbers</h3>

Step-by-step explanation:

A rational number is a number that can be written as a ratio of two integers. The are expressed as fractions. Given the value 8/9, this value is a fraction and is written as a ratio of two integers 8 and 9.

The value is neither a real number, nor an integer because integers and whole numbers are not expressed as fractions.

Natural numbers are also whole numbers starting from 1 and above. Hence 8/9 is not a natural number as well.

Note that irrational numbers are also classified as real numbers and they can not be written as a ratio of two integers.

Conclusively, 8/9 is only classified as a rational number

6 0
2 years ago
Please help I was supposed to do this yesterday <br><br> If x=-4 and y= 9/2
tekilochka [14]

Answer:

1/6(3x^{2}+4y)

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AD = 12
Dmitry [639]

Answer:

x = 6

Step-by-step explanation:

let 'x' = BD

x/3 = 12/x

x² = 36

x = \sqrt{36}

x = 6

5 0
3 years ago
Hemanta bought a pen of Rs 75 and sold it at a profit of Rs 3.80. What is the selling price of the pen?
Brilliant_brown [7]

Answer:

78.80

Step-by-step explanation:

just add the two values

4 0
2 years ago
Compare the line passing through the points (–2, –9) and (4, 6) to the line given by the equation y = 25x – 4.
elena-s [515]

Answer:

D. They have the same y-intercep

Step-by-step explanation:

Before the comparison will be efficient, let's determine the equation of the two points and the x intercept .

(–2, –9) and (4, 6)

Gradient= (6--9)/(4--2)

Gradient= (6+9)/(4+2)

Gradient= 15/6

Gradient= 5/2

Choosing (–2, –9)

The equation of the line

(Y+9)= 5/2(x+2)

2(y+9)= 5(x+2)

2y +18 = 5x +10

2y =5x -8

Y= 5/2x -4

Choosing (4, 6)

The equation of line

(Y-6)= 5/2(x-4)

2(y-6) = 5(x-4)

2y -12 = 5x -20

2y = 5x-8

Y= 5/2x -4

From the above solution it's clear that the only thing the both equation have in common to the given equation is -4 which is the y intercept

4 0
3 years ago
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