All categories

3 years ago

Why must a measurement include a number and a unit

Mathematics

1 answer:

Jlenok [28]3 years ago

7 0

Answer:

Hey ! A measurement must include both a number and a unit because a number is meaningless without a unit; a unit describes what the number is measuring.The number specifies the finite value and the unit specifies the increment and describes what is being measured (length, weight, force, etc)..

hope this helps

You might be interested in

Can I get some help on these please

Tema [17]

Calculate y-values by inserting x-values.

6 0

4 years ago

Read 2 more answers

The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is y + 7 = (x – 10). What is the stan

Crank

Answer:

Step-by-step explanation:

We are given coordinates of the line passed through (–5, –1) and (10, –7) .

Applying slope formula,

$Slope=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-5,\:-1\right),\:\left(x_2,\:y_2\right)=\left(10,\:-7\right)$

Therefore,

$m=\frac{-7-\left(-1\right)}{10-\left(-5\right)}$

$m=-\frac{2}{5}$

Therefore, slope is $m=-\frac{2}{5}$ .

Applying point-slope form $y-y_1=m(x-x_1),$ we get

$y+7 = -\frac{2}{5}(x-10)$

$y+7=-\frac{2}{5}(x-10)$

On multiplying both sides by 5, we get

$5(y+7)=5\times-\frac{2}{5}(x+1)$

5y+35=-2(x-10)

5y+35=-2x+20

Adding 2x on both sides, we get

5y+25+2x=-2x+20+2x

2x+5y+35=20

Subtracting 35 from both sides, we get

2x+5y+35-35=20-35

2x+5y=-15.

Therefore, required equation is :

6 0

3 years ago

Consider the following system of equations, <br> −2x−9y=12−2x−7y=8 <br> The value of x is

joja [24]

The value of x is 23 and the value of y is -6

x = 23

y = -6

You're welcome.

6 0

3 years ago

Jessica was sitting in row 9, seat 3 at a soccer game when she discovered her ticket was for row 1, seat 1. Write a rule to desc

Westkost [7]

rule is to shift 8 units left & , shift 2 units down , Correct option C) T<-8,-2> (Jessica) ,

<u>Step-by-step explanation:</u>

Here we have , Jessica was sitting in row 9, seat 3 at a soccer game when she discovered her ticket was for row 1, seat 1. We need to Write a rule to describe the translation needed to put her in the proper seat. Let's do this:

Suppose the above problem in coordinate system where we have a point $P(9,3)$ , And we need to write rule for translation of this point to $Q(1,1)$ .