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3 years ago

How do I know if a table is proportional

Mathematics

1 answer:

Katen [24]3 years ago

8 0

Answer:

Try to find the value for B/A if the value of B/A is the same for each pair of numbers

Step-by-step explanation:

Steps to determine if two quantities in a table are proportional to each other: For each given measure of Quantity A and Quantity B, find the value of B/A If the value of B/A is the same for each pair of numbers, then the quantities are proportional to each other.

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Please help I need this immediately

svetlana [45]

Answer:

The choose B. x = 7 , x = – 15

(x+4)-5=6

x +4-5=6 —> x=6-4+5 —> x= 7

– (x+4)-5=6 —> -x -4-5=6—> x = -4 -5 -6 —> x = – 15

I hope I helped you^_^

8 0

3 years ago

Which numerical setup can be used to calculate the heat energy required to completely melt 100 grams?

BaLLatris [955]

Answer:

Multiplying the mass of ice by the specific latent heat of fusion of ice

Step-by-step explanation:

The heat energy required to completely melt 100 grams can be calculated by multiplying the mass of ice (100g) by the specific latent heat of fusion of ice (336J/g)

5 0

3 years ago

The product of some negative number and 5 less than three times that number is 12. Find the number.

miv72 [106K]

(x)(3x - 5) = 12
3x^2 - 5x = 12
3x^2 - 5x - 12 = 0
(x - 3)(3x + 4) = 0
x = 3, -4/3
The answer must be negative so the number is -4/3.

Hope this helps!

4 0

3 years ago

What are the coordinates of the point that is one half the distance between A(−3, −5) and B(2, 7)?

Olenka [21]

Answer:

$(\frac{-1}{2},1)$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Midpoint Formula: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

Step 1: Define

A (-3, -5)

B (2, 7)

Step 2: Find midpoint

Substitute: $(\frac{-3+2}{2},\frac{-5+7}{2})$
Add: $(\frac{-1}{2},\frac{2}{2})$
Divide: $(\frac{-1}{2},1)$

3 0

3 years ago

Arrange the equations in the correct sequence to rewrite the formula for displacement, , to find a. In this formula, d is displa

valina [46]

Answer:

$a=2[d-V_0t]/t^2=2d/t^2-2v_0/t$

Explanation:

Since, you have not included the formula, I will work here with the formula for constant accelaration motion that relates the four variables: displacement (d), Vo (initial velocity), a (acceleration) and t (time).

1) displacement formula:

$d= V_0t+\frac{1}{2} at^2$

2) Subtract the term Vot from both sides:

$d-V_0t= \frac{1}{2} at^2$

3) Multiply both sides by 2:

$2d -2V_0t=at^2$

4) Divide both sides by t²

$2[d-V_0t]/t^2=a$

So, you have obtainded:

a = 2[d - Vo×t] / t²

Yet, you can arrange it in different ways. For example, you might separate into two terms:

$a = \frac{2d}{t^2} - \frac{2V_0}{t}$

8 0

3 years ago