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2 years ago

Witch expression is equivalent

Mathematics

1 answer:

leva [86]2 years ago

5 0

The equivalent expression of -14 - 6 is -14 - (+6)

<h3>What are equivalent expression?</h3>

Equivalent expressions are expressions that have the same value when evaluated

<h3>How to determine the equivalent expression?</h3>

The expression is given as:

-14 - 6

Put the terms of the expression in brackets

-14 - (6)

Rewrite 6 as +6

-14 - (+6)

Hence, the equivalent expression of -14 - 6 is -14 - (+6)

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A patio floor is shaped like a rectangle with a

Alexxandr [17]

The answer should be 23

6 0

3 years ago

And check your answers. At the end of the activity, write a brief evaluation of your work.

Rashid [163]

Answer:

<em>16.5 gallons per minute.</em>

Step-by-step explanation:

The given table is:

$\begin{center}\begin{tabular}{ c c } Time(minutes) & Water(gallons) \\ 1 & 16.50 \\ 1.5 & 24.75 \\ 2 & 33 \\\end{tabular}\end{center}$

We are given this linear function in the form of table.

Let 't' be the time and W(t) be the function with which the gallons of water are changing with time.

We can use slope intercept form to find the equation.

$y=mx+c$

Slope of a function:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$x_2 = 1.5\\x_1 = 1\\y_2 = 24.75\\y_1 = 16.50$

$m=\dfrac{24.75-16.50}{1.5-1}\\\Rightarrow m =16.5$

This slope is the constant of proportionality.

i.e. the rate at which the number of gallons are changing per minute.

So, the answer is <em>16.5 gallons per minute.</em>

8 0

3 years ago

Una botella pesa 1090kg cuando esta llena y 250g cuando esta vacía. ¿Cuanta masa de aceite contiene la botella?

Hitman42 [59]

Respuesta:

1089,75 kg

Explicación paso a paso:

Dado que :

Masa de embotellado lleno = 1090 kg

Masa de la botella vacía = 250 g

Masa de aceite que contiene la botella:

Expresando la masa de la botella cuando se llena en gramos:

1000 g = 1 kg

1090 kg = (1090 * 1000) = 1090000 g

La masa de aceite que contiene la botella es así:

Masa de la botella cuando está llena - masa de la botella cuando está vacía

1090000 g - 250 g = 1089750 g

Por tanto, la masa de aceite es 1089750 g

O 1089750/1000 = 1089,75 kg

7 0

3 years ago

Which of the following random variables is not discrete?

Ilia_Sergeevich [38]

Answer:

b) The annual rainfall in a city

Step-by-step explanation:

Remember, a discrete variable is one that can only take a finite number of values between any two values of a characteristic and a continuous variable is one that can take an infinite number of values between any two values of a characteristic.

a) Observe that the variable x='<em>classes taken in one semester' </em>can take the values 0,1,2,...,n.

Then the variable x is discrete

b) Observe that the variable x='<em>annual rainfall in a city'</em> can take the values 2in, 1.6in, 5.1 in, 0.1in

Then, the variable x can be take a infinite number of values between two number. So x isn't a discrete variable.

c) The variable x=<em>'attendance at a football game' </em>can take the values 3000,5000... n. And never will be a decimal number because There cannot be a personal decimal number. Therefore, x is a discrete variable.

d) The variable x='<em>patients treated at an emergency room in a day</em>' can take the values 1,2,3,...,n. And never will be a decimal number because There cannot be a personal decimal number. Therefore, x is a discrete variable.

7 0

3 years ago

I need help with questions 4-9 please and thank you

Colt1911 [192]

Answer:im not sure but i thinkk its like this

Step-by-step explanation:

You use the distributive property so

4. 16

5. 18

in numbre six you multuply 6x5 and 5x5 then you add it and its 55

6.55

7.6

8.39

9.17

6 0

2 years ago