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stepan [7]
3 years ago
15

In a complete sentence, write down a method you could use to determine if an equation is written in the correct way.

Mathematics
1 answer:
Sergio039 [100]3 years ago
3 0

An equation is written in a correct way if the equation is balanced. If you want to find out if the equation is balanced, you have to count how many molecules of each element is present and then just balance the equation on the left side and the right side.

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A rental truck costs $36 plus $0.60 per mile. write a equation that gives the cost of driving the truck x miles.
lora16 [44]
F(x) = 36 + 0.60 × (x)
3 0
3 years ago
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Let x be the size of a house (sq ft) and y be the amount of natural gas used (therms) during a specified period. Suppose that fo
guapka [62]

Answer:

y = 0.019x - 7

32.9 therms

0.019 therms

1.9 therms

Step-by-step explanation:

Given the following :

X =size of house (sq ft)

Y = Amount of natural gas used

The general form of a some linear regression model :

y = ßx + a

Where ;

ß = slope or gradient

x = independent variable

y = predicted value

a = y- intercept value

(A)

If ß = slope of population regression line = 0.019

a = y intercept of population regression line = -7

The regression model could be expressed as :

y = 0.019x + (-7)

y = 0.019x - 7

(B)What is the mean value of gas usage for houses with 2100 sq ft of space?

Here x = 2100 sq ft ; Inputting the value of x into the regression equation:

y = 0.019x - 7

y = 0.019(2100) - 7

y = 39.9 - 7

y = 32.9 therms

C) What is the average change in usage associated with a 1 square foot increase in size?

Change in usage associated with change in size can be gotten from :

ßx, where, ß change in y with respect to x ;

x = 1 square foot

ß = 0.019

Change = 0.019*(1) = 0.019 therms

(d) What is the average change in usage associated with a 100 square feet increase in size?

ßx, where, ß change in y with respect to x ;

x = 100 square feet

ß = 0.019

Change = 0.019*(100) = 1.9 therms

6 0
3 years ago
How do I solve this question ?
Julli [10]

Step-by-step explanation:

here you go!

so basically x = 9 cars

4 0
1 year ago
A player chooses one of the numbers 1 through 4. After the choice has been made, two regular four-sided (tetrahedral) dice are r
d1i1m1o1n [39]

Answer:  =\frac{-1}{16}

Step-by-step explanation:

given data:

number to be chosen from = 1,2,3,4.

<u><em>Solution:</em></u>

ways the number can show

2*3*1=6 ways for your number to appear once.

1*1=1 ways for your number to appear twice.

3*3=9 ways for your number not to appear at all

= \frac{6(1) + 1(2) - 9(1)}{16}

= \frac{6+2-9}{16}

=\frac{-1}{16}

expected return of the player is =\frac{-1}{16}

4 0
3 years ago
16 points PLZ HELP which equation represents the function graphed on the coordinate plane
maksim [4K]
It’s the second one. The one that is g(x) = |x + 3| — 1
5 0
3 years ago
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