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Zepler [3.9K]
3 years ago
10

FAST PLEASE!!!!! 10 POINTS!!!!!!! SHOW WORK FOR ALL!!!!!!

Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Step-by-step explanation:

-6 ( x - 2y )                          ( -12x ) / ( -2 )

-6 ( -3 - 2*-5 )                     -12 / -2 = 6

-6 ( -3 + 10)                          6x

-6 ( 7 )

-42

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What is the solution to the equation above
KonstantinChe [14]

Answer:

A = 3/4

Step-by-step explanation:

alternately could equal 0.75

5 0
2 years ago
To find out how fast a tree grows, you can measure its trunk. A giant red oak's diameter was 248 inches in 1965. The tree's diam
professor190 [17]
Any times you see the phrase: "Rate of Change", or even sometimes just the word "Rate" think slope. 

The word slope is just a fancy word that means the rate of change. 

Rate of Change is just a fancy phrase meaning how much does something change over some amount of time. 
So in this case our rate of change will have the units of inches per year. 

Let's get to the problem at hand! 
We'll need to find slope / the rate of change (the two are interchangeable with each other).
Let's go over the formula for slope:

m = (y2 - y1) / (x2 - x1) 

First we will need to label each of the "coordinated points (the two numbers that go together in a pair)" with either (x1,y1) or (x2,y2). 

A Giant Red Oak's diameter in 1965 was 248 inches. Keep in mind time is ALWAYS going to be X in rate of change problems (and most all problems for that matter).  

(1965,248) 
(X1,Y2)

(2005,251)
(X2,Y2)

Plug in the values into the equation!
m = (y2 - y1) / (x2 - x1)
m = (251 - 248) / (2005 - 1965) 
m = (3) / (40)

Type that into a calculator to get a decimal value over 1.
m = 0.075 inches per 1 year. 
Or... 

m = 0.075in / 1 year
8 0
3 years ago
How do you do a expression
8090 [49]
1. get rid of your parenthesis 
2. in order to do so you must look inside of the parenthesis and check if you have any like terms if so combine them
3. next use the distribution property or otherwise known as the rainbow
4. if you have an exponent to the right of your parenthesis then use the exponent rule
5. combine like terms by adding coefficients
6. finally combine the constants





5 0
3 years ago
A plane flies x mph. How far can it go in y hours? Which expression represents this?
natali 33 [55]

Answer:

xy miles

Step-by-step explanation:

3 0
2 years ago
Pls help 40 points<br>this is my last chance to get extra points pls serious answers ​
Alja [10]

Answer:

I think it is A or D

Step-by-step explanation:

I dont know because for a range to be determined, you must go at where the lowest point the function goes and the highest point it reaches, and the lowest is 250,000 and the highest is 1,000,000 but it says

250,000 < y < 1,000,000 and the A option says 0 < x < 110, I dont know but it is not b and c, I'm sorry if I'm wrong

8 0
3 years ago
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