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cricket20 [7]
3 years ago
9

Please help I’m being timed!!! A country commits to decreasing spending for infrastructure in various ways at a rate of 30% per

year. At the time of the announcement, the country is spending $12 billion per year. Which graph models the amount of infrastructure spending for future years?

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

It would be the graph that has point (0,12) and is decreasing to the right.

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Plz help me with this i do not understand math stuff
Zarrin [17]

Answer: Pink choice: y= -6x -2

Step-by-step explanation:

In order to be parallel, the slope must be the same. You find the slope as the number or fraction connected to x. <em>("co-efficient" of x in math talk)</em>

In the given equation, that is -6.  (So that knocks out the first two choices)

The other thing to look at is the y-value of the given coordinate,(-1,4)

<em>(The y-value is the second number in the coordinate (x.y) is the pattern)</em>

and compare it to the the last number in the equations in the choices and     Here the Yellow choice has y= -6x + 4 so this line can't pass through the coordinate given, because  +4 in this equation is where the line crosses the y-axis. ("y-intercept"  in math talk)  So yellow choice is out!

The attachment shows what the graphs of the choices look like.

The black line is the correct answer. The given coordinate (-1,4) is the labeled red spot. The blue line is the given equation. (You can see where it "intercepts the y-axis on the +3)   And the green line also has the -6 slope, but misses the point and intercepts the y-axis at 4.)    

I hope the diagram and explanation helps you understand better. It can be confusing.

6 0
3 years ago
What are the partial products for 3.2 x 0.6?
Lera25 [3.4K]

Answer:

This is a complete lesson with instruction & exercises for 5th grade about multiplying decimals by decimals. The interpretation for multiplying a decimal by a decimal is to think of it as taking a fractional part of a decimal number (the symbol × translates to "of"). The lesson compares multiplication by a decimal to scaling & shrinking a stick. Lastly, it shows the common shortcut to decimal multiplication (multiply as if there were no decimal points; the answer has as many decimals as the factors have in total.)

In the video below, I explain the rule for multiplying decimals (put as many decimal digits in the answer as there are in the factors.) I explain where this rule comes from, using fraction multiplication. The lesson continues below the video.

8 0
3 years ago
How do you solve for X ax-x=c
MArishka [77]
Factor out the "x"  and you'll have:
x(a-1) =c \qquad /:(a-1) \\ x=\frac{c}{a-1} \qquad \qquad  a\neq 1
8 0
3 years ago
Find the volume of each figure. Round to the nearest hundredth if necessary.
777dan777 [17]

810

Step-by-step explanation:

multiple 3x3 9 then multiple 3x9 27 multiply 27x3 equal 81 then add zero 810

8 0
3 years ago
How to work out an angle using cosine. three sides are; 8,19,12.
Kay [80]
To solve for cos use 
adjacent over hypotenuse 
divide the lengths of the sides 
adj. / hyp.

7 0
3 years ago
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