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tresset_1 [31]
3 years ago
11

Solve for the values of x and y.

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
8 0

Answer:

x = 20

y = 7.2

Step-by-step explanation:

12/x = 9/15

9x = 180

x = 20

12/x= y/12

12/20 = y/12

144 = 20y

y = 7.2

y = 20

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Explain how you would estimate to subtract 189 from 643
bulgar [2K]
To estimate an answer to this problem, you must first estimate the numbers as well. 189 would round to 190, and 643 would round to 640. Now you would subtract 190 from 640, giving you 460. 
4 0
3 years ago
Read 2 more answers
What is the slope of the equation y-<br> 5=-X?
tatyana61 [14]

Answer:

-1

Step-by-step explanation:

y-5 =-x

change it to y=mx+b form

y= -x+5 (m is slope = -1)

-1 is your slope

5 0
3 years ago
2. Kelsey has a list of possible functions. Pick one of the g(x) functions below and then describe to Kelsey the key features of
Gemiola [76]

Answer:

g(x) = (x + 2)(x − 1)(x − 2)

I picked the first one, because why not. :)

<u>End behavior.</u> This is a positive function; there are no negatives next to any of the xs. There are 3 xs, so it's a cubic; a positive cubic has a down-up end behavior.

<u>Y-intercept.</u> We can either graph this on the calculator/online or work it out algebraically. Multiply together the constants: +2 * -1 = -2, -2 * -2 = 4. So the y-intercept is at y = 4. (0,4). I've also attached the graph.

<u>Zeros / x-intercept.</u> This is really simple: set g(x) equal to 0, separate these three parenthesis (x+2) (x-1) and (x-2) into three equations by the Zero Product Property.

x+2 = 0

x = -2

x-1 = 0

x = 1

x-2 = 0

x = 2

So the function has three zeros at (-2,0) (1,0) and (2,0).

3 0
3 years ago
Solve the following system of equations graphically on the set of axes below.
Elza [17]
The 1st line slopes up with y intercept = 5
the 2nd line slopes down with y intercept =-5

they intersect in quadrant II at (-6,4)

Here’s an example to go along with your problem, plug in your numbers!
3 0
3 years ago
Describe and correct the error in finding the product <br>2/5×3/10=6/50=3/25
Elis [28]

Answer: There is not error in finding the product. The result is: =\frac{3}{25}


Step-by-step explanation:

1. You have the following multiplication shown in the problem above:

\frac{2}{5}*\frac{3}{10}

2. To solve it you must multiply the numerators and multiply the denominators, as you can see below:

\frac{2*3}{5*10}=\frac{6}{50}

3. When you simplify the product, you obtain the following result:

=\frac{3}{25}


4 0
3 years ago
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