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Tatiana [17]
3 years ago
7

So i need help with this question pls

Mathematics
2 answers:
quester [9]3 years ago
8 0

Answer:

D. clockwise 90 degrees , rotation , enlargement

Paladinen [302]3 years ago
3 0
The triangle turns once to the right(clockwise), rotates, and gets larger.

A.) Doesn’t move 270 degrees clockwise

B.)counter clockwise is the wrong way

C.)doesn’t say any thing about reflecting over the y- axis and the shape is symmetrical anyway so the sale wouldn’t change.

D.) Fits all and is the answer.

Hope this helps!
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A new car loses value at a constant rate. You purchase a new car for $21,500. After 3 years the value of the car was $14,120. Wh
Airida [17]

Answer:

Step-by-step explanation:

If the car is depreciating at a constant rate, this indicates that the function is linear.  We can find the equation for the linear function by first finding the slope of the line.  Let's do that using the slope formula.  The coordinates we will use to do this are found in (year, value).  Our coordinates are (0, 21500) and (3, 14120).  The first coordinate says that before any time goes by at all, meaning when the car was brand new, its value was 21500.  The second coordinate says that after 3 years, the value of the car was 14120.

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

Filling in:

m=\frac{14120-21500}{3-0}=\frac{-7380}{3}=-2460

This is the slope.  In the context of our problem, it means that for each year that goes by, the car's value goes down $2460.  

Now we can use that slope and one of our coordinates to write the equation of the line.   We can choose either one of the coordinates to write our equation.  Let's use the first one, since it will be easier.  Rest assured that regardless of which one you choose, you will get the same equation. We fill in the slope-inteercept form of a line, y = mx + b, where y is the y value from the coordinate, m is the slope we solved for, x is the x value from the same coordinate, and b is the y-intercept.  We are solving for b.

21500 = -2460(0) + b and

21500 = 0 + b so

b = 21500.  Our equation, then, is

y = -2460x + 21500

If we want to find the value of the car, y, in 5 years, x, we plug in 5 for x and solve for y.

y = -2460(5) + 21500 and

y = -12300 + 21500 so

y = $9200

That means that in 5 year the car will be worth only $9200 when it is 5 years old.

5 0
3 years ago
Brewsky's is a chain of micro-breweries. Managers are interested in the costs of the stores and believe that the costs can be ex
Fynjy0 [20]

Answer:

The answer is "88.9%"

Step-by-step explanation:

The Variance percentage indicates through the REgression equation but, the R-Square, it becoming the determination coefficient. 88.871% of the variance could be explained according to the above results.

3 0
2 years ago
Please I can’t seem to get the answer
kap26 [50]
Volume = 3.5×3.5×5 = 61.25 inches. A. is the correct answer
4 0
3 years ago
volunteers collected non perishable food items and packed 14 items per box. If the volunteers collected a total fo 200 items, ho
klio [65]
Do 200/14 and get 14.2857142857 so about 14 boxes
5 0
11 months ago
Whats the sum of 3/8 and 1/16 <br><br>a 1/6<br>b 4/24<br>c 7/16<br>d 1/4
Andreyy89
3/8 + 1/16= 7/16 
so it's c. 7/16
6 0
3 years ago
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