Answer:
D. The slope is -2. The y-intercept is (0,3)
Step-by-step explanation:
You can use any two points.
Let's use the first two points: (0, 3), (2, -1)
slope = (y_2 - y_1)/(x_2 - x_1)
slope = (-1 - 3)/(2 - 0)
slope = -4/2
slope = -2
The y-intercept occurs when x = 0. For x = 0, y = 3, so the y-intercept is 3 which means the point (0, 3).
Answer: D. The slope is -2. The y-intercept is (0,3)
Answer:
c) 160,000
Step-by-step explanation:
Since we know that the population of both city x and city y are equal in 2015, we can use the population growth of population of city x to find the population in 2015:
120,000 x 1.2 = 144,000.
Now, since we know that City Y's population decreased 10% from 2010 to 2015, we can divide the 2015 population of city Y (which is the same as city x - 144,00) by 1 - decrease rate to find city y's population in 2010:
1 - .1 = .9
144,000 / .9 = 160,000
I hope this helps!
-TheBusinessMan
Answer:
The base is 9 and the height is 7, so the area is 9 (7) = 63 square units
Step-by-step explanation:
Plotting the points, you can see that the base is 9 units and the height is 7. This matches only the last answer choice.
Answer:
22.5
Step-by-step explanation:
SINCE Y VARIES DIRECTLY WITH X, WE USE THE FORMULA
y=kx; k representing the variable change, y= 7.5, x=5
> y=kx
>7.5= k(5) > 7.5= 5k
>k= 7.5/5 (divide to get the k)
k= 1.5
NOW REPLACE THE NEW VALUES OF X AND K AS THE VARIABLE CHANGE, TO FIND THE VALUE OF Y
>y=kx ; k=1.5 and x=15 y=?
>y= (1.5)(15)
>y=22.5
the value of y is 22.5 when x is 15
Answer:
C
Step-by-step explanation:
3x+4x-19+3x-1=180
10x=180+19
x = 199/10 = 19 (round to 20)
x = 20
<A= 20
<B= 80-19= 61
<C=. 59
The longest side is across from the largest angle. Draw the triangle ABC.
AC is across <C (the largest angle)
