-4x + 9y = 9...............(1)
x - 3y = -6 Multiply through by 3:-
3x - 9y = -18..............(2)
adding equations (1) and (3):-
-x = -9
x = 9
Substitute for x in equation (1)
-4(9) + 9y = 9
-36 + 9y = 9
9y = 45
y = 5
Answer is x = 9 and y = 5
Answer:
C:7
Step-by-step explanation:
Complementary is what else to add to equal 90 degrees. 10 is complementary to 80 because 80+10=90. Supplementary is what would equal to 180. Complementary is usually used in an right angle and supplementary in a line.
Answer:
AC=
Step-by-step explanation:
AC is the base, BC is the hypotenuse, so the side length is AB.
We are given that AC=7 units, and BC is equal to 8.
Thus we have 8^2-7^2=(AB)^2
64-49=(AC)^2
15=(AC)^2
AC=
The range of the parabola that opens down and has its vertex as (2, 5) is (b) ![(-\infty,5]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C5%5D)
<h3>Vertex</h3>
The vertex of a parabola can represent the minimum or the maximum point in the parabola
The vertex of the parabola is given as:
<h3>The range</h3>
The range of a function is the set of output values the function can take
From the question, we understand that the parabola opens down.
This means that, the vertex of the parabola is a maximum.
Hence, the range of the parabola is
Read more about parabola at:
brainly.com/question/13136492
Answer:
He should have used the median and IQR because of the outlier.
Step-by-step explanation:
The better statistical measures to employ when a data set contains outliers are the median and IQR.
From the question, it is possible to draw an inference that the home prices for Cinnamon Court are higher than those of Pepper Hill Road by employing the median.
Also, it is possible to draw an inference that home prices on Cinnamon Court are less variable than on Pepper Hill by using the IQR.
