Answer:
-38
Step-by-step explanation:
y=2
z=-17
yz-y^2
(2)(-17)-(2)^2
-34-4
-38
Solution here,
In the figure, the upper small triangle is similar to a lagre triangle.
Now, from the property of similar triangle,

therefore, x= 7
Step-by-step explanation:
x=20
y=100
solution in image
The class width for this Frequency Distribution Table is 5.
<h3>What is the class width?</h3>
The class width is the difference between the upper boundary and the lower boundary of the class.
The class width = upper boundary - lower boundary
5 - 0 = 5
To learn more about Frequency tables, please check: brainly.com/question/27344444
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<h2>9</h2>
Step-by-step explanation:
x² - 9x = 36
x² - 9x - 36 = 0
x² + 3x - 12x - 36 = 0
x ( x + 3 ) - 12 ( x + 3 )
( x - 12 ) ( x + 3 )
x = 12, -3
sum = 12 + (-3)
= 12 - 3
= 9