9a)
4x - 2 + 30 = 68
4x + 28 = 68
4x = 40
x = 10
9b)
y = 180 -68
y= 112
The area of the triangle EFG is 7.4 square units.
Explanation:
Given that the measurements of the sides of the triangle are EF = 8, EG = 8 and 
We need to determine the area of the triangle EFG
<u>Area of the triangle:</u>
The area of the triangle EFG can be determined using the formula,
Substituting the values, we get,
Simplifying the values, we have,
Multiplying, we get,
Dividing, we get,
Hence, the area of the triangle EFG is 7.4 square units.
The true statement about the residual plot is (a) The regression line is a good model because there is no pattern in the residuals.
<h3>How to interpret the residual plot?</h3>
For a residual plot to be considered a good model, the points on the plot must be at random and they must not follow a specific pattern
From the graph, we can see that the points are scattered
Hence, the true statement about the residual plot is (a)
Read more about residual plots at:
brainly.com/question/9329287
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Answer:
$1000
Step-by-step explanation:
We can form an equation for Clayton's account: C = 500 + 10x
We can form an equation for Clayton's account: J = 400 +12x
(where x is the number of days)
When the two accounts will contain the same amount, it means: C = J
<=> 500 + 10x = 400 +12x
<=> x =50
After 50 days, there accounts will be balance. Then, we substitue x into any of the 2 equation to find out the amount: 500 + 10(50) = $1000
X = 16
x = - 16
You could do it this way
x^2 - 256 = 0
(x - 16)(x + 16) = 0
x - 16 = 0
x = 16
x + 16 = 0
x = - 16
