Setup Average Equation:
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Average=Sum of our 4 numbers + unknown number of x
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Total Numbers
15 = 3 + 19 + 8 + 32 + x
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5
Cross Multiply
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3 + 19 + 8 + 32 + = 15 x 5
x + 62 = 75
Subtract 62 from both sides of the equation to isolate x:
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x + 62 - 62 = 75 - 62
x = 13
Answer:
C:It is a strong positive correlation,and it is not likely causal.
Step-by-step explanation:
Correlation refers to the relationship between the two variables i.e x and y. It has mainly two types of correlation. The first one is positive and the other one is negative. It lied between -1 to 1. The 1 represents the strong positive correlation while the -1 represents the strong negative correlation
Since the correlation coefficient is 0.74 which is nearest to 1 so it denotes the strong positive correlation and thus is not causal
Hence, the correct option is c.
The values of the slope and y-intercept are m=Undefined m=Undefined and (Undefined)⋅(6)+b=−3(Undefined)⋅(6)+b=-3
Undefined
Answer:
1.2x - 10.8 - 2.3x - 9.2 = -1.1x - 20; Rewrite as follows. (x 2y)(xy 2) = (x 2 x)(y y 2) ... x + 2.3; - x / 5 = 2; (x - 4) / (- 6) = 3; (-3x + 1) / (x - 2) = -3; x / 5 + (x - 1) / 3 = 1/5 ... 2 x 2 - 8 = 0; x 2 = -5; 2x 2 + 5x - 7 = 0; (x - 2)(x + 3) = 0; (x + 7)(x - 1) = 9; x(x - 6) = -9 ... For what value of the constant k does the quadratic equation x 2 +2x = - 2k .
Step-by-step explanation:
We have the conditions
<span>The doctor cannot perform more than seven follow-ups per day.
</span>y ≤ 7
<span>The hospital has eight hours available for appointments.
</span>x + 0.5 y ≤ 8
And the hospital earns a total amount of z
120x + 70x = z
