$15 more, than twice Friday's earnings
d is how much he earned on Friday
s is how much he earned on Saturday
2d + 15 = s
Answer:
The answer is false
Step-by-step explanation:
In a sample above 30 obs like this the confidence interval is defined as
X+- t* (s/sqrt(n)) where X is the mean t the tvalue for a given confidence level, n the size of sample and s standar deviation.
To find de appropiate value of t we must see the T table where rows are degrees of freedom and columns significance level
The significance is obtained:
significance = 1 - confidence level = 1 - 0.9 = 0.10
Degrees of freedom (df) for the inteval are
df = n - 1 = 18 - 1 = 17
So we must look for the value of a t with 17 values and significance of 0.10 which in t table is 1.740 not 1.746 ( thats the t for 16 df)
Answer:
I can get you jump started a bit.
Step-by-step explanation:
So Each of those pairs of figures are Similar.
This means they have equal angle measures but different side lengths.
To find it, we have to make a <u>Proportion:</u>
<u>Example: #11</u>
<u />
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So let's solve the first one!
Easy As Pie!
If you need more help, contact me! :)
Hope this Helps!
P.S. Stay Safe!
Hmmm this is a little hard I believe c
Answer:
y = 3
x = 5
Step-by-step explanation:
40y + 20 = 60 y - 40 because opposite angles are equal
solve this equation
40y + 60 = 60 y
60 = 20 y
3 = y
8x = 2x +30
6x = 30
x = 5
