Answer:
s = 10
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion , that is
= 
( substitute values )
= 
( cross- multiply )
4s = 40 ( divide both sides by 4 )
s = 10
Answer:
X=6.1
Step-by-step explanation:
x-5=0.1(x+5)
x-5=0.1x+0.5 (distribute 0.1)
x=0.1x+0.5+5 (add 5 to each side)
x-0.1x=5.5 (subtract 0.1x from each side)
0.9x=5.5 (combine like terms)
x=5.5/0.9 (divide by 0.9 on both sides)
x=6.1 (simplify)
Answer:
The amount of their mortgage loan is $108000
Step-by-step explanation:
we are given
total purchasing amount =$123000
down payment amount = $15000
we know that
Mortgage loan amount = (total purchasing amount)-(down payment amount)
now, we can plug value
Mortgage loan amount = $123000-$15000
Mortgage loan amount =$108000
Answer:
And the best option would be:
c. 1450 +/- 12
Step-by-step explanation:
Information provided
represent the sample mean for the SAT scores
population mean (variable of interest)
represent the sample variance given
n=25 represent the sample size
Solution
The confidence interval for the true mean is given by :
(1)
The sample deviation would be 
The degrees of freedom are given by:
The Confidence is 0.954 or 95.4%, the value of 
and 
, assuming that we can use the normal distribution in order to find the quantile the critical value would be 
The confidence interval would be
And the best option would be:
c. 1450 +/- 12
3(282/1) should be what you are lookin for
