Answer:
sorry not my level :(
Step-by-step explanation:
B= 60
To find b you must do the pythagorean theorem because it is a right triangle
65^2 - 25^2=b^2
3600=b^2
60=b
x= 18
To find x you must know that a triangle is made up of 180 degrees.
x= 180-(72+90)
x=180-162
x=18
hope this helped :)
Explanation:
"Five times" means
5
(
...
)
,
"the sum of a number, say
x
, and
−
3
", means"{(x+(-3)}=(x-3)#.
Taking all these together, the reqd. Algebraic Expression turns out to be
5
(
x
−
3
)
.
So, you need to take the $45 and multiply it by 50%, then take that product and add it to 45.
Answer:
<em>95% confidence interval for the proportion of blocks that are sufficiently strong</em>
<em>(0.83913 , 1.02293)</em>
Step-by-step explanation:
<u><em>Step:-1</em></u>
Given that the sample size 'n' = 29 blocks
<em>Estimate proportion </em>
<u><em>Step:-2</em></u>
<em>95% confidence interval for the proportion of blocks that are sufficiently strong</em>
(0.93103 - 0.0919 , 0.93103 +0.0919)
(0.83913 , 1.02293)
<u><em>Final answer</em></u>:-
<em>95% confidence interval for the proportion of blocks that are sufficiently strong</em>
<em>(0.83913 , 1.02293)</em>