Hi there!
Work out the parenthesis.
Combine like terms.
Subtract 9 from both sides.
Subtract 4x from both sides
Divide both sides by -9
Answer:
35 i think is the answer but im probably wrong
Step-by-step explanation:
<span>True A.)
It is the longest side of a right triangle.
False B.) It is one of the legs.
It is opposite the right angle.
False C.) Its length is the sum of the lengths
of the other two sides.
False D.) It forms a right angle with an adjacent
side.
If option B is a single choice, then it has to be called false.
Look at option B.
B. "It is one of the legs" is false.
"It is opposite the right angle" is true.
Are you sure option B. is not two different choices, and there are really 5 choices instead of 4?
</span>
Answer:
[22.57 ± 2.776]
Step-by-step explanation:
Hello!
You have the 95% Confidence Z-interval (21.182;23.958), the mean X[bar]= 22.57 and the sample size n=25.
The formula for the Z interval is
[X[bar] ± 
]
The value of Z comes from tha standard normal table:
The semiamplitude (d) or margin of error (E) of the interval is:
E or d= (Upperbond- Lowerbond)/2 = (23.958-21.182)/2 = 2.776
[X[bar] ± E]
[22.57 ± 2.776]
I hope it helps!
Answer should be 20
4x5=20
