Answer:
4
Step-by-step explanation:
You have positive number and it is bigger that negative so your result will be positive too:
7-3=4
Complete Question
The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. Test 
vs 
when the sample has n 900 , and 
with 
. Find the value of the standardized z -test statistic. Round your answer to two decimal places.
Answer:
The value is 
Step-by-step explanation:
Generally the standardized test statistics is mathematically represented as
=> 
=>
=>
<span>To find the answers to each you have to divide the total distance by the total time to get the answer in meters/sec, which would be distance run per sec.
A. 200m/19.30sec = 10.36 meters per second
B. 400m/43.18sec = 9.26 meters per second
C. 100m/9.69sec = 10.32 meters per second</span>
Answer:
use this app photomath
Step-by-step explanation:
You can take a photo and its gives you the answer and the explanation
Answer:
Answer:
(
2
,
−
1
)
Explanation:
The quickest way is to use elimination
3
x
+
4
y
=
2
+
2
x
−
4
y
=
8
−
−
−
−
−
5
x
=
10
⇒
x
=
2
Now substitute into one of the original eqns.
3
×
2
+
4
y
=
2
6
+
4
y
=
2
4
y
=
−
4
⇒
y
=
−
1
check in other eqn.
2
x
−
4
y
=
8
2
×
2
−
(
4
×
−
1
)
=
4
−
−
4
=
4
+
4
=
8
√
solns
(
2
,
−
1
)
Step-by-step explanation:
