Answer:
7x+8y
Step-by-step explanation:
4x-(-8y-3x)
=4x+8y+3x
=7x+8y
A. ratio of areas = 2^2 /5^2 = 4/25
B 14^2 : 1 = 196:1
C. ratio of perimeters would be sqrt81 = 9 times
3x = 4(x-2.25)
3x = 4x-9
add 9 to both sides
3x+9 =4x
subtract 3 x from each side
x=9
Tonya's items were $9 each
Tony's items were 9-2.25 = 6.75 each
check:
9*3=27
4 *6.75 = 27
Answer:
A. H0: μ = 6 vs. Ha: μ > 6
H0 : µ = 6 vs. Ha : µ > 6
Step-by-step explanation:
Null hypotheses state that there is no difference between a parameter and a specific value.
Alternative hypotheses states a specific difference between a parameter and a specific value.
Null hypotheses is represented as H0
Alternative hypotheses is represented as Ha.
From the question,
The claim is this "Is the mean height for all adult American males between the ages of 18 and 21 now over 6 feet?" The claimed statement represent the Alternative hypotheses.
So, the alternative hypotheses is:
Ha: μ > 6
While the null hypotheses is:
H0: μ = 6
There’s a good website called math papa that works really well for stuff like this
