Answer:
-0.75
Step-by-step explanation:
To get the z score we have to use this formula
Z = X-mean/standard deviation
X = 2300
Mean = 3200
The standard deviation = 1200
When we plug these values into the z formula above, we have:
2300-3200/1200
= -900/1200
= -0.75
the z-score for a backyard structure costing $2,300 is therefore -0.75
Answer: C
Step-by-step explanation:
First, you should see that the bottom right corner is an angle on the other side. So subtract 180 from 95 to get 85. Since all angles in a triangle add up to 180, You do 85 + 60 + x = 180. You simplify further to get 145 + x = 180.
Subtracting 145 from both sides leaves you with x = 35, which gives you C.
So C is the correct answer.
Step3 theres a division before multiplication
The answer should be -42-5x
Answer:
Step-by-step explanation:
Let's solve your equation step-by-step.
9a−2=−26
Step 1: Add 2 to both sides.
9a−2+2=−26+2
9a=−24
Step 2: Divide both sides by 9.
9a
9
=
−24
9
a=
−8
3
Answer:
a=
−8
3
2
3
x−4=10
Step 1: Add 4 to both sides.
2
3
x−4+4=10+4
2
3
x=14
Step 2: Multiply both sides by 3/2.
(
3
2
)*(
2
3
x)=(
3
2
)*(14)
x=21
Answer:
x=21