9514 1404 393
Answer:
k = 100/9
Step-by-step explanation:
Cross-multiply to eliminate fractions.
9k = 10·10
Divide by the coefficient of k.
k = 100/9
Answer:
C. Point
Step-by-step explanation:
a point would just be a dot on a graph and it won't have an exact height or size or shape
Answer:
x=3
Step-by-step explanation:
2(x+1)=x+5
Use the distributive property to multiply 2 by x+1.
2x+2=x+5
Subtract x from both sides.
2x+2−x=5
Combine 2x and −x to get x.
x+2=5
Subtract 2 from both sides.
x=5−2
Subtract 2 from 5 to get 3.
x=3
The solution to the problem is as follows:
<span>Let be X: scores of SAT
P(X ≥ x) = 0.9
P((X - 500)/100 ≥ (x - 500)/100) = 0.9
P(Z ≥ z) = 0.9
z = 1.28
1.28 = (x - 500)/100
128 + 500 = x
x = 628
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!