Answer:
b) 3w² = 243
Step-by-step explanation:
area = L x w
L = 3w
substitute for L:
243 = 3w x w = 3w²
3w² = 243
let the unknown answer be equal to f
.-2.1 - f = -3/2
-f = -3/2 + 2.1
-f = 0.6
f = -0.6
Answer with explanation:
The 90% confidence interval (51%, 61%) for proportion means that the proportion of getting heads lie in it.
Given : Total number of times coin is tossed = 250
Number of times they got head =140
The probability of getting a head = 0.56
The confidence interval for proportion is given by :-

Given significance level : 
Critical value : 
Now, the 90% confidence interval for proportion will be :-

Hence, the given confidence interval is correct.
32.7%
There are 13 clubs in a 52 card deck, and there are 4 kings in a 52 card deck.
13 + 4 = 17
17/52 = 0.3269
0.3269 * 100 = 32.69
32.69 is rounded to 32.7
I hope I helped. I would appreciate Brainliest.
Answer:
p:s
6x:2
Step-by-step explanation:
find prs first which u find by doing
pr. rs
4x-2×3x) 3x-2×2
pr=12x:6x
rs=6x:4
p. r. s
12x: 6x 4
6x. 3x. 2
hence ps
6x:2