Let X be a random variable representing the weight of
strawberries.
<span>
μ= 12</span>
σ= 2.5
Solution:
<span>
P(X < 10) = P(z < (10 - 12)/2.5) </span>
= P(z < -2/2.5)
= P(z < -0.8)
= 1 - P(z < 0.8)
= 1 - 0.7881
= 0.2119
<span>The answer is letter B.</span>
Answer:
1) triangles are similar
Step-by-step explanation:
The height from vertex X of isosceles ∆WXY is 4 units. The width WY is also 4 units. In isosceles ∆UVW, the height from vertex V is 6 units, and the width UW is also 6 units.
The height ratios are ...
∆WXY/∆UVW = 4/6
The width ratios are ...
∆WXY/∆UVW = 4/6
The measures of ∆WXY are proportional to those of ∆UVW, so the triangles are similar.
_____
Strictly speaking, you cannot go by triangle height and width alone. That is why we made not of the fact that the triangles are <em>isosceles</em>. When base and height of an isosceles triangle are proportional, the Pythagorean theorem guarantees that side lengths are proportional. Trigonometry can also be invoked to support the claim that angles are congruent.
Did you already turn it in? Lmk if u didn’t to help u
Answer:
A majority of the voters in the constituency need not necessarily be opposing the bill as the sample of letters received may not be representative of the entire constituency of voters.
Step-by-step explanation:
Total number of letters received on the bill = 1128
Number of letters opposing the legislation = 871
However this may not be definitive pointer to the fact that majority of the voters oppose the bill. This is because the sample of voters who have written to the congresswoman may not be representative of the entire population ( which is expected to be much more than 1128). Consider the scenario where mostly those individuals who oppose the bill have sent a letter while majority of the supporters have not mailed their approval. In such a case, the numbers would provide a mistaken assumption about widespread disapproval of the bill.
Well, think about what's happening from one number to the next. What do you do to -6 to get to -3? You divide by 2. Does the pattern continue? Yes, because the next number is 3/2. And since 2*2 is 4, the next number is 3/4. So your ratio is 1/2.