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Lelu [443]
3 years ago
10

Do I have the right answer?

Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0
Yes, I think I’m not sure correct me if I’m wrong .
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Whats the distance between the two points (-5,2) (2,-7)​
ankoles [38]
D= 11.40
The distance between the coordinates is 11.40 units.
5 0
3 years ago
A large city newspaper periodically reports the mean cost of dinner for two people at restaurants in the city. The newspaper sta
inysia [295]

Answer: C) 133

Step-by-step explanation:

The formula to find the sample size is given by :-

n=(\dfrac{z^*\cdot\sigma}{E})^2

, where z* = Critical z-value

\sigma = Population standard deviation for prior study.

E= Margin of error.

As per given , we have

\sigma=$35

E= 5

The critical z-value for 90% confidence level is 1.645.

Substitute al;l the value sin the above formula  , we get

n=(\dfrac{1.645\times 35}{5})^2

n=(\dfrac{57.575}{5})^2

n=(11.515)^2

n=132.595225\approx133

Hence, the minimum sample size needed is 133.

Thus , the correct answer is : C) 133

6 0
4 years ago
Solve the inequality W>Y+H/P for H
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W - Y > H/P
P(W - Y) > H
H < P(W - Y)
3 0
3 years ago
Can anyone help me in Ptolemy's theorem?
GalinKa [24]

Answer:

Well, I'm not sure what you mean but Ptolemy's Theorem gives a relationship between the side lengths and the diagonals of a cyclic quadrilateral; it is the equality case of Ptolemy's Inequality. Ptolemy's Theorem frequently shows up as an intermediate step in problems involving inscribed figures.

8 0
3 years ago
Find the equation of the line. <br> Use exact numbers.
AlekseyPX
The slope of the line (m) = 3/1  = 3  
and the y intercept is at (0,3)  that is y = 3  so b = 3

using the slope intercept form y = mx + b

m = 3 and b = 3

so answer is y = 3x + 3
8 0
3 years ago
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