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vaieri [72.5K]
4 years ago
8

The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the

department needs to estimate the average number of vehicles that pass an intersection each day. A random sample of 64 days gives us a sample mean of 14,205 cars and a sample standard deviation of 1,010 cars. What is the 92% confidence interval estimate of μ, the mean number of cars passing the intersection?
Mathematics
1 answer:
Nesterboy [21]4 years ago
4 0

Answer:

jfdslkhfbdjskbvdslkjfbv;kjdabva;ksjdvbljfslfdhglkdufhgdsrlkgujdsgljkdsfbvlkfdjdd;hgs;dihg;dsifvsj

Step-by-step explanation:

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I need help please yall <br><br>use orders of operation and simplify ​
UNO [17]

Answer: \large\boxed{12x^3-30x+3=0}

Step-by-step explanation:

Solve:\\\ 6(2x^2-5)x=-3\\\\Use\ distributive\ property\ first\\\\(12x^2-30)x=-3\\\\Now\ multiply\ the\ terms\ in\ ()\ by\ 'x'\\\\12x^3-30x=-3\\\\\large\boxed{12x^3-30x+3=0}

4 0
2 years ago
Answer soon please! Question and answers are in the photograph attached.
-BARSIC- [3]

Answer:

Δ MLP  ~  Δ HKG

By S-A-S similarity Postulate.

Step-by-step explanation:

Given:

In Δ MLP

MP = 20 ,

LP = 15

∠ P = 42°

In Δ HKG

HG = 16 ,

KG = 12

∠G = 42°

To Prove:

Δ MLP ~Δ HKG

Proof:

In Δ MLP and Δ HKG

\dfrac{MP}{HG}= \dfrac{20}{16}=\dfrac{5}{4} ..........( 1 )

\dfrac{LP}{KG}= \dfrac{15}{12}=\dfrac{5}{4}  ..............( 2 )

∴ \dfrac{MP}{HG}=\dfrac{LP}{KG} ...From 1 and 2

       ∠P ≅ ∠ G = 42°          ...............Given

∴ Δ MLP ~Δ HKG ......{ By S-A-S similarity test}............Proved

4 0
3 years ago
Can someone please help me on this question? This question has 2 answer choices. Thank you.
grin007 [14]
Hello!

To solve this you have to find the ratio between the two cylinders

Cylinder 1 height is 30
Cylinder 2 height is 20

this is a 30:20 ratio

This can be reduced to a 3:2 ratio

Now you look for one that are also equal to 3:2

3 * 7 = 21
2 * 7 = 14

The answers are 3:2 and 21:14

Hope this helps!
4 0
3 years ago
A boutique sold $127.50 worth of purses. How many purses did they sell? They sell for $7.50 each
myrzilka [38]
They sold 17 purses. 127.50 divided by the 7.50 is 17, which is the amount of purses
8 0
4 years ago
Out of a food critic, social worker, radio DJ, and a computer game designer which career would you most likely apply concepts fr
Elden [556K]
A computer game designer.
5 0
3 years ago
Read 2 more answers
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