2 years ago

Which elephants weight is 2.86 tons when rounded to the nearest hundredth.

Mathematics

1 answer:

Naily [24]2 years ago

5 0

Answer:

An elephant

Step-by-step explanation:

2.86 tons is the weight of an elephant.

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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

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3 years ago

Faces: <br> Edges: <br> Vertices:

sesenic [268]

Answer:

Below.

Step-by-step explanation:

This is a square based pyramid.

There are:

5 Faces (one on the base and 4 side faces)

8 edges. ( 4 on base and 4 on side)

5 vertices (4 on the base and one on the top)

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11 months ago

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Which number is irrational? A) 16.5% B) 0.0675 Eliminate C) 8 3/4 D) π

iren2701 [21]

I would say A. 16.5 %

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2 years ago

Answer this question please!

fomenos

$r_{2} = \frac{F_1 \sin(\theta)}{F_{2} \sin(\psi)}$

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2 years ago

Question 4 of 10

nadezda [96]

Answer:

<A=<D

Step-by-step explanation:

I just took the quiz

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2 years ago

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