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2 years ago

I NEED HELP PLEASE!! what is the angle of elevation??

Mathematics

2 answers:

Westkost [7]2 years ago

7 0

Answer:

An object as seen by an observer is the angle between the horizontal and the line from the object to the observer's eye (the line of sight).

Step-by-step explanation:

ira [324]2 years ago

5 0

Answer:

IONK

Step-by-step explanation:

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Describe the relationship betw

GalinKa [24]

Answer:

108, 324, 972

Step-by-step explanation:

4 (*3)

ans. (*3)

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3 years ago

Read 2 more answers

Jean's bedroom is 14 feet by 13 feet. She has chosen a carpet which costs $28.95 per square yard. This includes installation.

Svet_ta [14]

14x13= 182 sq ft
183 sq ft = 20.22 sq yd
28.95x20.22=
5853690
move the decimal four spaces from the right and round up

585.37 is the answer

6 0

3 years ago

A dieter believes that the average number of calories in a homemade peanut better cookie is more than the average number of calo

zalisa [80]

The confidence interval formula is computed by:

Xbar ± Z s/ sqrt (n)

Where:

Xbar is the mean

Z is the z value

S is the standard deviation

N is the number of samples

So our given are:

90% confidence interval with a z value of 1.645

Sample size 40, 45

Mean 180, 179

Standard deviation 2, 4

So plugging that information in the data will give us a confidence interval:

For 1:

Xbar ± Z s/ sqrt (n)

= 180 ± 1.645 (2 / sqrt (40))

= 180 ± 1.645 (0.316227766)

= 180 ± 0.520194675

= 179.48, 180.52

For 2:

Xbar ± Z s/ sqrt (n)

= 179 ± 1.645 (4 / sqrt (45))

therefore, the answer is letter b

8 0

3 years ago

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t

Marizza181 [45]

Answer:

$a_n = -2 + n$ is an expression which describe the given sequence

Step-by-step explanation:

Arithmetic sequence states that a sequence where the difference between each successive pair of terms is the same.

The general rule for the arithmetic sequence is given by;

$a_n =a_1+(n-1)d$ ......[1]

where

$a_1$ represents the first term

d represents the common difference

and n is the number of terms;

Given sequence: -1 , 0 , 1 , 2 , .....

This is an arithmetic sequence with common difference

Since,

0-(-1) = 1

1-0 =1

2-1 = 1 ....

Here, $a_1 = -1$

Substitute the value of $a_1 = -1$ , d =1 in [1] we get

$a_n = -1 +(n-1)(1)$

$a_n = -1 + n -1 = -2 +n$

Therefore,an expression which describe the given sequence is, $a_n = -2 + n$

6 0

2 years ago

What is the correlation for a linear model of this data rounded to the nearest hundredth

GaryK [48]

I think it's a positive correlation because both the x and y values are increasing

4 0

2 years ago