4 years ago

Solve for θ if cosθ = 0.81. Round answer to the nearest degree.

Mathematics

1 answer:

natta225 [31]4 years ago

4 0

Answer:

the answer is 36 degrees

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plz help 20 points!!! The length of the Titanic was 882 feet. Porter's history class is building a model of the Titanic. The mod

algol [13]

8+1/82, 882/100 so you get 8 and 1/82

5 0

4 years ago

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The following estimated regression equation based on 30 observations was presented. ŷ = 17.6 + 3.8x1 − 2.3x2 + 7.6x3 + 2.7x4 The

trapecia [35]

Answer:

a) = 0.9739

b) = 0.969

c) option A is correct

Step-by-step explanation:

Given that:

sample size n = 30

SST = 1803

SSR = 1756

$R^2 = \dfrac{SSR}{SST} \\ \\ R ^2 = \dfrac{1756}{1803} \\ \\ \mathbf{R^2 =0.9739}$

The adjusted $R_a^2$ is computed as:

$R_a^2 = 1 - (\dfrac{n-1}{n-p})(1-R^2)$

where;

$p = k+1 \\ p= 4+1 = 5$

$R_a^2 = 1 - (\dfrac{30-1}{30-5})(1-0.9739)$

$R_a^2 = 1 - (\dfrac{29}{25})(0.0261)$

$R_a^2 = 1 - (1.16)(0.0261)$

$R_a^2 = 1 -0.030276$

$\mathbf{R_a^2 \simeq 0.969}$

7 0

3 years ago

11.

yKpoI14uk [10]

$\\ \tt\leadsto tan\theta=\dfrac{Perpendicular}{Base}$

$\\ \tt\leadsto tan29=\dfrac{h}{400}$

$\\ \tt\leadsto h=400tan29$

$\\ \tt\leadsto h=221.7ft$

6 0

2 years ago

Read 2 more answers

Which of the following could be the number shown on the number line?

lorasvet [3.4K]

I think that may be a trick question because all the the numbers can be on the number line

4 0

3 years ago

What is the value of the expression when a = 2, b = 6, and c = 5?

vichka [17]

Answer:

Step-by-step explanation:

7b−4a+6c2

a=2

b=6

c=5

7b-4a+6c2

7x6 - 4x2 + 6x5x2

42-8+60

using Bodmas, we add first

42+52=94

the answer is not in the options, kindly review if theres a mistake in the question

8 0

3 years ago