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3 years ago

Whats the answer for this question

Mathematics

2 answers:

dezoksy [38]3 years ago

8 0

Answer:

0.00939495805 about 0.01

Step-by-step explanation:

basically solving for arccos(8.5/9.9) in degrees, had to run through calculator

Afina-wow [57]3 years ago

5 0

So you would use SOH-CAH-TOA and you get cos so enter cos(x)= 8.5 Once you enter this into the calc You should get 30.8
———
9.9

Answer: 31 degrees

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Answer:

Step-by-step explanation:

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3 years ago

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Ipatiy [6.2K]

The answer to your questions is 3.12

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4 years ago

over three successive Collins build 1/3, 1/5 and 1/4 of the brickwork of his new garage. What fraction must he complete on the f

garri49 [273]

Answer:

1 - 1/3 - 1/4 - 1/5

Step-by-step explanation:

Let's take it one step at a time.

Day 1 he completes 1/3 of the garage, so you subtract 1/3 from 1 which means he left 2/3

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3 years ago

What is the determinant of the coefficient matrix of the system

vovikov84 [41]

The coefficient matrix is

$\begin{bmatrix}-1&-1&2\\3&2&-1\\4&4&-8\end{bmatrix}$

Its determinant is then

$\det\begin{bmatrix}-1&-1&2\\3&2&-1\\4&4&-8\end{bmatrix}=-4\det\begin{bmatrix}-1&-1&2\\3&2&-1\\-1&-1&2\end{bmatrix}$

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3 years ago

[(√4 + 3)2 – 9] / (√9 – 1)3 * 2

Ket [755]

Answer:

$\frac{1}{12}$

Step-by-step explanation:

$\frac{(\sqrt{4} + 3)2 - 9}{ (\sqrt{9} - 1)3 * 2}=\frac{(2+3)2-9}{(3-1)6}=\frac{10-9}{2*6}=\frac{1}{12}$

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3 years ago