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S_A_V [24]
3 years ago
5

Convert the angle 13°38'35" to decimal degrees and round to the nearest hundredth of a degree.

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
7 0
Algebraically:
13 + (38/60) + (35/3600) = 13. 6431 degrees

If you have a graphing calculator ( I am using a TI-84 plus Silver Edition):
13(press 2nd -> apps -> 1) 38 (press 2nd -> apps -> 2) 35 (press alpha -> +) = 13.6431

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a submarine ascended 3/8 mile and the descended .4 of a mile followed by another 2/5 mile descent, finally it rose .75 of a mile
shusha [124]

Do you still need the answer? lol.

5 0
4 years ago
Find the determinancof the matrix Q.
stepan [7]

Using a Laplace expansion along the first column, we have

\det Q=2\det\begin{bmatrix}2&1\\-1&6\end{bmatrix}+3\det\begin{bmatrix}3&4\\-1&6\end{bmatrix}+5\det\begin{bmatrix}3&4\\2&1\end{bmatrix}

The determinant of a 2x2 matrix is trivial,

\det\begin{bmatrix}a&b\\c&d\end{bmatrix}=ad-bc

So we have

\det Q=2\cdot13+3\cdot22+5\cdot(-5)=67

5 0
4 years ago
Last month you swam the 50 meter freestyle in 28.38 seconds. Today you swam it in 27.33 seconds. What is your percent of change?
Phantasy [73]

Answer:

The distance is the same(50 meters). So we will operate only with numbers 28.38 and 27.33.

The difference is 28.38-27.33=1.05

So the percent of change is (1.05/28.38)*100%≈3.7%

The answer is 3.7%

Step-by-step explanation:

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3 0
3 years ago
What is the answer to b.
zaharov [31]

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3 0
4 years ago
Read 2 more answers
Please help me with this please!!!!!!
Masteriza [31]
Best Answer: Look at the discriminant of the quadratic equations to find the number and type of solutions. The discriminant is part of the quadratic formula underneath the square root sign: b^2 - 4ac. If it is positive, then there are two real solutions for that quadratic equation. If the discriminant is 0, then there is one real solution. If the discriminant is positive, then there are two imaginary solutions.

1.) x^2 - 18 = 0
a = 1, b = 0, c = -18

b^2 - 4ac
(0)^2 - 4(1)(-18)
72

ANSWER: 2 real solutions

2.) x^2 + 5x + 7 = 0
a = 1, b = 5, c = 7

b^2 - 4ac
(5)^2 - 4(1)(7)
25 - 28
-3

ANSWER: 0 real solutions


Hope this helps
8 0
3 years ago
Read 2 more answers
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