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3 years ago

5

Trigonometry... hellpp plzzz

2 answers:

rjkz [21]3 years ago

8 0

Answer:

17.1 degrees

Step-by-step explanation:

This is a tangent question because angle XYZ is adjacent to 13 and opposite of 4. This means that we will have to use opposite/adjacent. This is very simple if you know the formula. Just plug those numbers in to get 4/13 = 0.3076923076923077. However, now we need to find it in degrees. If you have an inverse calculator near you, you would plug it in to get about 17.10, which rounds to 17.1.

Softa [21]3 years ago

8 0

Answer:

<h2>73°</h2>

Step-by-step explanation:

$Opposite = 13cm\\Adjacent = 4cm\\\alpha =?\\Using SOHCAHTOA ;\\Tan \alpha = \frac{opp}{adj} \\Tan \alpha =\frac{13}{4} \\\alpha =Tan^-^1=\frac{13}{4} \\\alpha = 72.89\\=73\°$

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Solve for x: −2(x + 3) = −2(x + 1) − 4. (1 point) a 2 b 3 c All real numbers d No solution

Fofino [41]

-2(x + 3) = -2(x + 1) - 4

-2x - 6 = -2x - 2 - 4 <em>distributed -2 on the left and on the right</em>

-2x - 6 = -2x - 6

<u>+2x </u> <u>+2x </u>

-6 = -6

TRUE

Since this is a true statement, there are infinite solutions (aka All Real Numbers)

Answer: C

8 0

3 years ago

An experiment consists of choosing objects without regards to order. Determine the size of the sample space when you choose the

sdas [7]

Answer:

a

$n= 75, 582$

b

$n= 2300$

c

$n = 253$

Step-by-step explanation:

Generally the size of the sample sample space is mathematically represented as

$n = \left N } \atop {}} \right. C_r$

Where N is the total number of objects available and r is the number of objects to be selected

So for a, where N = 19 and r = 8

$n = \left 19 } \atop {}} \right. C_8 = \frac{19 !}{(19 - 8 )! 8!}$

$= \frac{19 *18 *17 *16 *15 *14 *13 *12 *11! }{11 ! \ 8!}$

$n= 75, 582$

For b Where N = 25 and r = 3

$n = \left 25 } \atop {}} \right. C_3 = \frac{25 !}{(19 - 3 )! 3!}$

$= \frac{25 *24 *23 *22 ! }{22 ! \ 3!}$

$n= 2300$

For c Where N = 23 and r = 2

$n = \left 23 } \atop {}} \right. C_2 = \frac{23 !}{(23 - 2 )! 2!}$

$= \frac{23 *22 *21! }{21 ! \ 3!}$

$n = 253$

4 0

4 years ago

FOR BRAINLIEST ANSWER THIS ASAP

mel-nik [20]

Answer:

-3x + y = -14

Step-by-step explanation:

m = 3/1 = 3

1 = 15 + b

b = -14

Y = 3x - 14

-3x + y = -14

5 0

3 years ago

What's the slope of the line?

mixas84 [53]

Answer:

The slope is -1

Step-by-step explanation:

It's decreasing which means it's negative and it decreases by 1 every time x increases by 1.

6 0

3 years ago

Can anyone help me out?

Lana71 [14]

Answer:

3y= -42

y= -14

Step-by-step explanation:

3y= -42

-42/3= -14

y= -14

3 0

3 years ago