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melomori [17]
3 years ago
10

Choices; a) 21.8° b) 35.2° c) 45.1°

Mathematics
1 answer:
kifflom [539]3 years ago
6 0

Answer:

\displaystyle a) \: {x}^{ \circ}  =  21.8 ^{ \circ}

Step-by-step explanation:

we are given opposite and adjacent

we want to figure out x°

remember that,

\displaystyle \: \tan( \theta)  =  \frac{opp}{adj}

where our opp is 5 and adj is 12.5

let \theta be x°

so

\displaystyle \: \tan(  {x}^{ \circ} )  =  \frac{5}{12.5}

\displaystyle \: {x}^{ \circ}  =  \arctan \left( \frac{5}{12.5}  \right)

by using calculator

\displaystyle \: {x}^{ \circ}  =  21.8

hence,

our answer is a

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Solve: -6n + 5 &lt; 11<br> Wich graph shows the solution?
tangare [24]

Answer:

The last graph

Step-by-step explanation:

You have to solve for n that is where you get the plot then you have to remember in inequalities if you divide by a negative you have to switch the sign. The inequality is not a less than or equal to or greater than or equal to so the plot would be an open circle. Because we switched the sign it goes down the left side of the graph because of the direction the sign is pointing to.

8 0
3 years ago
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LMN and QRS are similar. Find the value of X.​
Trava [24]

x+5/30 = 50/75

x+5/10 = 2

x+5 = 20

x = 15

5 0
3 years ago
Anybody know how to do # 14, 15, and 16? Would also be nice if yall told me if any of these were wrong
mote1985 [20]

Step-by-step explanation:

1. Right

2. Right

3. Right

4. Right

5. Right

6. Right

7. Its not properly visible sorry for this.

8. Its wrong

(\frac{1}{3} ) {}^{2}  =  \frac{1}{9}

9. Right

10. Its wrong

0.5 {}^{3}  = 0.125

11. Right

12. Its wrong.... Bcz square of minus is plus

- 9 {}^{2}  = 81

13. Right

14. According to the BODMAS rule..

15 - 7 \times 2 +  {2}^{3}

15 - 14 + 8

1 + 8 = 9

15.

(11 - 8) {}^{2}  - 2 \times 6

3 {}^{2}  - 12

9 - 12 =  - 3

16.

12 +  \frac{ {9}^{2} }{3}

12 +  \frac{81}{3}

12 + 27 = 39

<h3>Hope this helps u </h3>

... ✌️❤️

7 0
3 years ago
Find the value of x
Lostsunrise [7]

Step-by-step explanation:

In a right angle triangle one angle is 90°

w.k.t sum of angles in a triangle is 180°

thus, 2x+15+x+90°=180°

3x+105°=180°

3x=75°

x= 75/3=25°

Hope this helps you.

7 0
3 years ago
X-23 / x^2 -x- 20 - 2/5-x
alexira [117]

By simplifying \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\] . This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

The Simplifying Algorithm is a wonderful way to simplify complex mathematics problems. It can be used to solve equations, convert fractions to decimals, and perform many other math operations. In this problem, the Simplifying Algorithm will help you reduce \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\]

Since two opposites add up to 0, remove them from the expression.

\[ - \frac{{23}}{{{x^2}}} - \frac{{102}}{5} - x\]

Write all numerators above the least common denominator 5x2

\[ - \frac{{115 + 102{x^2} + 5{x^3}}}{{5{x^2}}}\]

Use the commutative property to reorder the terms so that constants on the left

\[\frac{{ - 5{x^3} - 115 - 102{x^2}}}{{5{x^2}}}\]

Rearrange the terms

\[\frac{{ - 5{x^3} - 102{x^2} - 115}}{{5{x^2}}}\]

By reording the terms

\[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\]

Hence, by simplifying this equation, divide both numerator and denominator. This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

To learn more about simplifyication visit:

brainly.com/question/1542396

#SPJ1

7 0
1 year ago
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