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3 years ago

MATH HELP

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

8 0

Answer:

10.8 units

Step-by-step explanation:

You need to use trig. equations for this problem, since it gives you one sides and an angle for a right triangle before asking you for the third side.

In this situation, they give you the adjacent side relative to the 34 degree angle and asks you to solve for the opposite side. Therefore you need to use tangent, since it's the only equation in which you don't need the hypotenuse.

The tangent rule states:

Tan(x) = opposite / adjacent

So:

Tan(34) = x / 16

x = (tan(34)) * 16

x = (0.67451) * (16) = 10.7921

Rounding to the nearest tenth, you get 10.8

damaskus [11]3 years ago

5 0

Answer:

10.8

Step-by-step explanation:

Law of Sines!

---------------------------------------------------------------Following the law of sines you get

x / sin34 = 16 / sin56

x / 0.559192903 = 16 / 0.829037573

x / 0.559192903 = 19.2994872

x = 10.7921363

x=10.8

Hope this Helps!

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White raven [17]

Answer:

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3 years ago

Can someone plzzz help me with this math practice paper

weeeeeb [17]

Answer:

45 degrees for 8

135 degrees for 9

48 for 10

Yes a square is a rectangle

Next ones.

Sut = 21 becuase x=5

Step-by-step explanation:

Last one:

x^2 + 8 = 3x + 36

- 8 - 8

x^2 = 3x + 28

-3x -3x

x^2 - 3x = 28

(x · x) - 3x = 28.

This was were a little guess work was used,

I found that any number lower than 7 is less than 28 when pluged into x and any above is higher.

Hence x = 7

x^2 + 8 = 7^2 + 8

7 x 7 = 49. 49 + 8 = 57.

and

3x+36 = 7 x 3 + 36

7x3 = 21. 21 + 36 = 57.

Both lines are equal so x is indeed 7.

The RSTU rectangle

3x+6 = 5x-4

+4 +4

3x+10 = 5x

-3x -3x

10 = 2x

10/2 = 5

5 = x or x = 5

plug it in now

3 x 5 = 15. 15 + 6 = 21

and

5 x 5 = 25. 25 - 4 = 21

so x = 5

8-10

QRS = 45 degrees because bisects the square with a diagonal line from corner to corner

PTQ is a 135 degrees because it is wider than a 90 degrees angle and meets both upper corner from the middle of the square making it 135 degrees.

SQ = 48 because RT = 24 and RT is half the length of SQ meaning its length would be 48

SQ= 24 degrees because RT = 24 and if RT was to continue on the line it is on it will reach the length of SQ.

3 0

3 years ago

I need the answer quick I have a time limit ( I only get an hour to complete the assignment heh )

Sedaia [141]

Answer:

C (the third table, from the second picture).

Step-by-step explanation:

First, we need to find the slope of the graph.

Two conspicuous points are (0, -3) and (2, 1).

The slope is: (1 - -3) / (2 - 0) = (1 + 3) / 2 = 4 / 2 = 2.

A: In the table, the y-values increase by 2, while the x-values increase by 4. 2 / 4 = 1 / 2 = 0.5. The slope is not the same as the graph.

B: In the table, the y-values decrease by 2, while the x-values increase by 4. -2 / 4 = -1 / 2 = -0.5. The slope is not the same as the graph.

C: In the table, the y-values increase by 4, while the x-values increase by 2. 4 / 2 = 2 / 1 = 2. The slope is the same as the graph, so C is your answer.

D: In the table, the y-values decrease by 4, while the x-values increase by 2. -4 / 2 = -2 / 1 = -2. The slope is not the same as the graph.

Hope this helps!

4 0

3 years ago

What is the X<br> 3x +15 and 2x + 20

Georgia [21]

Answer:

Step-by-step explanation:

What is the X

3x +15 and 2x + 20

assuming that the question is an equation

3x + 15 = 2x + 20

3x - 2x = 20 - 15

x = 5

-----------------

check

3 * 5 + 15 = 2 * 5 + 20

30 = 30

the answer is good

5 0

2 years ago

HELP ASAP

vova2212 [387]

Answer:

1. A. 4 terms

There are 4 different values in the expression, so therefore there are 4 terms.

2. D. 3x^2 + 6x + 10

To get the answer...

start with the original expression: 3x^2 + x + 10 + 5x

add the like terms together, in this case you'd add x + 5x

you'll get: 3x^2 + 6x + 10

I hope I could help :)

7 0

3 years ago

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