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mariarad [96]
3 years ago
11

PLEASE HURRY!!!! 20 POINTS simplify the following expression by combining like terms: 4x + 16y - x + 3y​

Mathematics
1 answer:
Masja [62]3 years ago
3 0

Answer:

3x + 19y is the answer

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2. Find the value of x and y rounded to the nearest tenth.
SVETLANKA909090 [29]

Using relations in a right triangle, it is found that the values of x and y are given by: x = 24, y = 46.4, given by option a.

<h3>What are the relations in a right triangle?</h3>

The relations in a right triangle are given as follows:

  • The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.
  • The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.
  • The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

First, we start with the vertical line h that divides y, that is <u>opposite to an angle of 30º, with hypotenuse 34</u>, hence:

sin(30º) = h/34

0.5 = h/34

h = 17.

Then, h is opposite to an angle of 45º, while the hypotenuse is x, hence:

\sin{45^\circ} = \frac{17}{x}

x = \frac{17}{\sin{45^\circ}}

x = 24.

y is divided into two segments.

  • The first is the adjacent to the angle of 30º, while the hypotenuse is 34.
  • The second is adjacent to the angle of 45º, while the hypotenuse is 24.

Then:

\cos{30^\circ} = \frac{y_1}{34}

y_1 = 34\cos{30^\circ} = 29.4

\cos{45^\circ} = \frac{y_2}{24}

y_2 = 24\cos{45^\circ} = 17

Then, the value of y is given by:

y = y_1 + y_2 = 29.4 + 17 = 46.4.

More can be learned about relations in a right triangle at brainly.com/question/26396675

#SPJ1

4 0
2 years ago
The range of F(x) = 6 * 3x is all positive real numbers.
sergij07 [2.7K]
Yes it isssss !!!!!!!!!!!!!
8 0
4 years ago
Find the area of the circle. Round your answer to the nearest hundredth.
Free_Kalibri [48]

Answer:

If pi is used as pi 113.1

or

If 3.14 is used as pi 113.04

Step-by-step explanation:

A = pi(r)²

8 0
3 years ago
A portion of John Locke's time card is shown below. How many hours did he work for the week?
Paraphin [41]

Answer:

40

Step-by-step explanation:

it's 8+8+8+7+9 so it's gonna be 40

3 0
2 years ago
If f varies inversely as g, find f when g= -6.<br> F= 4 when g= -6<br> F=
Naddik [55]

Step-by-step explanation:

  • f=g

f=1/g

4=1/-6

=-24

find f

f=1/-6

4 0
3 years ago
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