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Snowcat [4.5K]
3 years ago
7

Find the value of x. Round the length to the nearest tenth.

Mathematics
2 answers:
lara [203]3 years ago
3 0
I am not sure but i think its 7.1cm
ad-work [718]3 years ago
3 0

Answer:

x = 9.2 cm

Step-by-step explanation:

We can use a trigonometric relation in order to find the correct answer. In this case, since we know the opposite side to the angle and we want to know the adjacent side, the most convenient function is the tangent:

tan(40°) = opposite/adjacent  or  opposite = tan(40°)*adjacent

Substituting the adjacent side value and the tan(40°), we get:

x = 0.839 * (11 cm) = 9.229 cm (approximately 9.2 cm)

Therefore, the answer is 9.2 cm.

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choli [55]
4.6 meters per second was her walking speed
3 0
3 years ago
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What is the perimeter of the polygon?
mr_godi [17]
Welp. I sure hope you like the Pythagorean theorem...
Top line:
One point is (-2,-2) while the other is (3,-3)
Thus the distance in between is sqrt((3-(-2))^2+(-3-(-2))^2)=sqrt(5^2+(-1)^2)=sqrt(26)
Most right line:
One point is (4,-6) while the other is (3,-3)
Thus the distance in between is sqrt((3-4)^2+(-3-(-6))^2)=sqrt((-1)^2+3^2)=sqrt(10)
Most bottom line:
One point is (1,-6) while the other is (4,-6)
Thus the distance in between is sqrt(4-1)^2+(-6-(-6))^2)=sqrt(3^2+0^2)=sqrt(9)=3
Most bottom left line:
One point is (1,-6) while the other is (-2,-4)
Thus the distance in between is sqrt((1-(-2))^2+(-6-(-4))^2)=sqrt(3^2+(-2)^2)=sqrt(13)
Lastly the most left line:
One point is (-2,-2) while the other is (-2,-4)
Thus the distance in between is sqrt((-2-(-2))^2+(-2-(-4))^2)=sqrt(0^2+(2)^2)=sqrt(4)=2
Thus to find the perimeter, we add up all the sides to get
sqrt(26)+sqrt(10)+3+sqrt(13)+2=16.8668 or B




6 0
3 years ago
Help please!!! I really don’t know how to do this!
AysviL [449]

Answer:

I'm going to do 1 as an example and using what I've taught you, you have to do the rest. Hope my explanation helps.

Step-by-step explanation:

We are given the points (-2, -4) and (-1, -1)

We need to find the slope.

The equation to do so is y2 - y1 / x2 - x1

lest say:

-2 is x1

-4 is y1

-1 is x2

-1 is y2

-1 - (-4) / -1 - (-2)

3/1 = 3

slope (m) = 3

We already know the y-intercept is 2

The equation of a line is y = mx + b

For this problem we just have to substitute what we already know.

y = (slope)x + y-intercept

y = 3x + 2

*TIP*

If the y-intercept is negative, let's say: b = -5  (using slope 8)

the equation will be y = 8x - 5

Hope this helps. I wish you all the best. :)

5 0
2 years ago
William sunk 25% of the shots he made on the basket. If he threw 80 shots, how many did he miss?
Umnica [9.8K]

Answer:

Step-by-step explanation:

He missed 20 shots

Write 25% as 25100.

25100 of 80 = 25100 × 80.

Therefore, the answer is 20.

4 0
2 years ago
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Answer the equations:<br> 1. 4x+16<br> 2. 8 + 4x+8<br> 3. x+8+x<br> 4. 4+2x+4<br> 5. x+1+2x+8
andrew-mc [135]

Answer:

Answers below

Step-by-step explanation:

1)  4 (x+4)

2) 4x + 16

3) 2x+8

4) 2x+8

5) 3x+9

3 0
3 years ago
Read 2 more answers
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