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Stolb23 [73]
3 years ago
15

Which of the following inequalities is true?

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0
11 < square root of 85 because that is 9.219... ~JZ
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Flying with the wind a plane went 198 mph. Flying into the same wind the plane only went 162 mph. Find the speed of the plane in
olganol [36]

Answer: speed of plane in still air is 180 miles per hour

speed of the wind is 18 miles per hour

Step-by-step explanation:

Flying with the wind, the plane went 198 miles per hour. This means if was flying in the same direction with the wind. This is same as the speed in still air because there was no opposition from the wind.

Flying into the same wind the plane only went 162 mph. This means that the plane flew against the wind

Let x = the speed of the plane

Let y = the speed of the wind

when flying with the wind,

x + y = 198 - - - - - - -1

When flying against the wind,

x - y = 162 - - - - - - - -2

Subtracting equation 2 from equation 1,

y - - y = 198 - 162

2y = 36

y = 36/2 = 18 miles per hour

x = 198 - y = 198 -18

x = 180 miles per hour

4 0
3 years ago
What are the missing sides in the triangle written as integers or as decimals rounded to the
Alecsey [184]

The value of x is 12.7 and the value of y is 9. The correct option is the third option x = 12.7; y = 9

<h3>Trigonometry </h3>

From the question, we are to determine the values of the missing sides

From the diagram,

Opposite = 9

Adjacent = y

Hypotenuse = x

Included angle = 45°

Using SOH CAH TOA, we can write that

tan 45^\circ= \frac{9}{y}

1 = \frac{9}{y}

∴ y = 9

Since the triangle is a right triangle, we can write that

x² = y² + 9² (<em>Pythagorean theorem</em>)

x² = 9² + 9²

x² = 81 + 81

x² = 162

x = √162

x = 12.7

Hence, the value of x is 12.7 and the value of y is 9. The correct option is the third option x = 12.7; y = 9

Learn more on Trigonometry here: brainly.com/question/24259483

#SPJ1

5 0
1 year ago
Martha has 20 more Oreos than Theo. Cla
poizon [28]

Answer: 20+x

Step-by-step explanation:

Let's petend that x=20

when we add that it us 40 so that means that martha has 40 oreos

this was answer by an unknowed sic grader

8 0
3 years ago
What is the radius of the circle whose equation is x^2 + y^2 = 8
gogolik [260]
√8

for the equations of circles: x²+y²= (radius)²
5 0
2 years ago
91/100 in simplest form
otez555 [7]
91/100 is already in simplest form
3 0
3 years ago
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