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OLga [1]
2 years ago
13

Find the value of xxx in the isosceles triangle shown below. Choose 1 answer:

Mathematics
1 answer:
Varvara68 [4.7K]2 years ago
4 0

Answer:

x=12

Step-by-step explanation:

The isosceles triangle consist of two right angle triangle of the same dimensions.

Let the unknown side of the right angle triangle=y

x=y+y

x=2y

Right angle triangle

c^2=a^2+b^2

c=10

a=8

b=y

c^2-a^2=b^2

10^2-8^2=y^2

100-64=y^2

36=y^2

y=√36

=6

y=6

Recall

x=2y

Substitute the value of y into the equation

x=2(6)

=12

Therefore,

x=12

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a plane rises from take-off and flies at an angle of 6 with the horizontal runway. When it has gained 900 feet, find the distanc
Vladimir79 [104]

Answer:

d=8610.1ft

Step-by-step explanation:

From the question we are told that:

Angle \theta =6\textdegree

Height of plane h=900ft

Generally the trigonometric equation for distance flown d is mathematically given by

  sin \theta=\frac{h}{d}

Therefore

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6 0
2 years ago
Item 14
dsp73

Answer:

13/21

Step-by-step explanation:

5 0
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SHOW YOUR WORK!!! Marking best answer as brainliest :))
Wewaii [24]

Answer:

-25

Step-by-step explanation:

You must first pick two points.  I picked the points of (4, 400) and (8, 300).  You can pick different points and still get the right answer.

Subtract the y's and the x's.  Divide the difference of y by the difference of x.

400 - 300 = 100

4 - 8 = -4

100/-4 = -25

The slope, or rate of change, is -25.

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3 years ago
Which of the following can cause a communicable disease
velikii [3]
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8 0
3 years ago
Alison wants to find out how much time people spend reading books. She is going to use a questionnaire.
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5 0
2 years ago
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