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Alik [6]
2 years ago
15

Answer this and get 50 points.​

Mathematics
2 answers:
wolverine [178]2 years ago
5 0

Answer:

109°

Step-by-step explanation:

Consider an isosceles triangle by joining the end points of tye chord to the centre

Base angles of the traingle:

(180 - 142)/2 = 19

The edge of the triangle makes 90° with the circumference

Angle x = 19 + 90 = 109°

Pavel [41]2 years ago
3 0

Answer:

As shown in picture, the circle is divided into 2 arcs, one of them is 142 deg.

Then the other one A is 360 - 142 = 218 deg (property of sum of all arcs on circle).

As the property of angle created by a tangent line:

x = (1/2) x arc A = (1/2) x 218 = 109 deg

Hope this helps!

:)

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What is the the decrease in percentage from 248 to 200
Mazyrski [523]

Answer:

24%

Step-by-step explanation:

48/248*100

=24%

original 248

new. 200

difference 48

6 0
3 years ago
Stock Texas has a price of $156 per share when Bond Austin has a price of $23 per bond. Use an
spin [16.1K]

Answer:

I think the answer would be $466.24.

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3 years ago
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A lamp post with a height of 12 ft casts a shadow of 6 ft. A fire hydrant near it casts a shadow that is 1.5 ft long. How tall i
alex41 [277]

Answer:

3ft

Step-by-step explanation:

We are given that

Height of lamp, h=12ft

Height of shadow, l=6ft

Height of shadow of hydrant, l'=1.5ft

Let height of hydrant=h'

We have to find the height of fire hydrant.

All right triangles are similar

When two triangles are similar then, the ratio of their corresponding sides are equal.

Using the property

\frac{h}{h'}=\frac{l}{l'}

\frac{12}{h'}=\frac{6}{1.5}

h'=\frac{12\times 1.5}{6}

h'=3ft

Hence, the height of fire hydrant=3 ft

3 0
3 years ago
The variables a, b, and c represent polynomials where a = x 1, b = x2 2x − 1, and c = 2x. what is ab c in simplest form?
inna [77]
If you would like to write a * b + c in simplest form, you can do this using the following steps:

a = x + 1
b = x^2 + 2x - 1
c = 2x
a * b + c = (x + 1) * (x^2 + 2x - 1) + 2x = x^3 + 2x^2 - x + x^2 + 2x - 1 + 2x = x^3 + 3x^2 + 3x - 1

The correct result would be x^3 + 3x^2 + 3x - 1.




7 0
3 years ago
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The capacity of an elevator is 12 people or 2088 pounds. the capacity will be exceeded if 12 people have weights with a mean gre
boyakko [2]

suppose the people have weights that are normally distributed with a mean of 177 lb and a standard deviation of 26 lb.

Find the probability that if a person is randomly selected, his weight will be greater than 174 pounds?

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We find z-score using given mean and standard deviation

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Probability (z>-0.11538) = 1 - 0.4562 (use normal distribution table)

= 0.5438

P(weight will be greater than 174 lb) = 0.5438

8 0
3 years ago
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