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prisoha [69]
3 years ago
10

Quadrilateral ABCD is inscribed in circle O as shown below.

Mathematics
1 answer:
gogolik [260]3 years ago
5 0

Answer:

Step-by-step explanation:

180 - m∠1

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At noon a tree cast a shadow that is 40' long the distance from the top of the tree to the 1st tip of the shadow is 60' what is
Alla [95]
The Pythagorean theorem can be used for this.
.. (tip distance)² = (shadow length)² + (tree height)²
.. tree height = √((tip distance)² -(shadow length)²)
.. tree height = √((60 ft)² -(40 ft)²) = √(2000 ft²)
.. tree height ≈ 44.72 ft
5 0
3 years ago
The heights of apricot trees in an orchard are approximated by a normal distribution model with a mean of 18 feet and a standard
Ulleksa [173]

Answer:

0.9544

Step-by-step explanation:

We are given that mean=18 and standard deviation=1 and we have to find P(16<X<20).

P(16<X<20)=P(z1<Z<z2)

z1=(x1-mean)/standard deviation

z1=(16-18)/1=-2

z2=(x2-mean)/standard deviation

z2=(20-18)/1=2

P(16<X<20)=P(z1<Z<z2)=P(-2<Z<2)

P(16<X<20)=P(-2<Z<0)+P(0<Z<2)

P(16<X<20)=0.4772+0.4772=0.9544

The probability that the height of a tree is between 16 and 20 feet is 95.44%

5 0
3 years ago
Out of every 6 students surveyed, 1 listen to country music. At that rate, how many students in a school of 1200 listens to coun
Degger [83]

Answer: 200

Step-by-step explanation:

1200 divided by 6 = 200

6 0
3 years ago
What is the value of b so that the equation x^2+bx+5=0 will have x intercepts (-5,0) and (-1,0)
storchak [24]
Plug one intercepts: (-1)^2+(-1)b+5=0
(-5)^2+(-5)b+5=0
simplify: 6-b=0
30-5b=0
solve for b: 6=b
30/5=b
6 0
3 years ago
√2 as a decimal is approximately 1.4142. using this decimal, find the first four decimal places of the answer to the long divisi
Ainat [17]

Any number divided by 1 equals the original number.

See the attached picture:

3 0
3 years ago
Read 2 more answers
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