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NARA [144]
2 years ago
3

In a forest 4/7 of all the trees are conifer and the rest are leaf-bearing. Among the leaf-bearing trees 7/15 are oak and 2/3 of

these oaks are new. There are 160 old oaks in the forest. How many trees in all are in the forest?
Mathematics
1 answer:
Vesnalui [34]2 years ago
7 0

(3/7) and (7/15) are oak.

(2/3)(7/15)(3/7)T are new oaks  

(1/3)(7/15)(3/7)T are old oaks  

------

(1/3)(7/15)(3/7)T = 160  

(1/15)T = 160  

I believe 160 x 15 - 2,400.

My best guess is there are 2,400 trees in the forest.

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Audrey has 400 songs on her MP3 player. Of these songs, 150 are by female vocalists, 75 are by male vocalists, and 175 are by gr
Nuetrik [128]

Probability for male = 75/400 = 3/16

Probability for groups = 175/400 = 7/16

Probability for female = 150/400 = 3/8

There is a 3/8 probability of the song being sung by a female vocalist.

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2 years ago
Which formula can be used to describe the sequence?
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Answer:

B

Step-by-step explanation:

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In the following diagram \overline{DE} \parallel \overline{FG}
Gnesinka [82]

Answer:

<x = 31°

Step-by-step explanation:

m<BCA = m<GCJ (vertical angles)

m<BCA = 59° (substitution)

Since line KL is perpendicular to line FG, the angle formed at point B is 90°.

Therefore, m<ABC = 90°

m<BAC + m<ABC + m<BCA = 180° (sum of triangle)

m<BAC + 90° + 59° = 180° (Substitution)

m<BAC + 149° = 180°

m<BAC = 180° - 149°

m<BAC = 31°

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Four friends agree to save money for a graduation road trip. They decide that
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Answer:

There will 7.75 by the end of may.

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All you have to do is multiply .25 to 31

Hoped this Helped

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2 years ago
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aleksley [76]
The correct answer would be 2x2+ 7x + 1, 3x2 + 8    and x2 + 36. These polynomials cannot be reduced to a lower degree where the factors are integers so they should be prime. The factors are as follows:

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5x2 – 10x + 5         1 and 1
3x2 + 8                     1.632993162i and - </span>1.632993162i<span>
4x2 – 25                  5/2 and -5/2
x2 + 36                    6i and -6i</span>
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2 years ago
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