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likoan [24]
2 years ago
15

1. Trey just planted a small tree. He wanted to help it grow straight so he anchored the tree to the ground in three places usin

g equal lengths of wire. The wires are tied to the tree 8 feet above the base of the tree. If Trey anchored each wire to the ground 6 feet from the base of the tree, what length of wire, in feet, is required for each anchor?
Mathematics
1 answer:
Marina CMI [18]2 years ago
8 0

Answer:The correct answer is:

90 feet.

Explanation:

Each wire forms a right triangle with the tree and the ground. The height from the ground to the point on the tree the wire is attached to, 3 feet, is one leg. The length from the tree to where the wire is staked in the ground, 4 feet, is the other leg.

We use the Pythagorean theorem to find the hypotenuse: 3²+4²=c²; 9+16=c²; 25=c²; √25=√(c²); 5=c

This means each wire will be 5 feet long. There are 3 wires per tree, which gives us 5*3 = 15 feet. There are 6 tree, so this is 15*6 = 90 feet of wire.

Step-by-step explanation:

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Two perpendicular lines intersect on the -axis. The equation of one line is y- 4x-6=0. Determine the equation of the other line.
Kay [80]

Answer:

y = -\frac{1}{4}x + 6 or y = -\frac{1}{4}x - 0.375

Step-by-step explanation:

For 2 lines to be perpendicular, their slopes must be <u>negative reciprocals</u>. In order to find the perpendicular of y - 4x - 6 = 0:

SLOPE INTERCEPT FORM: y = 4x + 6

SLOPE OF LINE A: m=4

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<u>y-axis</u>

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<u>x-axis</u>

y-0=-\frac{1}{4}(x-1.5)

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7 0
3 years ago
11-5 practice volumes of pyramids and cones
Minchanka [31]

Answer:

Step-by-step explanation:

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4 0
3 years ago
2. The average age of my living grandparents is 80. My grandma is 81, how
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Answer:

79

Step-by-step explanation:

Hope it helps, good luck.

8 0
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