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Stels [109]
3 years ago
14

A climber who is 6 feet tall, casts a shadow that is 20 feet tall, at the same time that a tree casts a shadow which is 90 feet

long. How tall is the tree? (Type your answer as a whole number followed by the unit abbreviation, like this example: 12 ft.)
Mathematics
1 answer:
Sergio039 [100]3 years ago
3 0
The tree is 76ft. long
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Explain how you find it
aliina [53]

Answer:

x = 39

Step-by-step explanation:

there is a theorem that states that the midsegment in a trapezoid is equal to the sum of the bases divided by two

so, (36 + 42)/2 = x

36 + 42 = 78

78/2 = 39

8 0
3 years ago
Simplify by combining like terms: -4x - 2y - 7x - 8y
Sav [38]

Step-by-step explanation:

Solving like terms

-4x - 7x - 2y -8y

-11x - 10y

3 0
3 years ago
Find the midpoint of the segment with the given endpoint M(-2,1) and N (-3,2)
Aleks04 [339]
(-2,1)
(-2.5,1.5)
(-3,2)
3 0
3 years ago
0. Completa:<br>4.520.389 = 4__ +5CM + __+__+__+__+__<br>​
stira [4]

Answer:

<h2>4,520,389 = 4M + 5CM + 2DM + 3C + 8D + 9U</h2>

Step-by-step explanation:

In this proble, we defined:

  • D represents tens.
  • C represents hundreds.
  • M represents millions.
  • U is units.

So, the given number is 4,520,389, where we need to state the proper variable according to the position of each digit and its value.

4,520,389 = 4M + 5CM + 2DM + 3C + 8D + 9U

In words, the first term represents 4 millions, the second term represents 5 hundred thousands, the third term represents twenty thousands, the fourth term represents three hundreds, the fifth term represents eighty and the las term represents 9 units.

4 0
3 years ago
Is the centre of a circle always equal distance from all points on the circumference? and why
AleksandrR [38]

Answer:

Yes, the center of a circle is always and always equidistant from all the points on circumference because that is because what a circle is called. The distance from the center of the circle to the circumference is called the radius and it is constant for any particular circle.

7 0
3 years ago
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