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ohaa [14]
3 years ago
10

HELP ASAP!!!!!! please show work too! tysm!

Mathematics
2 answers:
kari74 [83]3 years ago
5 0

Answer:

<u>Option A  9/25 </u>is correct.

Step-by-step explanation:

so his data shows that the yellow balloon was chosen 18 times out of 50 so it is a 18/50.

now if we simplify that we get 9/25.

Have a nice day!

solmaris [256]3 years ago
3 0

Answer:

9/50

Step-by-step explanation:

18/100 they will both be divided by two 18 divided by two is 9 and 100 divided by two is 50.2 is the only number both can be divided by.

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Two poles are connected by a wire that is also connected to the ground. The first pole is 18 ft tall and the second pole is 24 f
9966 [12]

Answer:

  72 feet from the shorter pole

Step-by-step explanation:

The anchor point that minimizes the total wire length is one that divides the distance between the poles in the same proportion as the pole heights. That is, the two created triangles will be similar.

The shorter pole height as a fraction of the total pole height is ...

  18/(18+24) = 3/7

so the anchor distance from the shorter pole as a fraction of the total distance between poles will be the same:

  d/168 = 3/7

  d = 168·(3/7) = 72

The wire should be anchored 72 feet from the 18 ft pole.

_____

<em>Comment on the problem</em>

This is equivalent to asking, "where do I place a mirror on the ground so I can see the top of the other pole by looking in the mirror from the top of one pole?" Such a question is answered by reflecting one pole across the plane of the ground and drawing a straight line from its image location to the top of the other pole. Where the line intersects the plane of the ground is where the mirror (or anchor point) should be placed. The "similar triangle" description above is essentially the same approach.

__

Alternatively, you can write an equation for the length (L) of the wire as a function of the location of the anchor point:

  L = √(18²+x²) + √(24² +(168-x)²)

and then differentiate with respect to x and find the value that makes the derivative zero. That seems much more complicated and error-prone, but it gives the same answer.

7 0
3 years ago
Which one is it ? I need help<br> 1. 60<br> 2. 55<br> 3. 65<br> 4. 180
Alexeev081 [22]
The answer should be 55
6 0
3 years ago
Read 2 more answers
In a multiplication problem, what are the numbers called that are multiplied together?
galben [10]

The factors are the numbers being multiplied together

6 0
4 years ago
Read 2 more answers
Simplify the expression. Write your answer as a power.<br><br> (−5/7)^8⋅(−5/7)^9
dem82 [27]

Answer: (-\frac{5}{7})^{17}

Step-by-step explanation:

The expression can be simplified by applying the a properties of exponents, specifically the Product of powers, which states that:

(b^a)(b^c)=b^{(a+c)

Where b is the base and a and c are exponents.

 Then simplify it by rewriting the base (-\frac{5}{7}) and adding the exponents of the expression (8 and 9).

You will get the expression simplified and written as a power:

(-\frac{5}{7})^8(-\frac{5}{7})^9=(-\frac{5}{7})^{(8+9)}=(-\frac{5}{7})^{17}

3 0
4 years ago
8) T
saveliy_v [14]

Answer:

independent and 3/8

Step-by-step explanation:

independent because you didn't take another one out

6/16 which equals to 3/8

i may be wrong on this one

7 0
4 years ago
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