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balandron [24]
2 years ago
13

Which expression is equivalent 07x+y 0 7x-y

Mathematics
1 answer:
cestrela7 [59]2 years ago
3 0

Answer:

Dnndk

Step-by-step explanation:

Rmdm number 2

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A telephone pole has a wire attached to its top that is anchored to the ground. the distance from the bottom of the pole to the
kirza4 [7]

The height of the pole is 96 feet

In mathematics, the Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the legs a, b and the hypotenuse c, often called the Pythagorean equation:[1]

a^{2}+b^{2}=c^{2},

Create a diagram of the scenario first. You would have a right triangle with a hypotenuse (longest side) of h + 4, a longest leg of h - 68, and one leg of length h to represent the pole.

Set up the equation h^2 + (h - 68)^2 = (h + 4)^2 using the Pythagorean theorem (a^2 + b^2 = c^2).

h^2 + (h - 68)^2 = (h + 4)^2

On simplifying we get

h^2+h^2-136h+4624 = h^2+8h+16

2h^2-136h+4624=h^2+8h+16

h^2-144h+4608=0

Solving using quadratic formula

h_{1,\:2}=\frac{-\left(-144\right)\pm \sqrt{\left(-144\right)^2-4\cdot \:1\cdot \:4608}}{2\cdot \:1}  

h_1=\frac{-\left(-144\right)+48}{2\cdot \:1},\:h_2=\frac{-\left(-144\right)-48}{2\cdot \:1}

h1 = 96 feet , h2 = 48 feet

If height would have been 48 feet then the other side would have a negative value as as 48 - 68 = -20 .

Hence the height of the pole is 96 feet

Learn more about Pythagoras theorem here :

brainly.com/question/343682

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7 0
1 year ago
What is the length of the hypotenuse for a right triangle with legs of length 9 and 40?​
Step2247 [10]

Answer:

c = 41

Step-by-step explanation:

{c}^{2}  =  \sqrt{ {a}^{2} +  {b}^{2}  }

c =  \sqrt{ {a}^{2} +  {b}^{2}  }

c =  \sqrt{ {9}^{2} +  {40}^{2}  }

c =  \sqrt{81 + 1600}

c =  \sqrt{1681}

c = 41

6 0
2 years ago
Read 2 more answers
A pyramid with a rectangular base is stacked on top of rectangular prism. The height of the composite figure is 12 inches. The l
Arte-miy333 [17]

Answer:

Step-by-step explanation:

140 cubic inches

8 0
3 years ago
Read 2 more answers
A) how many 3/5s are in 1<br> b) use the answer to part A to find the number of 3/5s in 2
BabaBlast [244]
a)\frac{1}{\frac{3}{5}}=1*\frac{5}{3}=\frac{5}{3}\\\\&#10;There\ are\ 1\frac{2}{3}\ of\ \frac{3}{5}s\ in\ 1.\\\\&#10;b)\frac{2}{\frac{3}{5}}=2*\frac{5}{3}=\frac{10}{3}\\\\There\ are\ 3\frac{1}{3}\ of\ \frac{3}{5}s\ in\ 2.
5 0
3 years ago
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If students sit 4 per row on a rollercoaster, 6 students are left without a seat.
dlinn [17]

An expression is defined as a set of numbers, variables, and mathematical operations. The total number of students is 54.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Let the number of columns in the rollercoaster be represented by x.

If students sit 4 per row on a rollercoaster, 6 students are left without a seat. Therefore, the number of students can be written as,

Total number of students = 4x + 6

If they sit 6 per row, there are 3 rows left empty. Therefore, the total number of students can be written as,

Total number of students = 6(x-3)

The total number of students can be written as,

4x + 6 = 6(x - 3)

4x + 6 = 6x - 18

2x = 24

x = 12

Now, the total number of students in the class are,

4x + 6 = 4(12) + 6 = 54

Hence, the total number of students are 54.

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3 0
2 years ago
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