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Elanso [62]
3 years ago
14

What is 9(x + 8) + x(5+4)

Mathematics
2 answers:
lina2011 [118]3 years ago
7 0

Answer:

72+ 18x

Step-by-step explanation:

9x+72+5x+4x

72+ 18x

Softa [21]3 years ago
7 0
9(x + 8) + x(5 + 4)

9x + 72 + 5x + 4x

18x + 72

(If you have been asked to solve for x then also include the following, if not then only write what is above!)

18x + 72 = 0

18x = -72

x = -4
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Now given a rope hanging from the top of a pole. The end lying on the ground is 3 chi long. When tightly stretchedit is 8 chi fr
drek231 [11]

Answer:

Height of the pole = 9.17 chi.

Length of the rope = 12.17 chi.

Step-by-step explanation:

Given that the rope is hanging from the top of a pole having height x chi and the portion of the rope lying on the ground is 3 chi.

So, the length of the rope= x + 3 chi.

Let AB represents the pole in the figure, and one end of the rope is at point A.

When the rope is tightly stretched, let C be the other end of the rope as shown in the triangle.

The length of the rope = AC.

\Rightarrow AC=x+3 chi.

Distance from the bottom of the pole, point A, to the other end of the pole, point B, is 8 chi.

So, BC=8 chi.

As the triangle ABC is a right-angled triangle, so by using Pythagoras theorem,

AC^2= AB^2+BC^2

\Rightarrow (x+3)^2=x^2+8^2

\Rightarrow x^2+6x+9=x^2+64

\Rightarrow 6x=64-9=55

\Rightarrow x=55/6=9.17 chi.

Hence, the height of the pole, AB=x=9.17 chi,

and the length of the rope, x+3=9.17+3=12.17 chi.

8 0
3 years ago
Can any one solve this?<br> -23x + 345t - 234t + 34x
Lyrx [107]

Answer:

111 t  +  11 x

Step-by-step explanation:

8 0
3 years ago
Aaron drew the figure below for a school art project. What is the total area of the figure. Use the drop down menus to complete
Feliz [49]

Answer:

The trapezoid has a height of 3 inches, a shorter base measuring 2.75 inches, and a longer base measuring 4.25 inches. The total area of the entire figure is 33 square inches.

Step-by-step explanation:

I took the iready diagnostic :)

6 0
2 years ago
Read 2 more answers
A normal population has a mean m=33 and standard deviation s = 9.  What is the probability that a randomly chosen value will be
Sonja [21]
55 I actually don’t know the real answer
5 0
3 years ago
Find what percent 591 is of 2364
kati45 [8]
To find the percent you would divide 591 by 2364 
591/2364=.25
.25*100 = 25% 
Does that make sense?
3 0
3 years ago
Read 2 more answers
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