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pentagon [3]
3 years ago
7

Alright, here's one for Algebra:

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0
Let x= number rows
Then x + 5 = number of seats per row

x(x+5) = 126
X^2 + 5x = 126
x^2 + 5x -126 = 0; now factor or use quadratic:
(x+14)(x-9) = 0; so the answers are either -14, or 9, and since -14 is not possible in this case because you can't have a negative number of rows, the answer is 9 rows.

Check work: number of rows = 9, number of seats per row = 9+ 5= 14, and 9 x 14 = 126
You might be interested in
Write an equation in standard form of a line that goes through these two points (-1, 1) and (5, -3). Help, please!
MatroZZZ [7]

Step-by-step explanation:

assuming two points with coordinates :

(Xa,Ya) and (Xb,Yb)

use formula : (Xb-Xa)/ (Yb-Ya)

= 5+1/-3-1 = 6/-4

the standard form is 6/-4 × x

8 0
3 years ago
Which of the following would be the criterion for establishing similarity in the two triangles?
Luba_88 [7]

Answer:

<h3>A) Not enough information or not similar.</h3>

Step-by-step explanation:

We are given a triangle with a segment that connects two points of the two sides of given triangle.

There are different triangle similarity theorems are available there as given in options.

Side Side Side (SSS) triangle similarity theorem.

Side Angle Side (SAS) triangle similarity theorem.

Angle Angle (AA) triangle similarity theorem.

But in the shown figure, we are not provided much information about it's sides and angles.

Therefore, correct option is :

<h3>A) Not enough information or not similar.</h3>
5 0
3 years ago
What is the median of 5, 7, 2, 4, 3 (remember to place the numbers in order first.)
Inessa05 [86]

Answer:

4

Step-by-step explanation:

The numbers in order would be

2, 3, 4, 5, 7

The number in the middle is always the median

Therefore, 4 is the median

5 0
3 years ago
The domain of this function is {-12, -6, 3, 15}. y=-2/3x+7 complete the table based on the given domain.
Nookie1986 [14]

If the domain of the function y=-2/3 x+7 is {-12,-6,3,15} then the range of the function is {15,11,5,-3}.

Given that the domain of the sunction y=-2/3 x+7 is {-12,-6,3,15}.

We have to find the range of the function and complete the table.

Function is relationship between two or more variables expressed in equalto form. In a function each value of x has some value of y.

To complete the table we need to find the value of the function at different values of x.Domain is basically value of  x which satisfies the function.

We have to first put the value of x=-12 in y=-2/3+7

y--2/3*-12+7

=15

Now put x=-6 in the function.

y=-2/3 *-6+7

=3

Put the value of x=3 in the function.

y=-2/3*3+7

=5

Put the value of x=15.

y=-2/3*15+7

=-41/3.

Hence the range of function is {15,11,-41/2,5}.

Learn more about range at brainly.com/question/26098895

#SPJ4

8 0
2 years ago
A. 55<br> B. 45<br> C. 90<br> D.35
Dima020 [189]

Answer:

I believe it is A

Step-by-step explanation:

I really hope it's right

I hope you have a wonderful day!

5 0
3 years ago
Read 2 more answers
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