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Elanso [62]
3 years ago
10

The perfect squares between 21 and 52

Mathematics
1 answer:
lesya692 [45]3 years ago
7 0
The answer is 25 and 49
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The total number of seats in a movie theater is calculated by adding the area of the upper section given by 8x2 and the area of
e-lub [12.9K]
8x^2+6x^2+4x=138  combine like terms on left side

14x^2+4x=138 since the number of seats in the from row is just 4x, subtract 14x^2 from both sides

4x=138-14x^2  that would be the general solution, if you wanted the actual number you would have to solve for x and then multiply that value by 4 to know what "4x" is...

14x^2+4x-138=0

14x^2-42x+46x-138=0

14x(x-3)+46(x-3)=0

(14x+46)(x-3)=0

2(7x+23)(x-3)=0, since x>0

x=3 and thus

4x=12 seats

So there are 12 seats in the front row addition.


3 0
3 years ago
Which term describes a function in which the y-values form a geometric sequence? A. Exponential function B. Linear function C. L
ankoles [38]
The answer for the exercise shown above is the first option, the option A, which is shown below: A. Exponential function.
 In a geometric sequence, the ratio of any two consecutive numbers that form the sequence is equal. In other words, they have common ratio. 
7 0
3 years ago
Given ​ f(x)=x2+14x+40 ​.<br><br><br> Enter the quadratic function in vertex form in the box.
sammy [17]
Please indicate exponentiation using " ^ "   Thanks.

f(x)=x2+14x+40 => <span>f(x)=x^2+14x+40

Next, complete the square:

</span>f(x)=x^2+14x+ 49 - 49 +40 = (x+7)^2 - 9 

Write this in the form y = (x+7)^2 - 9  or y + 9 = (x+7)^2
Comparing this result to y = a(x-h)^2 + k, we see that h = -7 and k=-9

In vertex form, the equation is y + 9 = (x+7)^2 and the vertex is at (-7, -9).
8 0
3 years ago
Which is true of the infinite solutions of the inequality x &lt; 0
k0ka [10]

Answer:

The solutions will contain an infinite amount of negative numbers.

5 0
3 years ago
Simplify the expression 43 + 2(3 − 2)
Sonja [21]

Answer:

))))))

Step-by-step explanation:

43+2(3-2)=43+2*3-2*2=43+6-4=45

8 0
3 years ago
Read 2 more answers
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