Nesreen wants to find out how often people in her town visit the cinema.

Mathematics

1 answer:

cricket20 [7]3 years ago

3 0

Tbh I don’t know and I hope someone gives you the answer

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(PLEASE HELP ASAP!!)

AysviL [449]

I believe the answer is 21. I can tell you how I got the answer if you want.

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2 years ago

Read 2 more answers

Evaluate. y2 + 2y + 5 for y = -5

OleMash [197]

Answer:

Step-by-step explanation:

Evaluate for y= −5

(−5)2+(2)(−5)+5

=20

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2 years ago

Would you classify the number 289 as a perfect square, perfect cube, both, or neither?

Black_prince [1.1K]

Answer:

a perfect square because 17 x 17 = 289

It's not a perfect cube

Step-by-step explanation:

7 0

2 years ago

Need help with a system of equations

sweet [91]

Answer:

$\boxed{x - y = -2\sqrt{7}}$

Given:

$x + y = 4 \\ \\ {x}^{2} + {y}^{2} = 22 \\ \\ {x}^{4} = {y}^{4} - 176 \sqrt{7}$

Step-by-step explanation:

$= > {x}^{4} = {y}^{4} - 176 \sqrt{7} \\ \\ = > {x}^{4} - {y}^{4} = - 176 \sqrt{7} \\ \\ = > {( {x}^{2}) }^{2} - { ({y}^{2}) }^{2} = - 176 \sqrt{7} \\ \\ = > ( {x}^{2} + {y}^{2} )( {x}^{2} - {y}^{2} ) = - 176 \sqrt{7} \\ \\ = > ( {x}^{2} + {y}^{2}) (x + y)(x - y) = - 176 \sqrt{?} \\ \\ = > 22 \times 4(x - y) = - 176 \sqrt{7} \\ \\ = > 88(x - y) = - 176 \sqrt{7} \\ \\ = > x - y = - \frac{176 \sqrt{7} }{88} \\ \\ = > x - y = - 2 \sqrt{7}$