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lapo4ka [179]
3 years ago
9

What’s (X-4) (x+5) I don’t get it someone help

Mathematics
2 answers:
Marianna [84]3 years ago
8 0
Heya! I am going to show you something step by step, I hope this helps you hun.

<span>=<span><span>(<span>x+<span>−4</span></span>)</span><span>(<span>x+5</span>)</span></span></span><span>

=<span><span><span><span><span>(x)</span><span>(x)</span></span>+<span><span>(x)</span><span>(5)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(5)</span></span></span></span><span>

=<span><span><span><span>x2</span>+<span>5x</span></span>−<span>4x</span></span>−20</span></span><span>

=<span><span><span>x2</span>+x</span>−<span>20

(The 2 is to the second power between.) 

Please message me for further help! - Hannah</span></span></span>
Flauer [41]3 years ago
5 0
You have to find out what x is because x is an imaginary number
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Find the are of the shape below
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Answer:

Area is 235

Step-by-step explanation:

Split the shape evenly so 11 x 14 and 9 x 9then multly and add

when slpitting up the number some times you have to add or subtract so to get 9 x 9 we just take 20 then take away 11 due to the line going through 20 and 20 - 11 = 9

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Simular to the first one but the cutting line is different. this time the line cuts through 14

9 x 20 = 180

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8 0
2 years ago
Lisa brought half of her savings to the bakery and bought 12 croissants for $14.20. The amount of money she brings home with her
liraira [26]

Answer:

Before going to the bakery, Lisa had more than $32.40.

Step-by-step explanation:

Hi there!

Let x be Lisa´s savings.

She brings half of her savings to the bakery and expends $14.20. What is left is more than $2.00. Then:

x/2 - 14.2 > 2

Let´s solve the inequality:

x/2 - 14.2 > 2

Add 14.2 to both sides of the inequality.

x/2 > 2 + 14.2

x/2 > 16.2

Multiply by 2 both sides of the inequality.

x > 32.4

Before going to the bakery, Lisa had more than $32.40.

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