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3 years ago

Suzie solves the equation below:

Mathematics

1 answer:

12345 [234]3 years ago

6 0

Answer:

Suzie's answers are incorrect.

Step-by-step explanation:

x^2+4x-12=2

+12 +12

x^2+4x=14

(if we put Suzie's answer in for x)-

2^2+4(2)=14

4+8=14

Suzie's first answer is incorrect (4+8=12)

Let's try the next one with Suzie's answer

(-6-2)(-6+6)=2

(-8)(0)=2

This answer is also incorrect. (-8*0=0)

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[22.57 ± 2.776]

Step-by-step explanation:

Hello!

You have the 95% Confidence Z-interval (21.182;23.958), the mean X[bar]= 22.57 and the sample size n=25.

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