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Rzqust [24]
3 years ago
10

Evaluate -5 to the power of 2​

Mathematics
2 answers:
Degger [83]3 years ago
8 0

Answer:

-5²

-25

but (-5)² this means -5×-5=25

xeze [42]3 years ago
5 0

Answer:

the answer is -25

Step-by-step explanation:

-5 x -5= -25

negative x negative= negative

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4. What are the values of x and y? HELP PLEASE
Sergeeva-Olga [200]
The bottom answer is correct. I had some trouble with this so I had to find x and y in separate parts.

TO FIND X
notice that the top triangle and bottom triangles are similar, meaning if you multiple all three sides of one by a specific number, it becomes the same size as the bottom triangle.

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For some reason, this does not give a correct value for Y, so I had to use trig 

TO FIND Y 

Notice that the angle DAB is the same as DBC (lets call this angle Ø)

Using trig rule, we know that the cos of an angle is equal to the adjacent side divided by the hypotenuses.

We can now form some equations:

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8 0
3 years ago
A bag contains Red, Green and Yellow balls. A ball is taken at random from the bag. The probability that it is Red is 0.35 and t
Eddi Din [679]

Answer:

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Step-by-step explanation:

P(Red)=0.35

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P(Not Red)=1-0.35

P(Not Red)=0.65

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2 years ago
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Answer:

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Step-by-step explanation:

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