3 years ago

Evaluate the expression for x = 4, y=-2, z= -3. 2² + 8zy - y²

Mathematics

2 answers:

Nikitich [7]3 years ago

8 0

the answer is 53 I'm pretty sure

andrew11 [14]3 years ago

3 0

Answer:

Pretty sure its 53

Step-by-step explanation:

9+48-4

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what is the order from least to greatest - 4 with the exponent of 3, square root of 40, square root of 13, square root of 7, , 1

LuckyWell [14K]

Answer: $-4^{3}$ , 14/9 , $\sqrt{7}$ , $\sqrt{13}$ , $\sqrt{40}$

Step-by-step explanation:

$-4^{3}$ = - 64

$\sqrt{40}$ = 6.32455532

$\sqrt{13}$ = 3.605551275

$\sqrt{7}$ = 2.645751311

14/9 = 1.555555556

Arranging from least to greatest , we have :

$-4^{3}$ , 14/9 , $\sqrt{7}$ , $\sqrt{13}$ , $\sqrt{40}$

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3 years ago

How can you tell if three positive numbers form a<br> Pythagorean triple?

Sedaia [141]

Answer:

Since a Pythagorean triple is three positive integers a, b, and c such that (a^2)+(b^2)=(c^2), where a and b are the two legs, and c is the hypotenuse, first take the sum of the squares of the two legs and make an estimate. For example, 3, 4, and 5 is a Pythagorean triple since 9+16=25.

8 0

3 years ago

Help me pleasee and also could you explain bc im so confused

Rufina [12.5K]

What the person said up above should be correct!

3 0

3 years ago

Need halp solving this step by step to further understand. please and thank you!

tangare [24]

Answer:

w=6

Step-by-step explanation: