3 years ago

X2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2

Mathematics

1 answer:

Andrei [34K]3 years ago

8 0

The answer is 14 for your questions

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Is the given number a solution of the equation? Which value of c is a solution to the equation c = 2c – 4?

serg [7]

C - 2c = 2c - 2c - 4
c - 2c = -4
-c = -4
c = 4

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3 years ago

Telephone plan consist of a monthly fee of $20 plus $.20 per minute for long distance calls made write an equation for the total

HACTEHA [7]

Answer:

$C=20+0.20N$

Step-by-step explanation:

Fixed monthly fee = $20

Amount charged per minute for long distance calls = $0.20

$C$ denotes total cost such that $N$ minutes are used for long distance calls.

Amount charged for $N$ minutes for long distance calls $=0.20N$

Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is $C=20+0.20N$

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3 years ago

An 11 letter word for the variable in an algebraic expression

Natalija [7]

I'm just guessing but maybe expressions

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3 years ago

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Suppose someone tells you that she has a triangle with sides having lengths 3.5, 4.5 and 5.5 yards. Is this a right triangle?

Katarina [22]

You can solve by using Pythagoras theorem.
Let the longest side be c.
a^2 + b^2 = c^2
If this holds, it is a right angle.

But, 3.5^2 + 4.5^2 is not equal to 5.5^2.

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3 years ago

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(2/3)^2 without exponents

Goshia [24]

Answer:

$\frac{4}{9}$

Step-by-step explanation:

$(\frac{2}{3} )^{2} =\frac{2^2}{3^2} =4/9$

Hope that helps :)

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3 years ago