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3 years ago

Evaluate the following expression using the values given: Find 3x − y − 3z if x = −2, y = 1, and z = −2. −13 −1 1 13

Mathematics

2 answers:

cluponka [151]3 years ago

6 0

The correct answer is -1

Black_prince [1.1K]3 years ago

3 0

3(-2) - 1 - 3(-2) = -6 - 1 + 6 = -1

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Determine whether the point (1,5) is a solution to the system of equations g(x)=3x+2 f(x)=|x-1|+1

Marizza181 [45]

Point $(1,5)$ is a solution of the equation $g(x)=3x+2$ and point $(1,5)$ is not a solution of equation $f(x)=|x-1|+1$

Why point $(1,5)$ is solution of the equation $g(x)=3x+2$ ?

If point $(1,5)$ is solution of the equation then they must satisfy the equation.

So we need to check one by one

$(x,y)=(1,5)$

equation $g(x)=3x+2$

We can write as

$y=3x+2\\5=3*1+2\\5=5$

So point $(1,5)$ is solution of this equation.

Equation $f(x)=|x-1|+1$

We can write as

$y=|x-1|+1\\5=|1-1|+1\\5=0+1\\5\neq 1$

So point $(1,5)$ is not solution of equation $f(x)=|x-1|+1$

Learn more about solution of equation here :

brainly.com/question/28048877

#SPJ4

6 0

2 years ago

Solve the formula for T. L=4 πzt+5 πz^3

vekshin1

Answer:

${ \tt{L = 4\pi zt + 5\pi {z}^{2} }} \\ \\ { \tt{L = \pi z(4t + 5z)}} \\ \\ { \tt{ \frac{L}{\pi z} = 4t + 5z}} \\ \\ { \tt{4t = \frac{L}{\pi z} - 5z}} \\ \\ { \tt{t = \frac{L}{4\pi z} - \frac{5z}{4} }} \\ \\ { \boxed{ \tt{t = \frac{L - 5\pi {z}^{2} }{4\pi z} }}}$

7 0

2 years ago

Which of the following rules describes the function graphed below?

liraira [26]

Answer:

Output = (0.5)(Input) + 1.5

input = 1 , output = (0.5)(1) + 1.5 = 2

input = 3 , output = (0.5)(3) + 1.5 = 3

input = 5 , output = (0.5)(5) + 1.5 = 4

input = -1 , output = (0.5)(-1) + 1.5 = 1

Step-by-step explanation:

8 0

3 years ago

I flew at about 135 mph for about 15 hours how far did I fly

quester [9]

Distance = velocity * time

d=135*15=2025 mi.

4 0

3 years ago

Solve 3x - x + 2 = 12. (1 point) -5 4 7 5

MrRa [10]

Answer: x=5

Step-by-step explanation:

3x - x = 12 - 2

2x = 10

x = 10/2

x = 5

5 0

3 years ago