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3 years ago

Solve each system by elimination.

Mathematics

1 answer:

max2010maxim [7]3 years ago

8 0

Answer:

Step-by-step explanation:

-x-2y+4z=-14

x=-2y+4z+14

2x+2y+2z=-6

2x=-2y-2z-6

x= -y-z-3

-x-6z=-3

x=3-6z

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Will get branliest!!!!!!!

lawyer [7]

Answer:

It has the same domain as the function $f(x)=-\sqrt{-x}$

Step-by-step explanation:

we have

$f(x)=\sqrt{-x}$

we know that

The radicand cannot be a negative number

$-x\geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain of the given function is the interval ----> (-∞,0]

All real numbers less than or equal to 0

The range of the given function is the interval ----> [0,∞)

All real numbers greater than or equal to zero

Verify each statement

Part 1) It has the same domain as the function $f(x)=-\sqrt{-x}$

The statement is true

The domain of the function $f(x)=-\sqrt{-x}$ is

the interval ---> (-∞,0]

Part 2) It has the same range as the function $f(x)=-\sqrt{-x}$

The statement is false

The range of the function $f(x)=-\sqrt{-x}$ is

the interval ---> (-∞,0]

Part 3) It has the same domain as the function $f(x)=-\sqrt{x}$

The statement is false

The domain of the function $f(x)=-\sqrt{x}$ is

the interval ---> [0,∞)

Part 4) It has the same range as the function $f(x)=-\sqrt{x}$

The statement is false

The range of the function $f(x)=-\sqrt{x}$ is

the interval ---> (-∞,0]

4 0

3 years ago

Read 2 more answers

3 women push a stalled car. Each woman pushes with a 425 N force. What is the mass of the

iogann1982 [59]

Answer:

1,500 Kg

Step-by-step explanation:

Formual for froce is given by

force = mass * acceleration

Force exerted by 1 woman = 425 N

no. of women exerting force = 3

Force exerted by 3 woman = 425 * 3 N = 1275 N

Acceleration produced by 1275 N force = 0.85 m/s^2

Using formula force = mass * acceleration

1275 = mass * 0.85 m/s^2

=> mass = 1275/ 0.85 m/s^2 = 1,500 Kg

Thus, mass of car is 1,500 Kg.

8 0

2 years ago

Rewrite the expression in z to the n power. The expression I was given is: 1 over z to the negative 1 half power.

12345 [234]

Answer:

The equivalent expression is;

$\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}$

Step-by-step explanation:

The given expression is:

$\frac{1}{z^{-\frac{1}{2} }}$

Recall that:

$\frac{1}{a^{-m}}=a^m$

In our case, $a=z$ and $m=\frac{1}{2}$ .

We use this property of exponent to obtain;

$\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}$

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2 years ago

If you go out to eat with 3 friends and your meal was $72.50, there is 6.75% sales tax and you should tip the waiter 15%. How mu

zhuklara [117]

Answer:

$29.67

Step-by-step explanation:

first you would fin out how much the total would be with the sales tax( which is equal to $4.89) added to the initial cost which should add up to $77.39

the 15% tip would add $11.61 to the $77.39

divide 89 by 3 which should give you 29.67

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2 years ago

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Will give brainlyist helpppp

Andrew [12]

Answer:

A. 3.7

Step-by-step explanation:

3900/1050 = 3.7

5 0

3 years ago

Read 2 more answers