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3 years ago

Problems 11-16, find the domain of each function.

Mathematics

1 answer:

Ivanshal [37]3 years ago

3 0

Answer:

Domain: { all real values}

Step-by-step explanation:

3x + y = 4

This is a line

The domain is all possible values for x

X can range from negative infinity to infinity

Domain: { all real values}

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Trevor Sherr is paid $1.20 for each hand-painted

Margarita [4]

Answer:

$112.80

Step-by-step explanation:

First, add 56 and 44, which is 100. Then because 6 of the dishes contained errors, he didn't sell them, so subtract 6 from 100. You will get 94. Then you multiply 94 by 1.20 which would give you a result of $112.80.

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3 years ago

The force F between 2 objects is inversely proportional to the square of the distance, d between them. The force is 0.36 newtons

LenaWriter [7]

Answer:

0.73 N to 2 dp.

Step-by-step explanation:

F = k/d^2 where k is a constant , F = force and d = distance.

Substituting:

0.36 = k / (6)^2

k = 36*0.36 = 12.96 s the equation is F = 12.96 / d^2.

When d = 4.2 :

F = 12.96 / 4.2^2

F = 0.73 Newtons to 2 dp.

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3 years ago

Rewrite this percent as a decimal: 80%

ella [17]

Answer:

.80

0.80

Step-by-step explanation:

80 is out of 100, which is other words is .80 or 0.80

6 0

3 years ago

What is -3m-8v-4m+5v

vladimir1956 [14]

I hope this helps you

-3m-4m-8v+5v

-7m-3v

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3 years ago

Read 2 more answers

Solve the system of equations by any method. 5x+9y =16 x+2y =4

Alisiya [41]

Answer:

The system of equations has one solution at (-4, 4).

Step-by-step explanation:

We are given the system of equations:

$\displaystyle\left \{ {{5x+9y=16} \atop {x+2y=4}} \right.$

We can use elimination to solve this system. We need to multiply the second equation by -5 so we can cancel out our x-terms.

$-5\times(x+2y=4) \rightarrow -5x - 10y = -20$

Therefore, our system now becomes:

$\displaystyle\left \{ {{5x+9y=16} \atop {-5x-10y=-20}} \right.$

Now, we can add these two equations together and solve for y.

$\displaystyle(5x + 9y) + (-5x - 10y) = 0 - y\\\\16 + (-20) = -4\\\\-y = -4\\\\\frac{-y}{-1}=\frac{-4}{-1}\\\\y = 4$

Now, we can substitute our value for y into one of the equations and solve for x.

$x+2(4)=4\\\\x + 8 = 4\\\\x = -4$

Therefore, our final solution is (-4, 4).

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3 years ago