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3 years ago

Graph the line with the equation y=-2x + 6.

Mathematics

1 answer:

motikmotik3 years ago

8 0

Answer:

can you show a link to the graph

Step-by-step explanation:

it will help me answer

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Julie is constructing a scale model of her room.The rectangular room is 10 1/4 inches by 8 inches.If 1 inch represents 2 feet of

zlopas [31]

The way to determine this is to know that 1 foot is 12 inches (so 2 is 24)
Now the ration that would determine the scale factor of the room is 1:24 (1 inch for every 24 inches)
So the scale factor is 1:24
Now to determine the area we multiply the numbers we have by 2 and change the inches to feet (I hope that makes sense to you, it does to me, I'll show you)
10.25 * 2 = 20.5 ft.
8 * 2 = 16 ft.
now we know the dimensions of the room so we need to find the area.
A=B*H
20.5 * 16 = 328
so the area of the room is 328 ft.²

6 0

4 years ago

Read 2 more answers

Simplify 6m plus 2m minus 5

mr Goodwill [35]

Answer:

8m-5

Step-by-step explanation:

Lets write this out in an equation.The plus means addition and the minus means subtraction.

6m+2m-5

Since there is two things with the same variable we can combine them.

8m-5

That is as simple as it gets.

6 0

3 years ago

Read 2 more answers

Mrs. epps buys 500 ballons for the hih school prom for $250. what is the cost per bag

azamat

Answer:

.50 sence per bag im sure?

Step-by-step explanation:

6 0

3 years ago

Which of the following statements exemplifies a null hypothesis?

elixir [45]

Answer:

(A) there is no relationship between gender and jury verdicts

Step-by-step explanation:

The null hypothesis is the one in which we assume that there are no relationship between measures.

In this exercise, the only option that assume no relationship between measures(gender and jury verdicts) is

(A) there is no relationship between gender and jury verdicts

5 0

4 years ago

The function f(x) = 2x2 + 3x + 5, when evaluated, gives a value of 19. What is the function’s input value?

goldenfox [79]

$f(x)=\quad 2{ x }^{ 2 }+3x+5$

Let's called the input 'z'

When we plug 'z' in the function we get ;

$f(z)=\quad 2{ z }^{ 2 }+3z+5$

And we know that, this is equal to 19, so ;

$2{ z }^{ 2 }+3z+5=\quad 19$

Let's rearrange the equation.

$2{ z }^{ 2 }+3z+5=\quad 19\\ \\ 2{ z }^{ 2 }+3z=\quad 19-5\\ \\ 2{ z }^{ 2 }+3z=\quad 14\\ \\ 2{ z }^{ 2 }+3z-14=\quad 0$

So we have a quadratic equation here.

We'll use this formula to solve it :

$\frac { -b\pm \sqrt { { b }^{ 2 }-4ac } }{ 2a }$

The formula is used in equation formed like this :

$a{ x }^{ 2 }+bx+c=0$

In our equation,

a=2 , b=3 and c=-14

Let's plug in the values in the formula to solve,

$a=2\quad b=3\quad c=-14\\ \\ \frac { -3\pm \sqrt { 9-(4\cdot 2\cdot -14) } }{ 4 } \\ \\ \frac { -3\pm \sqrt { 9-(-112) } }{ 4 } \\ \\ \frac { -3\pm \sqrt { 9+112 } }{ 4 } \\ \\ \frac { -3\pm \sqrt { 121 } }{ 4 } \\ \\ \frac { -3\pm 11 }{ 4 }$

So,

$z=\quad \frac { -3+11 }{ 4 } \quad ,\quad \frac { -3-11 }{ 4 } \\ \\ z=\quad \frac { 8 }{ 4 } \quad ,\quad \frac { -14 }{ 4 } \\ \\ z=\quad 2,\quad -\frac { 7 }{ 2 }$

So the input can be both, 2 and $-\frac{7}{2}$

8 0

3 years ago