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3 years ago

PLEASEEEEEEEE HELPPPP!

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

4 0

Answer:

four

Step-by-step explanation:

the associative property is when what ever is in the parentheses can be moved around and it won’t matter because I’ll give the same answer. One dosent have parenthese, two does but the x will distribute into the equation, three there is no parentheses, and four has parentheses and you can’t distribute.

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The distance on a map between a student's house and her job is 6 cm on the same map the distance between her house and her schoo

Montano1993 [528]

Answer:

9 km

Step-by-step explanation:

First I did 12 divided by 8 to get the amount that each centimeter is worth.

I got 1.5

After that all i had to do was multiply 1.5 by 6 to get 9

8 0

3 years ago

The perimeter of the window of the camper shell is 130 in. Find the length of one of the shorter sides of the window.

erik [133]

You can't deduce the length of a side from the perimeters of a rectangle.

Say that $s$ and $S$ are, respectively, the short and long side of the rectangle.

So, we know that

$2s+2S=130 \iff 2(s+S)=130 \iff s+S=65$

But we can't solve exactly for $s$ nor for $S$ , unless more information is given.

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3 years ago

Nancy worked thirty-six and three-tenths hours each week How many hours did she work in forty-seven weeks

Annette [7]

Answer:

I believe the answer would be 1,706.1

Step-by-step explanation:

Since the problem is a fraction, it would be easier to covert it to a decimal. This is made simple since the fraction is out of ten. Now, the number should look like this: 36.3

Now let's do long division.

Now we have answer of 1706.1

We have one more step. Since there is one number behind the decimal point in 36.3, we have to put one number behind the decimal point in our answer.

As you can see in the last picture, we have 1,706.1.

I hope you understand after I have explained. If you have any other troubles, tell me.

7 0

3 years ago

Graph the following piecewise function on a separate piece of graph paper and upload your graph below.

Alecsey [184]

ANSWER

To graph the function

$f(x)=\left \{ {{x+4\:\:if\:\:-4\leq x$

follow the steps below.

1. Find y- intercept by plugging in $x=0$ .

$x=0$ is on the interval, $-4\leq x$ , so we substitute in to

$f(x)=x+4$

$\Rightarrow f(0)=0+4$

$\Rightarrow f(0)=4$

Hence the y-intercept is $(0,4)$

2. Find x-intercept by setting $f(x)=0$

This implies that

$x+4=0,$ on $-4\leq x$

or

$2x-1=0$ on $3\leq x$

We now solve for $x$ on each interval,

$x=-4,$ on $-4\leq x$

or

$x=\frac{1}{2}$ on $3\leq x$

But observe that

$x=\frac{1}{2}$ does not belong to $3\leq x$

This means it can never be an intercept for this piece-wise function.

Hence our x-intercept is $(-4,0)$

3. Plotting the boundaries of the interval.

For $f(x)=x+4$ on $-4\leq x$

$f(-4)=-4+4$

$\Rightarrow f(-4)=0$ .

This point $(-4,0)$ coincides with the x-intercept.

$f(3)=3+4$

$f(3)=7$

So we have the point $(3,7)$ . But note that $x=3$ does not belong to this interval so we plot this point as a hole.

For $f(x)=2x-1$ on $3\leq x$

$f(3)=2(3)-1$

$\Rightarrow f(3)=5$

So we plot $(3,5)$

$f(6)=2(6)-1$

$\Rightarrow f(6)=11$

So we plot $(6,11)$ also as a hole.

Plotting all these points we can now graph the function,

$f(x)=\left \{ {{x+4\:\:if\:\:-4\leq x$

See attachment for graph.

7 0

3 years ago

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You walk 1/3 miles to a grocery store. Then you walk another 1/2 miles to a music store. How many miles have you walked in all?

andriy [413]

You have walked 5/6 miles

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3 years ago

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