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3 years ago

HELP ME FOR BRIANETEST

Mathematics

1 answer:

Nataliya [291]3 years ago

8 0

As indicated on the number line 1/3 is the same as 2/6 so we get

Answer: 2/6 + 5/6 = 7/6

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For all real numbers x and y, if x # y = x(x-y), then x # (x # y) =

kati45 [8]

$x\#y=x(x-y)\\\\x\#(x\#y)\\\\x\#y=x(x-y)=x^2-xy\\\\x\#(x\#y)=x\#(x^2-xy)=x[x-(x^2-xy)]=x(x-x^2+xy)\\\\=x^2-x^3+x^2y$

$x^2-x^3+x^2y=8\\\\x^2(1-x+y)=8\\\\x^2(1-x+y)=2^2\cdot4\iff x^2=2^2\ and\ 1-x+y=4\\\\x=2\ and\ y=4-1+x\\\\x=2\ and\ y=3+2\\\\x=2\ and\ y=5$

8 0

3 years ago

Read 2 more answers

If 5 slices of pizza cost $5:50 how much does

kupik [55]

The first thing we must do for this case is to define variables.

We have then:

x: number of slices

y: total cost

We write the linear function that relates the variables.

We have then:

$y = (\frac{5.50}{5}) * x$

Then, we evaluate the number of slices to find the total cost.

-two slices cost:

We substitute x = 2 in the given equation:

$y = (\frac{5.50}{5}) * 2\\y = 2.2$

Answer:

two slices = 2.2 $

-ten slices cost:

We substitute x = 10 in the given equation:

$y = (\frac{5.50}{5}) * 10\\y = 11$

Answer:

ten slices = 11 $

-half a slice cost:

We substitute x = 1/2 in the given equation:

$y = (\frac{5.50}{5}) * \frac{1}{2}\\y = 0.55$

Answer:

half a slice = 0.55 $

6 0

3 years ago

Susan keeps track of the high and low temperatures every day for a week. The following table shows her data what is the average

uysha [10]

Answer:

10.75

Step-by-step explanation:

To get the average, we always SUM UP all the numbers and divide by the number of numbers.

We do this for "change" row since we want average of "change".

Let's add up all the changes:

11 + 12 + 10 + 10 + 11 + 10 + 11 = 75

How many numbers are there?

There are 7 numbers

Now, the average:

Average = Sum/Number of Numbers

Average = $\frac{75}{7}=10.75$

The average = 10.75

4 0

3 years ago

Think About the Process The length of a rectangle is twice the width. The area of the rectangle

natima [27]

Answer:

length of each square= $\sqrt{43}$ ≈ 6.6

the length of the rectangle = 2 $\sqrt{43}$ ≈ 13.1

width of the rectangle ≈ $\sqrt{43}$ ≈ 6.6

Step-by-step explanation:

8 0

2 years ago

What’s the slope of (-3, 6), (2, 6)?

IRINA_888 [86]

Answer:

Step-by-step explanation:

(y2-y1)/(x2-x1)

6(y2)-6(y1)= 0

2(x2)- -3(x1)=5

0/5=0

4 0

3 years ago