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DochEvi [55]
2 years ago
11

Change 1/7 to a decimal. Show your work

Mathematics
2 answers:
Jlenok [28]2 years ago
7 0
0,14285714...
You just have to divide 1%7
Rama09 [41]2 years ago
3 0
Its 0.14285714 thats the answer
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A rectangular garden has length twice as great as its width. A second rectangular garden has the same width as the first garden
stiks02 [169]
Use the information to write the dimensions of each rectangle in terms of w, the width of the 1st one.

1st rectangle;
l = 2w
w = 2

2nd rectangle:
w = w 
l = 2w + 4

If the area of the 2nd rectangle is 70 square meters, you will use the area formula to write an equation that you will solve using the factoring.

A = lw
70 = w(2w + 4)
70 = 2w^2 + 4w
0 = 2w^2 + 4w -70
0 = 2 (w^2 +2w - 35)
0 = 2 (w + 7) (w - 5)

To get zero, the width would need to be -7 or 5.  Because it is a distance, it has to be 5 meters.

The width of both rectangles is 5 meters.

6 0
3 years ago
Which of the following values are in the range of the function graphed below?
Inessa [10]
The range of the function as seen from the graph is:

(-∞,-2] ∪ [2,∞)

So all the values that are in this range must be selected from the given options. Therefore, the correct answer is:

Option A: 2 
Option C: -4
Option E: -2
8 0
3 years ago
Read 2 more answers
The graph of the quadratic function y = ax^2 + bx + c is given.<br> Find a + b + c.
andrey2020 [161]

Answer:

\frac{145}{24}\approx 6***

Answers may vary depending on the person reading the graph.

It is hard to tell what they think crosses nicely.

For example, I decided that the graph crossed nicely at the following points:

(0,3)

(2,8)

(6,5)

Step-by-step explanation:

I see that the graph crosses at (0,3),(2,8), and (6,5).

The equation y=ax^2+bx+c tells us the y-intercept is c since when x=0 we have y=a(0)^2+b(0)+c=0+0+c=c.

The y-intercept for our graph is 3. Therefore, c=3.

So far we have the equation:

y=ax^2+bx+3.

Let's enter the other points creating a system of linear equations to solve:

8=a(2)^2+b(2)+3

5=a(6)^2+b(6)+3

Let's simplify:

8=4a+2b+3

5=36a+6b+3

Let's subtract 3 on both sides:

5=4a+2b

2=36a+6b

I choose to solve the system by elimination.

Let's multiply the top equation by -3:

-15=-12a-6b

2=36a+6b

Now adding the equations results in:

-13=24a

Divide both sides by 24:

\frac{-13}{24}=a

Now using one of the equations we can find b:

5=4a+2b with a=\frac{-13}{24}

5=4\frac{-13}{24}+2b

5=\frac{-13}{6}+2b

Add 13/6 on both sides:

5+\frac{13}{6}=2b

\frac{30+13}{6}=2b

\frac{43}{6}=2b

Divide both sides by 2:

\frac{43}{2(6)}=b

\frac{43}{12}=b

So we have the equation:

y=\frac{-13}{24}x^2+\frac{43}{12}+3

Let's evaluate a+b+c now:

\frac{-13}{24}+\frac{43}{12}+3

\frac{-13+86+72}{24}

\frac{73+72}{24}

\frac{145}{24}

4 0
3 years ago
A line that goes through the origin and the point (10,5) <br> Slope?
Travka [436]

Answer:

the slope should be 2

Step-by-step explanation:

4 0
2 years ago
Math Middle School Question
Alenkinab [10]
You have to add the according numbers bcoz the a and b are just adding up
3+6 9
4 0
2 years ago
Read 2 more answers
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