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ss7ja [257]
3 years ago
5

How to change this fraction into a decimal by dividing ?

Mathematics
1 answer:
hoa [83]3 years ago
7 0
You would divide 4 by 33 to get 0.12
bar notation or the little line on top saying its repeating. Hope I helped :)
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The equation for a parabola has the form y = ax^2 + bz + c, where a, b, and c are constants and aメ0. Find an equation for the pa
vova2212 [387]

Answer:

a = 2, b = -9, c = 3

Step-by-step explanation:

Replacing x, y values of the points in the equation y = a*x^2 + b*x +c give the following:  

(-1,14)

14 = a*(-1)^2 + b*(-1) + c  

(2,-7)

-7 = a*2^2 + b*2 + c  

(5, 8)  

8 = a*5^2 + b*5 + c  

Rearranging:

a - b + c = 14  

4*a + 2*b + c = -7

25*a + 5*b + c = 8

This is a linear system of equations with 3 equations and 3 unknows. In matrix notation the system is A*x = b whith:

A =

1    -1  1

4    2  1

25  5  1

x =

a  

b

c

b =

14

-7

8

Solving A*x = b gives x = Inv(A)*b, where Inv(A) is the inverse matrix of A. From calculation software (I used Excel) you get:

inv(A) =  

0.055555556 -0.111111111   0.055555556

-0.388888889 0.444444444   -0.055555556

0.555555556 0.555555556 -0.111111111

inv(A)*b

2

-9

3

So, a = 2, b = -9, c = 3

5 0
3 years ago
Question 2 Multiple Choice Worth 4 points)
Liono4ka [1.6K]

Answer:

The exponents that should be multiplied are 073.78.

Step-by-step explanation:

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3 years ago
The net of a rectangular prism is shown below. What is the total surface area of the prism in square centimeters?
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B.96

Step-by-step explanation:

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2 years ago
Britney work 35 hours at a rate of pay of 9.55 how much did she earn before taxes ​
k0ka [10]

Answer:

3.66

Step-by-step explanation:

35÷9.55=3.66

7 0
3 years ago
Help help help help please business
Margaret [11]

Answer:

x = 35°

Step-by-step explanation:

These are corresponding angles. When a transversal crosses 2 parallel lines, 4 angles are created at each intersection, and each pair of corresponding angles between those are congruent.

These angles are congruent, so you can set them equal to each other:

2x+20=3x-15

Then, just solve for x:

20=x-15\\35=x\\x=35

You can check that by plugging it back into both:

2x+20=3x-15\\2(35)+20=3(35)-15\\70+20=105-15\\90=90

3 0
2 years ago
Read 2 more answers
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