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Alekssandra [29.7K]
3 years ago
15

Barney has 20 feet of lumber that he is going to cut into 4 equal pieces for a border on his garden. Which of the following is t

rue? OA. Each piece of lumber is 16 feet long. OB. Each piece of lumber is 5 feet long. OC. Each piece of lumber is 5 feet long. OD. Each piece of lumber is 1į feet long. Reset Submit 3 of 10 Answered Session Score: 33% (1/3)​
Mathematics
1 answer:
amm18123 years ago
4 0
Each piece is 5 feet long
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The general form of the equation of a circle is x2 + y2 + 42x + 38y − 47 = 0. The equation of this circle in standard form is .
Readme [11.4K]

Answer:

(-21,-19)

\sqrt{849}

Standard form

Step-by-step explanation:

We are given the equation of circle

x^2+y^2+42x+38y-47=0

General equation of circle:

x^2+y^2+2gx+2fy+c=0

Centre: (-g,-f)

Radius: \sqrt{g^2+f^2-c}

Compare the equation to find f, g and c from the equation

g\rightarrow 21

f\rightarrow 19

c\rightarrow -47

Centre: (-21,-19)

Radius (r) =\sqrt{21^2+19^2+47}=\sqrt{849}

Standard form of circle:

(x+21)^2+(y+19)^2=849

The centre of circle at the point (-21,-19) and its radius is \sqrt{849}.

The general form of the equation of a circle that has the same radius as the above circle is standard form.

4 0
3 years ago
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In the figure shown, tIl x and k Il w.
Serhud [2]
. L find,mfksmcjccnnvjvnfkff
7 0
3 years ago
Megan and Sam were solving a system of equations. They both noticed that the two lines had different slopes. Megan said that bec
pochemuha
Your answer is A. Megan is correct. When two lines have different slopes, they must intersect, producing one solution.

5 0
4 years ago
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A. 4 feet by 1 1/2 feet
Triss [41]
The answer would be C because 2*2 =4 and 7/8*2 =1.75 put that into fraction form. 1 3/4
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3 years ago
Every counting number is a rational number true or false
ra1l [238]
<h3>Answer:  True</h3>

Reason:

The counting numbers, aka the set of natural numbers, is the set {1, 2, 3, 4, 5, ...} which is the set of positive integers

A value like 5 is the same as 5/1, which shows it is rational.

A rational number is any fraction of two whole numbers (eg: 2/3 and 4/7). The denominator cannot be zero.

Since we can rewrite the 5 as 5/1, it can be done with any counting number to show the natural numbers is a subset of the rational numbers.

Any counting number is rational, but not the other way around.

6 0
1 year ago
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