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Vladimir79 [104]
3 years ago
5

Need help for this assignment

Mathematics
1 answer:
Alecsey [184]3 years ago
3 0
If you need help please message me
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what is the center and radius of the circle given the equation, 8x + x-squared - 2y + y-squared - 64 = 0?
RoseWind [281]

Step-by-step explanation:

8x + x² - 2y + y² - 64 = 0

(x + 4)² + (y - 1)² - 81 = 0

(x + 4)² + (y - 1)² = 81

Hencr the center is (-4,1) and the radius is 9.

7 0
2 years ago
Drag the tiles to the correct boxes to complete the pairs.
Ne4ueva [31]

Answer:

Part 1) -1.25 -------> 2.75/(-2.2)

Part 2) -4\frac{1}{3} --------> (-2\frac{3}{5}) / (\frac{3}{5})

Part 3) \frac{2}{3} ------> (-\frac{10}{17}) / (-\frac{15}{17})

Part 4) 3 ------> (2\frac{1}{4}) / (\frac{3}{4})

Step-by-step explanation:

Part 1) we have

2.75/(-2.2)

To calculate the division problem convert the decimal number to fraction number

2.75=275/100\\ -2.2=-22/10      

so

(275/100)/(-22/10)

Remember that

Since division is the opposite of multiplication, you can turn this division problem into a multiplication problem by multiplying the top fraction by the reciprocal of the bottom fraction

(275/100)/(-22/10)=(275/100)*(-10/22)=-(275*10)/(22*100)=-(275)/(220)

Simplify

Divide by 22 both numerator and denominator

-(275)/(220)=-125/100=-1.25

Part 2) we have

(-2\frac{3}{5}) / (\frac{3}{5})

To calculate the division problem convert the mixed number to an improper fraction  

(-2\frac{3}{5})=-\frac{2*5+3}{5}=-\frac{13}{5}

so

(-\frac{13}{5}) / (\frac{3}{5})

Since division is the opposite of multiplication, you can turn this division problem into a multiplication problem by multiplying the top fraction by the reciprocal of the bottom fraction

(-\frac{13}{5}) / (\frac{3}{5})=(-\frac{13}{5})*(\frac{5}{3})=-\frac{13*5}{5*3}=-\frac{13}{3}

Convert to mixed number

-\frac{13}{3}=-(\frac{12}{3}+\frac{1}{3})=-4\frac{1}{3}

Part 3) we have

(-\frac{10}{17}) / (-\frac{15}{17})

Since division is the opposite of multiplication, you can turn this division problem into a multiplication problem by multiplying the top fraction by the reciprocal of the bottom fraction

(-\frac{10}{17}) / (-\frac{15}{17})=(-\frac{10}{17})*(-\frac{17}{15})=\frac{10*17}{17*15}=\frac{10}{15}

Simplify

Divide by 5 both numerator and denominator

\frac{10}{15}=\frac{2}{3}

Part 4) we have

(2\frac{1}{4}) / (\frac{3}{4})

To calculate the division problem convert the mixed number to an improper fraction  

(2\frac{1}{4})=\frac{2*4+1}{4}=\frac{9}{4}

so

(\frac{9}{4}) / (\frac{3}{4})

Since division is the opposite of multiplication, you can turn this division problem into a multiplication problem by multiplying the top fraction by the reciprocal of the bottom fraction

(\frac{9}{4}) / (\frac{3}{4})=(\frac{9}{4})*(\frac{4}{3})=\frac{9*4}{4*3}=\frac{9}{3}=3

8 0
3 years ago
Please I need to know today?
GenaCL600 [577]

Answer:

The three collinear poitns are D, A, and E.

Step-by-step explanation:

Collinear points are points that all reside on the same line. Since we are looking for 3 seperate points we need a line with 3 points. There are only 2 lines on the picture and only one has three lines getting you your answer.

8 0
3 years ago
Which expression is a difference of squares with a factor of 2x+5
Masteriza [31]

Answer:

4x^2 – 25

Step-by-step explanation:

i'vegot your back :))

4 0
2 years ago
Please answer for me
solong [7]
It should equal 12.56
6 0
2 years ago
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