3 years ago

Write the equation of the giving circle center (-2,-2) radius of 6

Mathematics

1 answer:

astraxan [27]3 years ago

5 0

Answer:

(x+2)²+(y+2)²=36

Step-by-step explanation:

given r=6

center is (-2,-2)

the equation becomes

(x-(-2))²+(y-(-2))² = 6²

on simplifying we get the answer

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You started saving for a car when you were in middle school. You have done some research and discovered that it will cost you ab

Irina-Kira [14]

Answer:

=> $2,833.47

Step-by-step explanation:

n = [lnA - lnP] / ln(1 + i)

n = [ln15000 - ln10000] / ln(1 + 0.03)

n = [9.6158 - 9.2103] / 0.0296

n = 13.70

13 years, 8 months and 12 Days

P = A / [(1 + i)n]

P = 15000 / [(1.03)4]

P = 15000 / 1.1255

P = $13,327.31

A = 10000 (1 + 0.04)5

A = $12,166.53

The amount of money you need to save to buy a car at $15,000 would be;

$15,000 - $12,166.53

=> $2,833.47

3 0

3 years ago

Solve each system using substitution.<br> 3x+2y=23<br> 1/2x-4=y

weqwewe [10]

$\left\{\begin{array}{ccc}3x+2y=23&(1)\\y=\frac{1}{2}x-4&(2)\end{array}\right\\\\subtitute\ (2)\ to\ (1)\\\\3x+2(\frac{1}{2}x-4)=23\\3x+x-8=23\\4x-8=23\ \ \ \ |add\ 8\ to\ both\ sides\\4x=31\ \ \ \ \ |divide\ both\ sides\ by\ 4\\\boxed{x=7.75}\\\\subtitute\ the\ value\ of\ "x"\ to\ (2)\\\\y=\frac{1}{2}(7.75)-4\\y=3.875-4\\\boxed{y=-0.125}\\\\Answer:\boxed{ \left\[\begin{array}{ccc}x=7.75\ (7\frac{3}{4})\\\\y=-0.125\ (-\frac{1}{8})\end{array}\right}$