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Romashka-Z-Leto [24]

3 years ago

9

: In Ms. Perron’s class, 40% of the students are boys. There are 10 boys in the class. What is the total number of students in M

s. Perron’s class?

1 answer:

vaieri [72.5K]3 years ago

8 0

Answer:

idk

Step-by-step explanation:

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stepladder [879]

Answer:

$8x^2+8y^2-79x-32y+95=0$

Step-by-step explanation:

Let the equation be : $x^2+y^2+2gx+2fy+c=0$

The point (1,1) must satisfy this equation.

$1^2+1^2+2g*1+2f*1+c=0\\2g+2f+c=-2---(1)$

Similarly, the point (1,3) must satisfy:

$1^2+3^2+2g*1+2f*3+c=0\\1+9+2g+6f+c=0\\2g+6f+c=-10---(2)$

Also for the point (9,2), we have:

$9^2+2^2+2g*9+2f*2+c=0\\81+4+18g+4f+c=0\\18g+4f+c=-85---(3)$

Solving the equations (1), (2) and (3) simultaneously, we get:

$g=-\frac{-79}{16},f=-2,c=\frac{95}{8}$

We Substitute this values to get:

$x^2+y^2+2(\frac{-79}{16})x+2(-2)y+\frac{95}{8}=0$

$x^2+y^2-(\frac{79}{8})x-4y+\frac{95}{8}=0$

Multiply through by 8 to get:

$8x^2+8y^2-79x-32y+95=0$

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3 years ago

Which of the following are measures of complementary angles?

alekssr [168]

Complementary angles add up to 90 degrees. Therefore, the answer is c. 18 + 72 = 90

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Order of operation pratice solve 12[2+7)-24/12

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Bed mass. 12(9)-24/12, 12(9)-2, 108-2 = 106

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How are equivalent fractions used in renaming when subtracting?

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It is used by turning it into a mixed number

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There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing

zheka24 [161]

25 total marbles, 17 red plus green, so id say d) 68%

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2 years ago

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