This circle is centered at the origin, and the length of its radius is 8. What is

1 answer:

5 0

Answer: The equation of a circle with center (h,k) and radius r is given by (x−h)2+(y−k)2=r2 . For a circle centered at the origin, this becomes the more familiar equation x2+y2=r2

Step-by-step explanation:

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rosijanka [135]

Answer:

Step-by-step explanation:

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3 years ago

State whether the data described below are discrete or continuous, and explain why. The exact mass (in grams )of food eaten by

NARA [144]

Answer:

A. The data are continuous because the data can take on any value in an interval.

Step-by-step explanation:

The data surveyed is the exact mass, in grams, of food eaten by each person each day.

This type of data is continous, not discrete. The mass can take any value within the domain of positive real numbers. It represents a physic variable, and they are always continous.

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3 years ago

Evaluate the expression 6+[(-24)÷6]/19

zlopas [31]

The order of operations is defined by the acronym PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction).
Therefore
6 + [(-24) ÷ 6] / 19
= 6 + [ -24/6 ] / 19 handle parentheses first
= 6 + (-4) /19
= 6 - 4/19 handle division
= 110/19
= 5 5/9

Answer:
$\frac{110}{19} \,\, or \,\, 5 \, \frac{5}{19} \,\, or \,\, 5.79$

4 0

3 years ago

Solve the simultaneous equations x + 6y = 20 x + 3y = 14 x = Y=

xxTIMURxx [149]

Answer:

x = 8, y = 2

Step-by-step explanation:

Multiply the second equation by -2:

x + 6y = 20

-2x - 6y = -28

Add the equations and simplify:

-x = -8