4 years ago

If the point (1, 5) lies on a circle whose center is at the origin, what is the equation of the circle?

1 answer:

3 0

In this case just change the variables by the numbers. (1,5)
x=1 y=5
1^2 + 5^2 = 26
1+25=26
26=26 *this one is the answer...
TRUE

x2 + y2 = 16
1^2 + 5^2=16
1+25=16
26=16
False

x2 + y2 = 13
1^2 + 5^2=13
1+25=13
26=13
False

x2 + y2 = 11
1^2 + 5^2=11
1+25=11
26=11
False

So we can say that the first one is the answer.

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Laura has $30 to spend on food for the week. Which inequality represents this? x < 30 x < 30 x > 30 x > 30

steposvetlana [31]

In the given question Laura has $30 to spend on food for the week.

According to the question we have to set the inequality between total amount and amount spent on food.

Amount spend by Laura on food for the week = $30

Let the amount spent by Laura on food be x

So she has to spend up to $30

So inequality will be $x\leqslant 30$