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2 years ago

How do I find how many square inches a circle has?

Mathematics

2 answers:

aleksklad [387]2 years ago

4 0

Pi times the radius squared

ella [17]2 years ago

3 0

Pi * r^2

pi times the radius (r) squared

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Add.<br> -1 + 2 = 1<br> - 6 + (-5)

Masteriza [31]

Answer:

-6 + -5 = -11

Step-by-step explanation:

8 0

2 years ago

What is the x coordinate of the intersection of y=4x-10 and y=(x-2) to the power of 2 +2

aleksley [76]

Answer:

Step-by-step explanation:

Equating the y-values gives an equation in x.

4x -10 = (x -2)^2 +2

0 = x^2 -4x +4 +2 -4x +10 . . . . . . . . eliminate parentheses, subtract 4x-10

x^2 -8x +16 = 0

(x -4)^2 = 0

x = 4

The x-coordinate of the one point of intersection is x = 4.

6 0

3 years ago

a bag contains 5 red skittles, 3 purple skittles, and 2 orange skittles.A skittle is removed and not replaced, then another skit

dybincka [34]

The probability of two independant events $P_a$ and $P_b$ can be found by multiplying the individual probabilities like so:
$P_t=P_{a}*P_b$

For each individual probability we can find the answer via a simplfied representation:
$P_x = \frac{wanted}{total}$

For the first skittle (red) we have:
$P_{red} = \frac{red}{total}=\frac{5}{10}=0.5$

For the second skittle (orange) we have:
$P_{orange} = \frac{2}{9} = 0.2222...$
**(Notice that the total is now NINE since we didn't put the first red one back in the bag.)

So:
$P_{total} = P_{red} \times P_{orange}$
$P_{total} = \frac{5}{10} \times \frac{2}{9}$
$P_{total} = \frac{10}{90}=\frac{1}{9} \approx 0.1111 \approx 11.11\%$

7 0

3 years ago

1300 people attended a football game. If 4% of the people who attended were teenagers, how many teenagers attended the game?

aliya0001 [1]

Answer:

14 teenagers attended the game.

Step-by-step explanation:

6 0

2 years ago

Factorise -x-5 please thanks xx

Elena L [17]

Answer:

- x - 5 = -(x + 5) = (-1)×(x + 5)

8 0

3 years ago