3 years ago

How do you calculate the area of a circle with the diameter? what's the formula?

Mathematics

1 answer:

alexdok [17]3 years ago

3 0

Area of a circle is pi times the radius squared.

If you know the diameter, just divide it by 2 to get the radius.

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postnew [5]

Answer:

A and D

Step-by-step explanation:

Statisical questions have to deal with numbers

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Find (fog)(x) when f(x)=x^2-7x+12 and g(x)=3/x^2-16

Kazeer [188]

Answer:

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2 years ago

How many solutions do intersecting lines have?

Annette [7]

There is one solution that the intersecting lines have cause two solution doesn't have the same slope.

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3 years ago

If x^2 = 30, what is the value of x?

Lapatulllka [165]

$x= +\sqrt{30} ~or ~ -\sqrt{30}$
I'm not sure why ± that sybol isn't working
all together you can write $x=±\sqrt{30}$

Ughh just ignore the "A" symbol .-.

5 0

3 years ago

What is the slope of the line passing through the points (−3, 4) and (4, −1)?

Igoryamba

Note:
The slope of a straight line passing through the points (x₁, y₁) and (x₂, y₂) is
$m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

The two given points are (-3,4) and (4,-1). Therefore the slope is
$m= \frac{-1-4}{4-(-3)} = \frac{-5}{7}$

Answer: $- \frac{5}{7}$

3 0

3 years ago