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3 years ago

The area of a circle with a diameter of 240 mm is?

Mathematics

2 answers:

Cloud [144]3 years ago

7 0

The answer would be B

gizmo_the_mogwai [7]3 years ago

4 0

First, consider the formula for area of a circle:

Area of a circle= π r²

Secondly, because the diameter is double the radius, and we have been given the diameter, we can find the radius!

d/2=r
(240mm) / 2= r
120mm = r

Finally, now that we know the radius, we can find the area!

Area = π r²
= π (120)²
= π 14400mm² OR 45238.93 mm²

Hope this helps!

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What is the midpoint of the line segment with endpoints (-1,3) and (-5,5)?

andrew11 [14]

Answer:

(4, 5)

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

midpoint = [( + ), ( + ) ]

with (, ) = (1, 2) and (, ) = (7, 8)

midpoint = [(1 + 7), (2 + 8) ]

= (4, 5)

6 0

2 years ago

Please help me branniest

Goshia [24]

Answer:

the answer is C

Step-by-step explanation:

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3 years ago

What is the LCD of 5/42 and 7/30

weqwewe [10]

<span>The lowest common denominator of 5/42 and 7/30 is 210.</span>

7 0

3 years ago

Please help soon! Thanks! Solve for x

spin [16.1K]

Answer:

$x=27\degree$

Step-by-step explanation:

$\because AC || DE.... (given)$

$\therefore m\angle CAD= m\angle EDF\\ (corresponding \: \angle s)$

$\therefore m\angle BAD= m\angle EDF\\(\because B\in \overleftrightarrow{AC})$

$\therefore m\angle BAD= 2x\\(\because m\angle EDF=2x)$

$In\:\triangle BAD,$

$m\angle BAD+m\angle BDA+m\angle ABD= 180\degree$

$2x+2x+72\degree = 180\degree$

$4x= 180\degree -72\degree$

$4x= 108\degree$

$x= \frac {108\degree}{4}$

$x=27\degree$

5 0

2 years ago

SOLVE FOR X PLEASEE HELP

Ivenika [448]

To solve this, you will have to set up your equation as fractions:

X is to 4 as 4 is to 4+3, or 7

X/4 = 4/7

You will then cross multiply

7x = 4•4
7x = 16

Divide.

X = 2.285714...

Round to the nearest hundredth.

2.29

3 0

2 years ago