2 years ago

Help plz I dont know how to do these

Mathematics

1 answer:

qaws [65]2 years ago

5 0

I believe it's c. sorry if it's not it's been a while

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Triangle+ Triangle + Triangle = 30 Triangle + circle + circle = 20 Circle + Square + Square = 13 Triangle + circle x half square

Rasek [7]

Answer: 20
Explanation: triangle=10 , circle= 5 , square= 4 , half square = 2....... 5 x 2 = 10 plus 10 = 20:)

4 0

1 year ago

If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc?

adell [148]

Area = pi * r^2
A = 3.14 * 7.6^2
A = 181.37

In short, Your Answer would be 181.37 cm^2

Hope this helps!

7 0

2 years ago

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The spherical bottle has a conical shaped lid with a diameter of 5cm and a height of 4.5cm. Given this information, calculate th

Harlamova29_29 [7]

Answer: Volume of lid = 29.44 cubic cm and surface area = 40.41 cubic cm.

Step-by-step explanation:

Given: For lid of the spherical shaped bottle,

Diameter = 5 cm

Height = 4.5 cm

Radius = Half of diameter = 2.5 cm

Volume of cone = $\dfrac13\pi r^2 h$

Volume of lid $=\dfrac13(3.14)(2.5)^2(4.5)=29.4375\approx29.44\text{ cm}^3$

Surface area of cone = $\pi r\sqrt{h^2+r^2}$ [as lide has no base we don't include area of base.]

Surface area of lid = $(3.14)(2.5)\sqrt{(2.5)^2+(4.5)^2}= 7.85\sqrt{26.5}\approx40.41\text{ cm}^3$

Hence, volume of lid = 29.44 cubic cm and surface area = 40.41 cubic cm.

7 0

2 years ago

Is 3/8 estimated to be closer to 0 or 1?

kolezko [41]

The cut-off point is 0.5: higher than this would be closer to 1, and lower would be closer to 0

and 3/8 is lower than 0.5: we know this because a bigger number, 4/8 is equal to 0.5

so it's closer to 0!

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2 years ago

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PLEASE HELP ME!! DUE IN 10 MINS!! WILL MARK BRAINLYEST!!

bazaltina [42]

The answer is B
Hope it helps

8 0

2 years ago