3 years ago

70 POINTS WILL RATE BRAINIEST!! DO ONE PROBLEM

Mathematics

1 answer:

stealth61 [152]3 years ago

6 0

Answer:

1= metal plates. They take up more surface area.

Step-by-step explanation:

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Find the volume of a cone with a diameter of 5.5 km

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Answer:

$volume = \frac{1}{3} \pi {r}^{2} h \\ = \frac{1}{3} \times \frac{22}{7} \times {( \frac{5.5}{2}) }^{2} \times 11.2 \\ = 88.7 \: {km}^{3}$

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2 years ago

(b) Out of 200 students in an examination of class IX, 140 passed in Maths, 120 passed in Scien

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Answer:

n(U)=200

n(M)=140

n(S)=120

n(MuS)complement=40

n(MuS)=n(U)-n(MuS)complement

=200-40

=160

n(MnS)=n(M)+n(S)-n(MuS)

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3 years ago

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Which of the following could be used to calculate the area of a sector in the circle shown below

lara [203]

Answer:

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Step-by-step explanation:

Given:

Radius = r = 8 in

θ = 42°

To Find:

Area of Sector = ?

Solution:

We know that

$\textrm{Area of Sector}=\pi (Radius)^{2}\times \frac{\theta}{360}$

Substituting the given values in the formula we get

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Which is the required Answer.

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

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2 years ago

HELPP PLSSSS NO BOTS OR I WILL REPORT!!!

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Answer:

B. false

Step-by-step explanation:

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A figure is shown with parallel lines a and b. What is the measure, in degrees, of ∠r?

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Answer:

42 degrees

Step-by-step explanation:

48 and r are equal.

The box means right angle, or 90 degrees

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2 years ago

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