3 years ago

Can you help me with my math work?

Mathematics

1 answer:

liraira [26]3 years ago

7 0

Answer:

there is no paper

Step-by-step explanation:

please mark me as brainliest thank you

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2 angles are complementary. One of the angles is 30 degrees. The other has a label of 5n + 20. What would "n" have to be?

Liula [17]

Answer:

Step-by-step explanation:

complementary angle of 30°=60°

5n+20=60

5n=60-20

5n=40

n=40/5=8

4 0

3 years ago

If $18\sqrt 8-8\sqrt{18}=\sqrt n$, what is $n$?

Hunter-Best [27]

Answer:

Step-by-step explanation:

$18\sqrt{8}-8\sqrt{18}=\sqrt{n}\\ \\ 36\sqrt{2}-24\sqrt{2}=\sqrt{n}\\ \\ 12\sqrt{2}=\sqrt{n}\\ \\ \sqrt{288}=\sqrt{n}\\ \\ n=288$

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3 years ago

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The angle between the generator and the central axis of a double-napped cone is 60°. A plane intersecting the cone makes an angl

rusak2 [61]

Answer:

hyperbola

Step-by-step explanation:

given data

double-napped cone = 60°

plane intersecting cone angle = 50°

solution

conic section is formed hyperbola because here plane intersecting the cone makes an angle of 50° is less than angle b/w generator and central axis of 50°

so correct answer is hyperbola

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3 years ago

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If I have 11 girls and 16 boys in my class,What percent of my class is girls?

emmasim [6.3K]

Answer:

around 40.74%

Step-by-step explanation:

11+16=27

27=100%of class population

11/27= around 40.74%

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3 years ago

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Find the surface area of a cuboid whose sides are 3cm by 6cm by 10cm

Brilliant_brown [7]

Answer:

216 cm²

Step-by-step explanation:

Use the formula for the surface area of a cuboid.

SA = 2lw + 2lh + 2hw

2(6)(3) + 2(6)(10) + 2(10)(3)

36 + 120 + 60

= 216

The surface area of the cuboid is 216 cm².

3 0

3 years ago