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3 years ago

Plz help ASAP i need to be done at 3;40

Mathematics

1 answer:

malfutka [58]3 years ago

8 0

Answer:

Isosceles Acute Triangle

Step-by-step explanation:

Isosceles=2 sides that are equal (I saw 2)

Acute=3 acute angles (3<90)

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From a point A that is 8.20 m above level ground, the angle of elevation of the top of a building s 31 deg 20 min and the angle

Mariulka [41]

Answer:

30.11 meters ( approx )

Step-by-step explanation:

Let x be the distance of a point P ( lies on the building ) from the top of the building such that AP is perpendicular to the building and y be the distance of the building from point A, ( shown in the below diagram )

Given,

Point A is 8.20 m above level ground,

So, the height of the building = ( x + 8.20 ) meters,

Now, 1 degree = 60 minutes,

⇒ $1\text{ minute } =\frac{1}{60}\text{ degree }$

$20\text{ minutes }=\frac{20}{60}=\frac{1}{3}\text{ degree}$

$50\text{ minutes }=\frac{50}{60}=\frac{5}{6}\text{ degree}$

By the below diagram,

$tan ( 12^{\circ} 50') = \frac{8.20}{y}$

$tan(12+\frac{5}{6})^{\circ}=\frac{8.20}{y}$

$tan (\frac{77}{6})^{\circ}=\frac{8.20}{y}$

$\implies y=\frac{8.20}{tan (\frac{77}{6})^{\circ}}$

Now, again by the below diagram,

$tan (31^{\circ}20')=\frac{x}{y}$

$tan(31+\frac{1}{3})=\frac{x}{y}$

$\implies x=y\times tan(\frac{94}{3})=\frac{8.20}{tan (\frac{77}{6})^{\circ}}\times tan(\frac{94}{3})^{\circ}=21.9142943216\approx 21.91$

Hence, the height of the building = x + 8.20 = 30.11 meters (approx)

8 0

3 years ago

The school that Mike goes to is selling tickets to a play. On the first day of ticket sales the school sold 11 senior citizen ti

Alja [10]

Answer:

$3 for seinor citizen and $4 for student

Step-by-step explanation:

4 0

3 years ago

Is -11.16 a fraction or a mixed number

natita [175]

Neither it is a decimal.

7 0

4 years ago

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If dB=4 and dc=6 find ad

Neporo4naja [7]

See the attached figure
DB = 4 and DC = 6 , We need to find AD

Using Euclid's theorem for the right triangle

∴ DB² = AD * DC

∴ 4² = AD * 6

∴ 6 AD = 16


∴ AD = 16/6 = 8/3 ≈ 2.67

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3 years ago

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Buying a car

____ [38]

Answer:

16,000

Step-by-step explanation:

20,000 x .20 = 4,000

20,000 - 4,000 = 16,000

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4 years ago

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