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3 years ago

MONDAY 1. start time: 4:15 finish time: 5:05 time in between:

Mathematics

2 answers:

garri49 [273]3 years ago

8 0

50 is correct answer

ella [17]3 years ago

6 0

Answer:

50 minutes

Step-by-step explanation:

We know there is 60 minutes in an hour. so if we do 4:15 + 50 minutes, it reaches 5:05 minutes.

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Please help me this is a test

Pepsi [2]

Answer:

B. 2

Step-by-step explanation:

For x = 2, w(x) = 3, t(x) = - 1

w(x) + t(x) = 3 + (-1) = 3 - 1 = 2

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3 years ago

Can you find the area

yaroslaw [1]

Area = 45 + 90
Answer: 135

7 0

3 years ago

Read 2 more answers

I need some help with this. If you could help me, that would be great.

Vesnalui [34]

Answer:

.31 g / mL

Step-by-step explanation:

Density = mass / volume

Sample 3

mass = 7 1/4 = 7.25

Volume 23.1

Density = 7.25/ 23.1 = .313852814

To the nearest hundredth

.31 g / mL

8 0

3 years ago

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

Help and explain <br><br> Find the area of the circle <br> Use 3.14 for. Do not round your answers

tino4ka555 [31]

Answer:
3.14x8^2= 200.96

6 0

3 years ago