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3 years ago

A bird descends at the rate of 10 ft/min. How long will it

Mathematics

2 answers:

MakcuM [25]3 years ago

8 0

Answer:

30 minutes

Step-by-step explanation:

300/10= 30

Hope this helps! :)

Rufina [12.5K]3 years ago

3 0

It would take 30 minutes for the bird to reach the ground if it is flying at 300ft

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Solving for x... please help me....

geniusboy [140]

Answer:

A) 11

Step-by-step explaination:

CE = 2x - 2

CE = CD + DE

= x + 9

Hence it can be said that,

2x - 2 = x + 9

2x - x = 9 + 2

x = 11

6 0

3 years ago

A ladder 15 feet long leans against the top of a structure at a 60 degree angle to the ground. What is the height of the buildin

Goshia [24]

Answer:

height of the building is 12.99 feet.

Step-by-step explanation:

given, try to analyse:

ladder 15 feet long.
60 degree angle to the ground.

the height of the building is opposite to the angle 60° and given hypotenuse, the ladder of 15 feet long.

using sine rule:

$sin(x) = \frac{opposite}{hypotenuse}$

$sin(60) = \frac{opposite}{15}$

$opposite = sin(60) *15$

$opposite = 12.99feet$

Therefore the height of the building is 12.99 feet.

7 0

2 years ago

Read 2 more answers

Heart beats 2,320 times during 20 minutes of rowing. While resting the heart is beating 16 times in 15 seconds. What is the diff

Mrac [35]

Answer: 0.87 times per second (Or 52.2 times per minute)

Step-by-step explanation:

You need to make the conversion from minutes to seconds.

Remember that 1 minute has 60 seconds. Then 20 minutes to seconds is:

$(20minutes)(\frac{60seconds}{1minute})=1,200seconds$

Find the number of times the heart beats in 1 second when it is rowing:

$x_1=\frac{(2,320times)}{1,200seconds}=1.93\ times\ per\ second$

Find the number of times the heart beats in 1 second when it is resting:

$x_2=\frac{(16times)}{15seconds}=1.06\ times\ per\ second$

Then the difference is:

$difference=(1.93-1.06)\ times\ per\ second\\difference=0.87\ times\ per\ second$

(Or 52.2 times per minute)

6 0

3 years ago

Read 2 more answers

PLS HELPPPPPPPPPPPPP

Doss [256]

Answer:

Step-by-step explanation:

They have the same angle measure because the angles are corresponding angles.

6 0

3 years ago

The local grocery store sells different sizes of peanut butter. Find the unit prices for each size container, and then identify

Maslowich

4.20/12 = 0.35$
6.19/16.3= 0.38$
8.40/28 = 0.30$
21.12/64 = 0.33$

Answer:
The best deal is the 28oz container of peanut butter.

7 0

3 years ago