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2 years ago

9

A hummingbird flaps its wings 1500 times per minute while airborne. While migrating south in the winter, how many times during a

1.5 hour flight does the hummingbird flap its wings? (reminder- to get the extra credit you MUST attach work)
p.s. i need the work to how to do it

1 answer:

sergey [27]2 years ago

5 0

Answer:

135,000

Step-by-step explanation:

1.5 hour means 90 minutes

1500 * 90 = 135000

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Plz help will be thanked and will pick brainly

arsen [322]

Answer:

275 units^2

Step-by-step explanation:

The formula for the area of trapezoid is:

Area=((b1+b2)/2)*h

In the given trapezoid, as it can be seen

b1=16

h=11

The lower base will be calculated using all the lengths in the lower base

b2=9+16+9

b=34

Putting the values in formula

Area=((16+34)/2)*11

Area=(50/2)*11

Area=25*11

=275 units^2

6 0

3 years ago

A manufacturer produces televisions. He estimates that by selling them for x dollars each, he will be able to sell 230 – 3x each

poizon [28]

Answer:

Price per television =38.30

Step-by-step explanation:

Number of units sold in one week =230-3x

Price of one unit =x

Total money produced in one week =x(230 - 3x)

(Here it doesn't matter total money is taken for a week or day because after differentiating and equating to zero that factor disappear )

Differentiate total amount with respect to x.

$\frac{dM}{dt}=230-6x$

Now equate it equal to zero to get extremum.

230-6x=0

Then, x = 38.30

5 0

3 years ago

The time a traffic light remains yellow is one second more than 0.05 times the speed limit. What is the yellow time for a traffi

weqwewe [10]

30 * 0.05 + 1 = X
1.5 + 1 = X
2.5 = X

The light remains yellow for 2.5 seconds on a street with a speed limit of 30.

4 0

2 years ago

3. Galshore of Maloat is making a journey from the island of Gont to Oranea. The distance from the two lands is 965 miles. Galsh

USPshnik [31]

Answer:

3. about 7.48 hours

4. about 1.8892 hours

Step-by-step explanation:

Both of these questions make use of the relation ...

time = distance / speed

3. time = (965 mi)/(129 mi/h) ≈ 7.48062 h ≈ 7.48 h

__

4. time = (612.1 mi)/(324 mi/h) ≈ 1.889198 h ≈ 1.8892 h

(We have rounded the time to sufficient precision so that the distance at the given speed rounds to the number given.)

3 0

3 years ago

(time limit!) what is the volume below?<br><br>A) 112 <br>B) 224 <br>C) 784 <br>D) 896

Radda [10]

To find a volume of a cylinder we use the following formula:
$v = \pi {r}^{2} h$
Plug in the values:

$v = \pi \times {8}^{2} \times 14$
Take the square:
$v = \pi \times 64 \times 14$
Multiply the numbers:
$v =896 \pi {m}^{2}$

8 0

3 years ago