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3 years ago

Please help i put the pictures down low, I really need it.

Mathematics

1 answer:

SVEN [57.7K]3 years ago

4 0

Part A
.. (480 books)/(5 cartons) = 480/5 books/carton = 96 books/carton

Part B
.. (7440 dollars)/(480 books) = 7440/480 dollars/book = $15.50 for 1 book

Part C
.. (2 minutes)/(48 books) * (200 books) = 400/48 minutes
.. = 8 minutes 20 seconds

Part D
In 9 minutes, the worker unpacked
.. (48 books)/(2 minutes)*(9 minutes) = 216 books
In 9 minutes, the manager upacked
.. (54 books)/(3 minutes)*(9 minutes) = 162 books

We note that 216 -162 = 54.

The worker unpacked 54 more books in 9 minutes than the manager did.

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Trigonometry:

Trava [24]

A. The approximate height of the building is 100 m

B. We can use the arc length formula to obtain an approximation of BC since angle A is small.

The approximate height of the building is 100 m

To find the approximate height of the building, we consider the diagram.

From the diagram, we have that using trigonometry,

tanA = BC/AB

Now

A = 0.05 radians,
BC = height of building and
AB = 2 km = 2000 m

<h3 /><h3>Finding the value of BC</h3>

So, making BC subject of the formua, we have

BC = ABtanA

Substituting the values of the variables into the equation, we have

BC = ABtanA

BC =2000tan0.05

BC = 2000 × 0.05

BC = 100 m

So, the approximate height of the building is 100 m

We can use the arc length formula to obtain an approximation of BC since angle A is small.

<h3 /><h3>Arc Length Formula</h3>

We know that the arc length formula L = rФ where

r = radius and
Ф = angle in radians

<h3 /><h3>The approximate height</h3>

Now BC = ABtanA

We know that Ф ≅ tanФ when Ф is small.

<h3 /><h3>The comparison</h3>

So, BC = AB × A which is the arc length formula with

L = BC,
r = AB and
Ф = A

So, we can use the arc length formula to obtain an approximation of BC since angle A is small.

Learn more about approximate height of building here:

brainly.com/question/3144976

7 0

2 years ago

The length of the major axis of the ellipse below is 17 and the length of the red line segment is 6. How long is the blue line s

KatRina [158]

Answer:

<u>Option B. 11</u>

Step-by-step explanation:

See the attached figure

As the figure about an ellipse

So, The sum of distance between A and the foci will be equal the major axis

AB = 6 and the major axis = 17

∴ AB + AC = major axis

∴ 6 + AC = 17

∴ AC = 17 - 6 = 11

<u>So, the length of the blue line segment = 11</u>

5 0

3 years ago

Plz help.. plzz if you can

Mazyrski [523]

Answer:

C is a function

Step-by-step explanation:

We can use the vertical line test. If a vertical straight lines passes through the graph more than one, it is not a function

A and B are not functions

C is a function

5 0

3 years ago

15% of 620 I need help

iVinArrow [24]

Answer:

Step-by-step explanation:

15%=.15

.15 times 620 equals 93

3 0

3 years ago

Read 2 more answers

Determine the answer to -3 + (-5) and explain the steps using a number line

DanielleElmas [232]

-10 -9 -8 -6 -5 -4 -3 -2 -1 0 1 2 3 4

Go back -5 places and you will land on the answer of -8

Hope this helps! :)

6 0

3 years ago

Read 2 more answers