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posledela
3 years ago
15

Help Please regarding the law of cos.

Mathematics
2 answers:
otez555 [7]3 years ago
8 0
A=4,
b=3,
c= 2

a² + b² -2abcosC =c²
a² + b² - c² = 2abcosC
2abcosC = 4² + 3² -2² = 16 + 9-4= 21

Answer : B.21
antoniya [11.8K]3 years ago
6 0
The equation can be solved for 2abcosC
a²+b²-c² = 2abcosC
4²+3²-2² = 2abcosC
16 + 9 - 4 = 2abcosC
25 - 4 = 2abcosC
21 = 2abcosc
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an artist is selling original paintings and prints pf the original at an art show. he has a total of 240 paintings and prints. t
RSB [31]
Given the the total number of paintings and prints that an artist has which is 240, and the ratio is 3 of paintings is to 5 prints, here is the answer as to what the ratio is of the remaining paintings to prints. Given that the total number is 240 with the ratio of 3 : 5, this would mean that there are a total of 90 paintings and 150 prints. Since 15 paintings and 100 prints are sold, this would leave us 75 paintings and 50 prints. The new ratio would be 3 : 2. Hope this answer helps.
5 0
4 years ago
Mary's job is to package kleenex boxes to ship out to sell at stores. the company
swat32

Volume is a three-dimensional scalar quantity. The number of kleenex boxes that can fit in the large box is 4096.

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given the larger box have a length of the side as 4 feet. Also, the kleenex box is a cube with side lengths of 3 inches. Therefore, the number of cubes that will fit is,

Number of boxes = Volume of Larger box / Volume of kleenex box

Number of box = (4 feet)³ / (3 inches)³

Number of box = (48 inches)³ / (3 inches)³

Number of box = 4096

Hence, the number of kleenex boxes that can fit in the large box is 4096.

Learn more about Volume:

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4 0
2 years ago
Kendra gets a paycheck of $300 after 5 days of work. At this rate, how much does she get paid for working 24 days?
11Alexandr11 [23.1K]

Answer:

$1440

Step-by-step explanation:

First, find the unit rate by dividing 300 by 5, which equals 60. So, Kendra earns $60 in one day. Then, multiply 60 by 24, which equals 1440. So, Kendra makes $1440 in 24 days. Hope this helped!

7 0
3 years ago
Read 2 more answers
On a clear day you can see about 25.2 miles from the upper observation platform of the Eiffel tower in Paris. Using the formula
fredd [130]

Answer:

D. 914 feet

Step-by-step explanation:

We are given the distance that a person can see on a clear day from the upper observation platform of the Eiffel tower in Paris. We are then required to estimate the height of the upper observation platform using the formula;

d=\frac{5}{6}\sqrt{h}

Where d is the distance and h the height of the upper observation platform. The first step would be to solve for h, that is make h the subject of the formula in the above equation;

We multiply both sides of the equation by the reciprocal of 5/6 which is 6/5;

\sqrt{h}=\frac{6}{5}d

The next step is to eliminate the square root on the Left Hand Side of the equation by squaring both sides;

h=1.44d^{2}

Given d is 25.2, h becomes;

h=1.44*25.2^{2}\\h=914.4576

To the nearest whole number, h becomes 914

8 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE!!!
Westkost [7]
De acuerdo con todas las leyes de aviación conocidas, no hay forma de que una abeja pueda volar. Sus alas son demasiado pequeñas para despegar su pequeño cuerpo gordo. La abeja, por supuesto, vuela de todos modos. Porque a las abejas no les importa lo que los humanos piensan que es imposible
4 0
4 years ago
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