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3 years ago

I need help with all 4 of these . And I do need to show work for all of them

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

Answer:

Step-by-step explanation:

11) Profit = Selling price - purchase price - other expenses

$= (2000*7)-12780-26=1194$

12) Profit = Selling price - purchase price - other expenses

$=52.25(550)-28275-32=430.50=430$ (after rounding off)

13) Annual interest on bond

=INterest rate on face value of bond for 1 year

$=2000(6%)=120$

14)Cost of bond

= quoted value (rate)

=3500(80.5)

=2817.50

15) Cost of bond

= quoted value (rate)

=4250(83.5)

=3548.75

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A=8, b=5, C=90 degree; Find c, A, and B<br><br> This is for the law of sine and cosine

brilliants [131]

Answer:

• c = √89 ≈ 9.434

• A = arcsin(8/√89) ≈ 57.995°

• B = arcsin(5/√89) ≈ 32.005°

Step-by-step explanation:

By the law of cosines, ...

c² = a² + b² -2ab·cos(C)

Since c=90°, cos(C) = 0 and this reduces to the Pythagorean theorem for this right triangle.

c = √(8² +5²) = √89 ≈ 9.434

Then by the law of sines (or the definition of the sine of an angle), ...

sin(A) = a/c·sin(C) = a/c = 8/√89

A = arcsin(8/√89) ≈ 57.995°

sin(B) = b/c·sin(C) = b/c = 5/√89

B = arcsin(5/√89) ≈ 32.005°

6 0

3 years ago

In a class 32 students, 4students we're homesick with the flu on Thursday. what percentage of the students were absent on Thursd

Fynjy0 [20]

Answer:

12.5%

Step-by-step explanation:

4 * 100 / 32 = 12.5

6 0

2 years ago

Each section of a race is 25 mile. the race has 4 sections.

In-s [12.5K]

The answer is to that is 100
25times 4

5 0

3 years ago

The antlantic ocean region contains approximately 2 times 10^16 gallons of water. Lake Ontario has approximately 8,000,000,000,0

AnnyKZ [126]

2.5x10^3 I think. Exponents are subtracted. The number you're multipliying by has to be more than one.

4 0

3 years ago

What percent of 75.5 is 81.54

lutik1710 [3]

If you would like to know what percent of 75.5 is 81.54, you can calculate this using the following steps:

x% of 75.5 is 81.54
x% * 75.5 = 81.54
x/100 * 75.5 = 81.54
x = 81.54 * 100 / 75.5
x = 108%

Result: 108% of 75.5 is 81.54.

8 0

2 years ago