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viktelen [127]
3 years ago
12

Right angle triangle ABC right angled at B what is the ratio of Sin A​

Mathematics
1 answer:
Feliz [49]3 years ago
7 0

Step-by-step explanation:

Sin A= opp/hyp

Sin A= BC/AC

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Simplify (6x-5)-(7x-4)
mrs_skeptik [129]

Answer:

(6x-5)^2

Step-by-step explanation:

8 0
3 years ago
. There are 200 different pieces of fruit in a barrel. There are 42 apples, 82 oranges, and 76 pears. Which of the following eve
leonid [27]

Answer:

A and C

Step-by-step explanation:

42/200 = .21

76/200 = .38

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3 years ago
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What are the dimensions of the new room, in inches, on the blueprint? What will the dimensions of the new room be, in feet, in t
Ainat [17]

Answer:

Lay the proper scale next to the item on the drawing and take the measurement. The scale will translate for you. As an example, a 1/4 inch = 1 foot architect scale will have markings that increase by 1 foot every 1/4 inch; a 4 foot wall is represented by a 1-inch length, if measured with a conventional ruler.

Step-by-step explanation:

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3 years ago
Mr. Wonka optimized your team’s box to maximize chocolate bar sales. The new volume is (x^3-9x) inches ^3, the length is (x+3) a
lyudmila [28]

Answer:

x^2-3x

Step-by-step explanation:

If we use polynomial division

          x^2-3x

x+3 | x^3+0x^{2} -9x

         <u> </u>x^3+3x^2<u>               </u>

                -3x^2-9x

         <u>       </u>-3x^2-9x<u>      </u>

                            0

8 0
3 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
Y_Kistochka [10]

Answer:

<h3>After 1st Dose:</h3>

As Sophie has just taken the medicine, the quantity of drug present in her body is 500mg

<h3>After 2nd Dose:</h3>

Amount left from 1st dose = 4.5/100 × 500 = 22.5mg

Amount of Drug after 2nd dose = Amount left from 1st dose + 2nd dose taken.

Amount of Drug after 2nd dose = 22.5mg + 500mg

Amount of Drug after 2nd dose = 522.5mg

<h3>After 3rd Dose:</h3>

Amount left from 2nd dose = 4.5/100 × 522.5 = 23.513 mg

Amount of Drug after 3rd dose = Amount left from 2nd dose + 3rd dose taken.

Amount of Drug after 3rd dose = 23.513mg + 500mg

Amount of Drug after 3rd dose = 523.513 mg

<h3>After 4rth Dose:</h3>

Amount left from 3rd dose = 4.5/100 × 523.513 = 23.558mg

Amount of Drug after 4rth dose = Amount left from 3rd dose + 4rth dose taken.

Amount of Drug after 4rth dose = 23.558mg + 500mg

Amount of Drug after 4rth dose = 523.558 mg

<h3>Highest Amount:</h3>

The pattern formed above can be written in the form of sum of finite geometric series:

Sₙ = 500 + 500(0.045) +500(0.045)² + ........................500(0.045)ⁿ

Sₙ = 500(1 + 0.045 + 0.045² ........................0.045ⁿ)

Where

Sₙ = Sum till nth term

a = 500

r = 0.045

As Sophia takes medicines 2 times a day, she takes medicine 20 times in 10 days. So substitute n=20 in the formula for the sum of finite geometric series

S_n=a\frac{(1-r^n)}{1-r}\\S_{20}=500(\frac{1-0.045^{20}}{1-0.045})\\S_{20}=523.5602~\text{mg}

Greatest amount of antibiotic present = 523.5602 mg

This amount is almost constant after 3rd dose, so it will occur after every dose after 3rd dose

<h3>Drug present in body at different points:</h3>

After 1st dose = 500mg

After 2nd dose = 522,5mg

After 3rd dose = 523.513 mg

After the the amount left in the body almost remains constant.

Which means that after each dose, the amount in body is maximum, at the end of the 12 hours, the amount reduces to 4.5%, which reaches almost the same maximum after taking another dose.

5 0
3 years ago
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