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3 years ago

Find the value of each trigonometric ratio!! Pls hurry!!!

Mathematics

1 answer:

Likurg_2 [28]3 years ago

4 0

tan A is 4/3

use sohcahtoa

Angle a is 53.130 if you need it

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Michael timed a train using a clock. the train traveled a distance of half mile from t = 10 seconds to t = 55 seconds. what was

Alekssandra [29.7K]

Answer:

Step-by-step explanation:

The train traveled half a mile.

1 mile = 5280 ft

0.5 mile = 0.5 * 5280 ft = 2640 ft

A time from 10 sec to 55 sec is 55 sec - 10 sec = 45 seconds.

2640 ft in 45 seconds

speed = distance/time

speed = 2640 ft / 45 sec = 58.6666... ft/sec

Answer: speed = 58.7 ft/sec

3 0

2 years ago

Question 20 please make (x) the subject of the formula

Masja [62]

Answer:

The answer is

$\frac{ {x}^{2} - n}{m} = { (\frac{ {a}^{2} }{b}) }^{a} \\ {x}^{2} - n = m{( \frac{ {a}^{2} }{b} })^{a} \\ {x}^{2} = m {( \frac{ {a}^{2} }{b} )}^{a} + n \\ x = \sqrt{m {( \frac{ {a}^{2} }{b}) }^{4} - n}$

Step-by-step explanation:

I am a math teacher. If you need any explanation you in mathematics you can communicate with me on Whats on this number 01557831028

3 0

2 years ago

A shirt is originally priced at $19.99. it was marked down 25%. what is the sale price?

Bond [772]

Answer:

Final price: $14.99

Step-by-step explanation:

Discount= original price x discount % / 100

Discount= 19.99 x 25/ 100

Discount= 499.75/100

You save= $4.9975

Final Price= original price - discount

Final price= 19.99 - 4.9975

Final Price= $14.9925

Final Price= $14.99

8 0

2 years ago

If a certain canon is fired from a height of 8.9 m above the ground, at a certain angle, the height of the Campbell above the gr

qwelly [4]

Answer:

T=5.9235 seconds

Step-by-step explanation:

$H(T)= -4.9T^2+27.52T+8.9.$

The time it takes for the cannonball to strike the ground is the point at which H(T)=0

$H(T)= -4.9T^2+27.52T+8.9.=0$

$-4.9T^2+27.52T+8.9=0$

This is a quadratic equation and since we have a bunch of decimals we use the quadratic formula:

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}$

a=-4,9, b=27.52, c=8.9

$T=\dfrac{-27.52\pm\sqrt{(-27.52)^2-(4*-4.9*8.9)} }{2*-4.9}\\=\dfrac{-27.52\pm\sqrt{757.3504-(-174.44)} }{-9.8}\\=\dfrac{-27.52\pm\sqrt{931.7904} }{-9.8}\\=\dfrac{-27.52\pm30.53 }{-9.8}\\T=-0.3071 \:or\: 5.9235\\T=5.9235 seconds$