Answer:
your answers are correct
Step-by-step explanation:
25/250 = 1/10
I do not know that much english. I an spanish so I might have done it wrong.
Answer:
OD) 4.9 units, 14.2 units
<em> The lengths of the legs of a right triangle</em>
<em> </em>a = 4.9units , b = 14.2units and hypotenuse 'c' = 15
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the Acute angle is 19°
And hypotenuse (AC ) = c= 15
We will take cos∝ =
⇒
⇒ BC = 15 × cos 19°
⇒ BC = 15 ×0.9455
⇒ BC = 14.18
The length of the one leg of the right angle triangle
BC = b = 14.18≅ 14.2
We know that ΔABC is a right angle triangle
a² = c² - b²
= 15² - (14.18)²
= 225 - 201.07
= 23.93
a² = 23.93
a = √23.93 = 4.89≅4.9
<u><em>Final answer:-</em></u>
<em> The lengths of the legs of a right triangle</em>
<em> </em>a = 4.9units , b = 14.2units and hypotenuse 'c' = 15
If you divide 2380 by 4, it will give you 10% of the whole:
1380/4=345
Then you can times 345 by 6 To find the 60%:
345*6=2070
PS Please check my calculations with a calculator as I worked these out in my head.
F'(x) = 3ax^2 + 12x + b .............(1)
Applying the formula for solving any quadratic leads to two equations:
(-12 + sq rt(144 - 12ab))/6a = 2 .................(2)
(-12 - sq rt(144 - 12ab))/6a = -1 .................(3)
Adding equations (2) and (3) , we get:
-24/6a = 1
a = -4
Plugging the value a = -4 into equation (2) and solving for b, we get:
b = 24.
The answer is: a = -4, b = 24.