Answer:
6
Step-by-step explanation:
square root of 144 is 12, square root of 4 is 2, square root of 16 is 4. SO your equation is now 12x 2 divided by 4. 12 times 2 is 24. Then divide 24 by 4 and you get 6. Therfore, your answer is 6.
Answer:
RS = 10
Step-by-step explanation:
We are told that to get ∆QRS, the scale factor of ⅖ was used. To get side RS, we would multiply the side length of the side that corresponds to RS.
YZ corresponds to RS.
YZ = 25
Thus,
RS = 25*⅖
RS = 10
The expression: sqrt ( 5 x² - 27 x + 10 )
A real number is a square root of a positive number.
x 1/2 = ( 27 +/- sqrt ( 729- 200 )) / 10
x 1/2 = ( 27+/- 23 ) / 10
x 1 = 4/10 = 0.4
x 2 = 50/10 = 5
Answer:
The expression is defined as a real number for:
x ∈ ( - ∞, 0.4 ] ∪ [ 5, + ∞ ).
Answer:
y=4
Step-by-step explanation:
<h3>The triangle is divided further into 2 right triangles. So ignore the left one.</h3><h3>We know the angle of elevation is 30° and the hypotenuse is 8.</h3><h3>Looking at SOH CAH TOA we use the sine ratio in trigonometry because we have to find the side opposite to the angle given and we know the hypotenuse. </h3><h3>It is: sin 30 = y/8</h3><h3>y= 8 sin 30</h3><h3>y=4</h3>