Since a polynomial is where we have like terms such as (1 x 10²) and (4 x 10²), we can add these up using the distributive property to get (5 x 10²) but still keep the 10². For example, it's similar to if we had 2x²+3x²=5x². The x² is still there, but we add up the 2 and 3. Similarly, we can add these up for 10^1 and 10^0
Answer:
x=12.124
y=14
Step-by-step explanation:
tan(30)= 7/x
x= 7/tan(30)
sin(30)= 7/y
y= 7/sin(30)
Answer:
14
Step-by-step explanation:
![x + 2 = 16 \\ x = 16 - 2 \\ x = 14](https://tex.z-dn.net/?f=x%20%2B%202%20%3D%2016%20%5C%5C%20x%20%3D%2016%20-%202%20%5C%5C%20x%20%3D%2014)
Like this ???
Answer:
Option (D)
Step-by-step explanation:
Measure of arc AB = 152°
"Since measure of inscribed angle is half the measure of intercepted arc"
Measure of arc AX = 2(m∠ABX)
= 2 × 64°
= 128°
"When a tangent and secant intersect outside a circle, measure of angle between them will be half of the difference of the measures of intercepted arcs."
m∠ACB = ![\frac{1}{2}(m\widehat {AB}-m\widehat {XA})](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%28m%5Cwidehat%20%7BAB%7D-m%5Cwidehat%20%7BXA%7D%29)
= ![\frac{1}{2}(152-128)](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%28152-128%29)
= 12°
Therefore, measure of angle ACB = 12° is the answer.
Option (D) is the correct option.
Answer:
The value of XY is 20.
Step-by-step explanation:
Given:
XZ = 16
YZ = 12
Since the triangle is not shown:
Assuming it is a right angled triangle with right angle at ∠Z.
We have drawn the triangle for your reference.
Now by Using Pythagoras theorem we get;
![XZ^2+YZ^2=XY^2](https://tex.z-dn.net/?f=XZ%5E2%2BYZ%5E2%3DXY%5E2)
Substituting the values we get;
![XY^2 = 16^2+12^2 = 256+144 =400](https://tex.z-dn.net/?f=XY%5E2%20%3D%2016%5E2%2B12%5E2%20%3D%20256%2B144%20%3D400)
Now taking square root on both side we get;
![\sqrt{XY}=\sqrt{400}\\\\XY =20](https://tex.z-dn.net/?f=%5Csqrt%7BXY%7D%3D%5Csqrt%7B400%7D%5C%5C%5C%5CXY%20%3D20)
Hence The value of XY is 20.