Answer:
334/667
Step-by-step explanation
chances of getting heads is 1/2
chances of getting an even number is 333/666
simply add them up
Answer:
10°
Step-by-step explanation:
the sum of interior angles of triangle is 180°
so. 8x+x+90°=180°
9x=90°
x=10°
No this is the answer:
Step 1.
Andy=5
Belinda=3
Carl=1
Step 2.
5+3+1=9
step 3.
126 divide 9 is 14
Step 4.
Multiply all the numbers by 14
Which is 70:42:14 which equals 126
So belinda gets 42
Answer=42
Answer:
x = -36, y = 6, z = -6
Step-by-step explanation:
The requirement x/z = -z means x = -z².
The requirement x/y = z means x = yz.
These two requirements together mean yz = -z², or y = -z.
The requirements that z/2 and z/3 are integers mean that z is a multiple of 2·3 = 6. The smallest magnitude non-zero multiple is z=-6 (since we also require z < -z).
Using z=-6, we have x = -z² = -36; y = -(-6) = 6.
For some positive integer n, ...
... x = -36n², y = 6n, z = -6n.
Given:
The expression is
![x+4x-3+3x^2-2x](https://tex.z-dn.net/?f=x%2B4x-3%2B3x%5E2-2x)
To find:
The value of given expression when x=5.
Solution:
We have,
![x+4x-3+3x^2-2x](https://tex.z-dn.net/?f=x%2B4x-3%2B3x%5E2-2x)
Substituting x=5 in the above expression, we get
![=(5)+4(5)-3+3(5)^2-2(5)](https://tex.z-dn.net/?f=%3D%285%29%2B4%285%29-3%2B3%285%29%5E2-2%285%29)
![=5+20-3+3(25)-10](https://tex.z-dn.net/?f=%3D5%2B20-3%2B3%2825%29-10)
![=5+20-3+75-10](https://tex.z-dn.net/?f=%3D5%2B20-3%2B75-10)
On further simplification, we get
![=(5+20+75)+(-3-10)](https://tex.z-dn.net/?f=%3D%285%2B20%2B75%29%2B%28-3-10%29)
![=100+(-13)](https://tex.z-dn.net/?f=%3D100%2B%28-13%29)
![=100-13](https://tex.z-dn.net/?f=%3D100-13)
![=87](https://tex.z-dn.net/?f=%3D87)
Therefore, values of the given expression at x=5 is 87.