X+7.4=49.8
-7.4 -7.4
x=49.8-7.4
x= 42.4
Answer:
The required probability is 0.1667
Step-by-step explanation:
Consider the provided information.
According to Probability Density Function: 
Therefore,

The probability that such errors will be between –0.002 and 0.003 is:

![P(-0.002\leq x\leq 0.003)=\frac{1}{0.030}[x]^{0.003}_{-0.002}](https://tex.z-dn.net/?f=P%28-0.002%5Cleq%20x%5Cleq%200.003%29%3D%5Cfrac%7B1%7D%7B0.030%7D%5Bx%5D%5E%7B0.003%7D_%7B-0.002%7D)

Hence, the required probability is 0.1667
Answer:
c, Z
Step-by-step explanation:
x+y=4
<u>y+z=5</u>
y=4-x
4-x+z=5
<u>-</u><u>x</u><u>+</u><u>z</u><u>=</u><u>1</u>
z=1+x
Answer:
a = -21 and b = 15
Step-by-step explanation:
It is given a matrix multiplication,
<u>To find the value of a and b
</u>
It is given that,
| 6 -5 | * | -1 | = | a |
|-3 4 | | 3 | | b |
We can write,
a = (6 * -1) + (-5 * 3)
= -6 + -15
= -2
1
b = (-3 * -1) + (4 * 3)
= 3 + 12
= 215
Therefore the value of a = -21 and b = 15
Answer:
3°
Step-by-step explanation: