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neonofarm [45]
2 years ago
8

jacobs job pays him $12.50 per hour which equation can be used to find jacobs salary ,y,if he works for x hours ?

Mathematics
1 answer:
g100num [7]2 years ago
4 0

Y = 12.5x Hope this helps!

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Một lô hàng chứa rất nhiều sản phẩm, trong đó tỷ lệ sản phẩm loại tốt là 70%. chọn ngẫu nhiên từ lô hàng ra 5 sản phẩm. gọi X là
den301095 [7]

trả lời : lâp bảng

X=0 thì xác suất lấy ra được sản phẩm tốt là 5*30%=1,5%

X =1 thì xác suất lấy ra được là 1* 70%*4*30%=0,84%

X=2 thì xác suất lấy ra được sản phẩm tốt là 2*70%*3*30%=1,26%

X=3 thì xác suất lấy ra được sản phẩm tốt là 3*70%*2*30%=1,26%

X=4 thì xác suất lấy ra được sản phẩm tốt là 4*70%*1*30%=0,84%

X=5 thì xác suất lấy ra được sản phẩm tốt là 5*70%=3,5%

X 0 1 2 3 4 5

P 1,5 0,84 1,26 1,26 0,84 3,5

b,

E(x)= 1,5*0+ 0,84*1+1,26*2+1,26*3+0,84*4+3,5*5=28

E(x^2)=1,5*0^2+0,84*1^2+1,26*2^2+1,26*3^2+0,84*4^2+3,5*5^2=118,16

===> V(x)= (E(x))^2-E(x^2)=28^2-118,16=665,84

8 0
3 years ago
What's 4/6 in decimal form
saw5 [17]
0.66666667 is the answer
3 0
3 years ago
Solve the system of 2x-5y+z=1 3 y+2z=5-24z=48
motikmotik
<span>A) 2x -5y +z = 1
B) 3 y + 2z = 5
C) -24 z = 48
Those 3 equations you typed were somewhat squished together.
Did I retype those correctly?
Let me know and I'll solve it.


</span>
8 0
3 years ago
mr jones has 4 shirts, 2 ties, and 3 pairs of pants. How many days in a row can he wear a different outfit?
inessss [21]
He can wear 11 different outfits.
5 0
2 years ago
Read 2 more answers
Write in standard notation. 6.9 × 10^-3
Dafna1 [17]

0.0069

Step-by-step explanation:

6.9 move the decimal 3 places to the left

8 0
3 years ago
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