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patriot [66]
2 years ago
9

My shoe has a mass of 1,200 grams. How many grams would 2 of my shoes be? _____________g

Mathematics
2 answers:
marusya05 [52]2 years ago
5 0

Answer:

your mom gave me head

Step-by-step explanation:

it all happened on a Friday morning...

vivado [14]2 years ago
3 0

Answer:

2,400

Step-by-step explanation:

1,200 x 2 = 2,400

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Jessica has a four-sided die, a six-sided die, and a 12-sided die. She rolls the three dice once. Let Z be the number of fours s
yawa3891 [41]

Answer:

The value of E [Z]  is 0.50.

Step-by-step explanation:

The expected value is computed using the formula:

E(X)=\sum x\cdot P(X= x)

Denote the three dices as follows:

X₁ = a four-sided die

X₂ = a six-sided die

X₃ = a 12-sided die

Define the indicator variables as follows:

I_{1}=\left \{ {{1;\ X_{1}=4} \atop {0;\ X_{1}\neq 4}} \right. \\\\I_{2}=\left \{ {{1;\ X_{2}=4} \atop {0;\ X_{2}\neq 4}} \right. \\\\I_{3}=\left \{ {{1;\ X_{3}=4} \atop {0;\ X_{3}\neq 4}} \right.

The probability of rolling a 4 in the three dices are as follows:

P(X_{1}=4)=\frac{1}{4}\\\\P(X_{2}=4)=\frac{1}{6}\\\\P(X_{3}=4)=\frac{1}{12}

Compute the value of E [Z] as follows:

E(Z)=E(I_{1})+E(I_{2})+E(I_{3})

         =(1\times\frac{1}{4})+(1\times\frac{1}{6})+(1\times\frac{1}{12})\\\\=\frac{3+2+1}{12}\\\\=\frac{6}{12}\\\\=\frac{1}{2}\\\\=0.50

Thus, the value of E [Z]  is 0.50.

8 0
3 years ago
Two cars leave towns 360 kilometers apart at the same time and travel toward each other. One car's rate is 12 kilometers per hou
mixer [17]
Let x = speed of the first car

the second car is 12 km slower so the seconds car speed is x-12

 they each drove 2 hours so 1st car = 2x
2nd car = 2(x-12)
 
they drove 360 km
 so you have 2x + 2(x-12) = 360
 solve for x

2x+2(x-12) = 360

2x + 2x-24 = 360

4x-24 = 360

4x = 384
x = 384/4
x = 96

1st car drove at 96 km per hour

slower car drove at 96-12 = 84 km per hour



5 0
3 years ago
The area of the following parallelogram is:<br> 5 m<br> 4 m<br> 3 m
Sonbull [250]

Answer:

60m

Step-by-step explanation:

Multiply length times width times height so basically 5mx4mx3m=60m

Hope this helped :)

6 0
3 years ago
Read 2 more answers
What is the product of -3.4 and 2.5
qaws [65]
Your answer is -8.5

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8 0
3 years ago
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Why do you sometimes have one multiplication sentence for an array
zvonat [6]

Answer:

i dont understand

Step-by-step explanation:

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