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MaRussiya [10]
3 years ago
12

Solve 15x +4< 26.5 Need help fast pls

Mathematics
2 answers:
solong [7]3 years ago
6 0

Answer:.

.

Step-by-step explanation:

d1i1m1o1n [39]3 years ago
5 0

Answer:

x<1.5

explanation: move 4 to other side subtract it with 26.5 then divide it by 15

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Simplify this expression 1x/18x
USPshnik [31]
Wouldn't it be 1/18x?????
7 0
3 years ago
Help me with this please
Rufina [12.5K]

Answer: (2,7)

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3 0
3 years ago
A drunkard executes a “random walk” in the following way: each minute he takes a step north or southm with probability 1/2 each,
valentina_108 [34]
Assume that a step to the north is in the positive direction and a step in the south is in the negative direction.

Then,

E(X_i)=50\left(\frac{1}{2}\right)-50\left(\frac{1}{2}\right)\\ \\=25-25=0

and

\sigma^2(X_i)=E(X_i^2)-E(X_i)^2 \\ \\ =50^2\left(\frac{1}{2}\right)+50^2\left(\frac{1}{2}\right)-0^2=2500\left(\frac{1}{2}\right)+2500\left(\frac{1}{2}\right)-0 \\ \\ =2500 \\ \\ \Rightarrow\sigma(X_i)=50

After 1 hour of independent steps,

E(X)=\sum_{i=1}^{60}E(X_i)=60(0)=0

and

\sigma^2(X)=\sum_{i=1}^{60}\sigma^2(X_i) \\  \\ =60(50)=300 \\  \\ \Rightarrow\sigma(X)=\sqrt{300}=17.32

Therefore, by Central Limit Theorem, the distribution of the random walk is normal with a mean of 0 cm and a standard deviation of 17.32 cm. He is expected to be somewhere around his starting point after 1 hour.
6 0
3 years ago
Read 2 more answers
I’m stuck on this can someone help?
musickatia [10]

Answer:

13

Step-by-step explanation:

f(10)=10/2+8

f(10)=5+8

f(10)=13

7 0
4 years ago
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What is the answer for 7(-5+m)
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hope this helps:)

8 0
2 years ago
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