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3 years ago

I WILL GIVE BRAINLIEST! :3PLEASE HELP!

Mathematics

1 answer:

algol [13]3 years ago

3 0

Answer:

9×(t+5)= 9t+45

Step-by-step explanation:

The distributive property states that

x(y+z)=xy+xz

here 9×(t+5) = 9(t+5)=9t+9(5)= 9t+45.

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A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.53, 0.40

SpyIntel [72]

The mean of the probability distribution is given by the expected value given by

$E(x)=\sum xp(x) \\ \\ =0(0.53)+1(0.40)+2(0.05)+3(0.02) \\ \\ =0.40+0.10+0.06=0.56$

The variance of the probability distribution is given by

$Var(x)=(x-\bar{x})^2p(x) \\ \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\ \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\ \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\ \\ =0.166208+0.07744+0.10368+0.119072=0.4664$

The standard deviation is given by

$\sigma(x)=\sqrt{Var(x)} \\ \\ =\sqrt{0.4664}=0.683$

5 0

2 years ago

Which equation describes this line?

kvasek [131]

Answer:

I think it's c but I'm not 100 percent sure

7 0

3 years ago

Read 2 more answers

1. SUNDAES Carmine bought 5 ice cream sundaes for his friends. If each sundae costs $4.95, how much did he

Soloha48 [4]

Answer:

24.75

Step-by-step explanation:

you want to multiply 4.95×5 and you will get the answer $24.75.

7 0

3 years ago

Please help me as soon as you can please

Bad White [126]

Answer:

f(x) = 5 * ( 8/5) ^x

Step-by-step explanation:

f(x) = a b^x

Let x = 0

5 = a * b^0

5 = a*1

a = 5

Let x = 1

8 = 5 * b^1

Divide each side by 5

8/5 = b

f(x) = 5 * ( 8/5) ^x

8 0

3 years ago

Ways to decompose 7/8

Finger [1]

Answer

7/8

1/8 + 6/8

1/8 + 3/4

1/8 + 1/4 + 2/4

1/8 + 1/4 + 1/2

4 0

3 years ago