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4 years ago

1/2(30x - 4) (Distributive property)

Mathematics

1 answer:

mars1129 [50]4 years ago

8 0

Steps to solve:

1/2(30x - 4)

~Distribute to both sides

15x - 2

Best of Luck!

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If you write out the numbers from 1 through 60 (including 1 and 60), how many numbers have a "5" in them?

kvasek [131]

Heya!!!
Answer is...

15 numbers have 5 in them....
Numbers are....
5
15
25
35
45
50
51
52
53
54
55
56
57
58
59

HOPE IT HELPS YOU '_'

7 0

3 years ago

Read 2 more answers

I need help!!!!! It’s urgent

Yuliya22 [10]

Answer:

do a line conforming to the table days=x sales =y

Step-by-step explanation:

3 0

3 years ago

I need help on my math homework

xxTIMURxx [149]

Answer: the first one is True and the second one is false

Step-by-step explanation:

3 + 5x = 23

so replace x with 4 you get 3 + 5 * 4 = 3 + 20 = 23

this is equal to 23 so it is true

2x - 6 = 9

do the same you get

2 * 8 - 6 = 9

16 - 6 = 10

the answer is 10 not nine therefore it is false

7 0

3 years ago

An insurance company sells automobile liability and collision insurance. Let X denote the percentage of liability policies that

qaws [65]

Answer:

-764.28

Step-by-step explanation:

Given the joint cumulative distribution of X and Y as

$F(x,y) = \frac{xy(x+y)}{2000000}\ \ \ \, \ 0\leq x100, 0\leq y\leq 100$

#First find $F_x$ and probability distribution function , $f_x(x)$ :

$F_x(x)=F(x,100)\\\\\\=\frac{100x(x+100)}{2000000}\\\\\\\\=\frac{100x^2+10000x}{2000000}\\\\\\=>f_x(x)=\frac{x}{10000}+\frac{1}{200}$

#Have determined the probability distribution unction , $f_x(x)$ , we calculate the Expectation of the random variable X:

$E(X)=\int\limits^{100}_0 \frac{x^2}{10000}+\frac{x}{200} dx \\\\\\\\=|\frac{x^3}{30000}+\frac{x^2}{400}|\limits^{100}_0\\\\=58.33\\\\$

#We then calculate $E(X^2)$ :

$E(X^2)=\int\limits^{100}_0 \frac{x^3}{10000}+\frac{x^2}{200}\ dx\\\\=\frac{x^4}{40000}+\frac{x^3}{600}|\limits^{100}_0=4166.67\\\\Var(X)=E(X^2)-(E(X))^2=4166.67-58.33^2\\\\Var(X)=764.28$

Hence, the Var(X) is 764.28

4 0

3 years ago

Find the common ratio of the sequence -164, -82, -41, -20.5

Aleks [24]

Answer:

r = $\frac{1}{2}$

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = $\frac{a_{2} }{a_{1} }$ = $\frac{a_{3} }{a_{2} }$ = $\frac{a_{4} }{a_{3} }$ = ......

r = $\frac{-82}{-164}$ = $\frac{-41}{-82}$ = $\frac{1}{2}$

5 0

3 years ago