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Neko [114]
3 years ago
5

Are 2b+ b and 3b equivalent expressions?

Mathematics
1 answer:
MAVERICK [17]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

2b+b=3b because2+1 = 3

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What is the inverse of the function f(x) = 4x + 8
Y_Kistochka [10]

Answer:

let f(x)= y

y = 4x+8

x= 4y + 8

4y = x - 8

y = (x - 8)/4

Hope this helps.

7 0
3 years ago
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Graph the solutions of the inequality.<br> X-3&gt; 11<br> How do I know if the hole is open or close
34kurt

Answer:

x>14

Step-by-step explanation:

X-3> 11

Add 3 to each side

X-3+3> 11+3

x > 14

The hole is open  at 14 since it is greater than  

( it would be closed if it were ≥)  The line goes to the right since it is greater than

3 0
2 years ago
The probability distribution function for the discrete random variable where x is equal to the number of red lights drivers typi
Ivahew [28]

Using probability concepts, it is found that:

a) The missing value is 0.04.

b) The mean is of 0.37.

The distribution is given by:

P(X = 0) = 0.76

P(X = 1) = 0.15

P(X = 2) = 0.05

P(X = 3) = x

Item a:

The sum of <u>all the probabilities has to be 1</u>, that is:

\sum_{i = 0}^{3} P(X = i) = 1

Thus:

0.76 + 0.15 + 0.05 + x = 1

0.96 + x = 1

x = 0.04

The missing value is 0.04.

Item b:

The mean is given by the <u>sum of each outcome multiplied by it's probability</u>, thus:

E(X) = 0(0.76) + 1(0.15) + 2(0.05) + 3(0.04) = 0.37

The mean is of 0.37.

A similar problem is given at brainly.com/question/20709747

7 0
2 years ago
Find the missing value to the nearest hundredth. cos (______) = 3/7
LekaFEV [45]

Answer:

1.12

Step-by-step explanation:

6 0
2 years ago
Help me please don’t use me for points
Norma-Jean [14]

Answer:

9x+3

Step-by-step explanation:

First join the x terms, and you will find 9x (1x+8x), then join the numbers, and you get 3 (-7+10)

Hope it helps!

5 0
3 years ago
Read 2 more answers
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