6x -18 +2x -9 pls help

Mathematics

2 answers:

sladkih [1.3K]4 years ago

8 0

Answer 8x-27 I will show you how to do it in the picture below

ivann1987 [24]4 years ago

7 0

Answer:

8x - 27.

Step-by-step explanation:

First add the numbers with the variable(x). Then combine the -18 and -9.

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I NEED HELP ASAP! Evaluate -6 - (-9) ÷ 3

givi [52]

Answer:

-3

Step-by-step explanation:

6 0

3 years ago

Kevin installed a certain brand of automatic garage door opener that utilizes a transmitter control with four independent switc

s344n2d4d5 [400]

Kevin installed a certain brand of automatic garage door opener that utilizes a transmitter control with four independent switches, each one set on or off. The receiver (wired to the door) must be set with the same pattern as the transmitter. If six neighbors with the same type of opener set their switches independently.The probability of at least one pair of neighbors using the same settings is 0.65633

Step-by-step explanation:

Step 1

In the question it is given that

Automatic garage door opener utilizes a transmitter control with four independent switches

So .the number of Combinations possible with the Transmitters =

2*2*2*2= 16

Step 2

Probability of at least one pair of neighbors using the same settings = 1- Probability of All Neighbors using different settings.

= 1- 16*15*14*13*12*11/(16^6)

Step 3

Probability of at least one pair of neighbors using the same settings=

= 1- 0.343666

Step 4

So the probability of at least one pair of neighbors using the same settings

is 0.65633

3 0

3 years ago

Which expression is equivalent to this expression? thank you :)

CaHeK987 [17]

Answer:

C. -4x - 1

Step-by-step explanation:

$-\frac{1}{2}(8x+2)$

Distribute the term outside of the parenthesis, Multiply each term in the parenthesis by the term outside (do not forget to include the negative sign when multiplying);

$(-\frac{1}{2}(8x))+(-\frac{1}{2}(2))$