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LiRa [457]
3 years ago
13

Evaluate the expression below if x= -7 and y = 4 x^2 -3xy

Mathematics
1 answer:
stira [4]3 years ago
6 0
133

Solution

x2 -3xy
=(-7)2- 3x(-7) x 4
=49 + 21 x 4
=49 + 84
=133

Note: I put 2 instead of the “mini 2” or squared cuz I cant copy and paste it lol
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Solve the absolute value equation. <br>3=|6-x|​
kvasek [131]

Answer: well it's correct-

Step-by-step explanation: it shows that e equals to 6-x, x would be 3 so then the problem would still be correct (3=|3|) and |3| just equals, well, 3.

8 0
3 years ago
A production facility employs 10 workers on the day shift, 8 workers on the swing shift, and 6 workers on the graveyard shift. A
PilotLPTM [1.2K]

Answer:

252 ; 0.0059 ; 0.0074 ; 0.9926

Step-by-step explanation:

Day shift = 10

Swing shift = 8

Graveyard shift = 6

Total number of workers = 24

A.) Number of selections resulting in 5 workers coming from day shift :

10C5 = 10! ÷ (10-5)!5!

= (10*9*8*7*6) / (5*4*3*2*1)

= 252

B.) All 5 workers coming from day shift :

Required outcome = 10C5

Total possible outcomes = 24C5

10C5 ÷ 24C5

252 ÷ 42504

= 0.0059288

= 0.0059

C.) 5 selected workers are from the same shift :

[day shift + swing shift + graveyard shift] / total possible outcomes

[(10C5) + (8C5) + (6C5)] ÷ 24C5

(252 + 56 + 6) / 42504

= 0.0074

D.) What is the probability that at least two different shifts will be represented among the selected workers?

1 - [[(10C5) + (8C5) + (6C5)] ÷ 24C5]

1 - 0.0073875

= 0.9926124

= 0.9926

6 0
3 years ago
What is three eights as a percent
Igoryamba

Answer:

3/8 as a percent equals 37.5%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If you flip a coin ten times and get tails three times; what is the experimental probability of getting heads?
kirill115 [55]

Answer:

50 goes to 25 to 12.5 then 6.25%

Step-by-step explanation:

i hope i helped

6 0
4 years ago
Multiply.<br> multiply<br> 1 1/2·8<br><br> 4 1/2<br><br> 8 1/2<br><br> 1/2<br><br> 24
slava [35]

Answer:

12

Step-by-step explanation:

1 1/2·8 =

3/2*8/1

3/1*4/1=12

7 0
3 years ago
Read 2 more answers
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