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pishuonlain [190]
3 years ago
9

ANOTHER ONE PLEASE HELP

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
3 0

Answer:A

Step-by-step explanation:

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Y = x + 2<br> y = 3x - 4
exis [7]

Answer:

x=3; y=5

Step-by-step explanation:

y=x+2

y=3x-4

so x+2=3x-4

2x=6

x=3

because y=x+2

                  x=3

so y=3+2

     =5

8 0
2 years ago
Simplify -19 – 1 + (–24)
IrinaK [193]
First subtract -19 - 1 = -20

Next, + (-24) is the same as just simply subtracting 24

-20 - 24

Subtract that and you get -44
3 0
2 years ago
Read 2 more answers
In a random sample of 8 ​people, the mean commute time to work was 35.5 minutes and the standard deviation was 7.4 minutes. A 90
konstantin123 [22]

Answer:

Margin of Error = 5.4088 ;

Confidence interval = (30.1 ; 40.9)

Interval estimate are almost the same

Step-by-step explanation:

Given that :

Population standard deviation, σ = 9.3

Sample size, n = 8

Xbar = 35.5

Confidence level = 90%

The confidence interval:

Xbar ± Margin of error

Margin of Error = Zcritical * σ/sqrt(n)

Zcritical at 90% = 1.645

Margin of Error = 1.645 * 9.3/sqrt(8) = 5.4088

Confidence interval :

Xbar ± Margin of error

35.5 ± 5.4088

Lower boundary = (35.5 - 5.4088) = 30.0912 = 30.1

Upper boundary = (35.5 + 5.4088) = 40.9088 = 40.9

(30.1 ; 40.9)

T distribution =. (30.5 ; 40.5)

Normal distribution = (30.1, 40.9)

4 0
3 years ago
What is the predecessor and successor of 9,852
sweet [91]

Answer:

Predecessor: 9851

Successor: 9853

Step-by-step explanation:

The predecessor of a number is 1 less than it.

The successor of a number is 1 more than it.

PLS GIVE BRAINLIEST

5 0
2 years ago
Read 2 more answers
Can you guys help? Thx
diamong [38]

Answer:

a

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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