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faltersainse [42]
3 years ago
13

1.

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0

Answer:

a 72

b 7

Part C)

___7_|_35+63_

_____|__9+5__

35+63=7(9+5)=714=98 or 35+63=98

Step-by-step explanation:

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What is the least common multiple of 47, 26, and 7?​
kirza4 [7]

Answer:

The least common mutible for 47,26, and 7 is "8554".

6 0
3 years ago
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Suppose that Upper X has a discrete uniform distribution f left-parenthesis x right-parenthesis equals StartLayout left-brace1st
emmasim [6.3K]

Answer:

the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

Step-by-step explanation:

Given the data in the question;

x        f(x)         xp(x)               x²p(x)

1         1/3        0.33333        0.33333

2        1/3        0.66667        1.33333

3        1/3        1.00000        3.0000

∑                    2.0000          4.6667

∑(xp(x)) = 2

∑(x²p(x)) = 4.6667

Variance σ² = ∑(x²) - ∑(x)² = 4.6667 - (2)² = 4.6667 - 4 = 0.6667

standard deviation σ = √variance = √0.6667 = 0.8165

Now since, n = 33 which is greater than 30, we can use normal approximation

for normal distribution z score ( x-μ)/σ

mean μ = 2

standard deviation = 0.817

sample size n = 33

standard of error σₓ = σ/√n = 0.817/√33 = 0.1422

so probability will be;

p( 2.1  < X < 2.4 ) = p(( 2.1-2)/0.1422) <  x"-μ/σₓ  <  p(( 2.4-2)/0.1422)

= 0.70 < Z < 2.81    

=  1 - ( 0.703 < Z < 2.812 )

FROM Z-SC0RE TABLE

=  1 - ( 0.25804 + 0.49752 )

= 1 - 0.75556

p( 2.1  < X < 2.4 ) = 0.2444

Therefore,  the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

7 0
3 years ago
9
____ [38]

Answer:

y = 5x+3

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a general line is represented by the equation:

y = mx + n

a line with m=5, that goes through (-1,-2), should satisfy the equation:

-2 = 5×(-1) + n

this is because any point on the line, satisfies it's equation.

from this we get n = 3, hence our answer

4 0
2 years ago
A washer and dryer cost $989 combined. The washer costs $89 more then the dryer. What is the cost of the dryer?
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Answer The washer costs $539.  The dryer cost $450

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Ed scored 8 goals for his soccer team this season. Javi scored 5 goals.
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You add 8 and 5 so the equation would be 8+5=13
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