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3 years ago

Find the least common multiple of 7,9 and 21

1 answer:

3 0

Free LCM Calculator determines the least common multiple (LCM) between 9 and 21 the smallest integer that is 63 that is divisible by both numbers. Least Common Multiple (LCM) of 9 and 21 is 63.
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Prime Factorization of 21.
3 21
7 7
1

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6.Zena needs a salesperson. Sales person anyway is offering his services for an initial $50 in addition to $5 per hour. Sales pe

Ainat [17]

Answer:

5 hours (when salespersons A and B will both charge $75)

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3 years ago

ASAP HELP: If a sample proportion is 0.55, which range of possible values best describes an estimate for the population paramete

iris [78.8K]

Answer:

B.(0.4,0.7)

Step-by-step explanation:

We are given that

Sample proportion

$\hat{p}=0.55$

We have to find the range of possible values which describes best an estimate for the population parameter.

Estimate for the population parameter

$\hat{p}\pm Z(SE)$

A.(0.55,0.6)

Difference between 0.55 and 0.55=0

Difference between 0.55 and 0.6=0.05

Difference between 0.55 and 0.55 is not equal to difference between 0.55 and 0.6.

Hence, option A is wrong.

B.(0.4,0.7)

Difference between 0.55 and 0.4=0.15

Difference between 0.55 and 0.7=0.15

Difference between 0.55 and 0.4 is equal to difference between 0.55 and 0.7.

Hence, option B is correct.

C. (0.4,0.69)

Difference between 0.55 and 0.4=0.15

Difference between 0.55 and 0.69=0.14

Difference between 0.55 and 0.4 is not equal to difference between 0.55 and 0.69.

Hence, option C is not correct.

D.(0.5,0.59)

Difference between 0.55 and 0.5=0.05

Difference between 0.55 and 0.59=0.04

Difference between 0.55 and 0.5 is not equal to difference between 0.55 and 0.59.

Hence, option D is not correct.

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3 years ago

I NEED HELP PLEASE, THANKS! :)

lbvjy [14]

Answer:

Option D

Step-by-step explanation:

x is given to be 4 in this case, so all we would have to is plug it into the following function -

$f ( x ) = \left \{ {{x - 2, x < 4 } \atop {x + 2, x \geq 4 }} \right$

Through substitution, you would receive the following function -

$f ( x ) = \left \{ {{2, 4 < 4 } \atop 6, 4 \geq 4 }} \right$

Now the graph proves that this function is closer to 4, and thus proves that the y - coordinate is about 2 at the same time. However, the graph is cut off, so the limit doesn't exists.

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3 years ago

For a summer block party, Elsa is bringing cups and a large ice cream

Klio2033 [76]

Answer:

Look bucko this story will help u, make sure to read it all!

Step-by-step explanation:

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lol bad

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3 years ago

The set of ordered pairs below represents a linear function. Find the rate of change. {(1,4), (2,6), (3,8), (4,10)} The

Finger [1]

Answer:

(1,2)

Step-by-step explanation:

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4 years ago