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3 years ago

Which is a perfect square between 49 and 121

Mathematics

1 answer:

seropon [69]3 years ago

4 0

Answer:

49 and 121 are perfect squares.

Step-by-step explanation:

By definition, a perfect square is a number that is generated by multiplying two equal integers by each other.

7 ×7 or 7² = 49

11 × 11 or 11² = 121

Another way of checking whether a given number is a perfect square:

Finding the number’s square root. If the square root of a number is a whole number, then the number is a perfect square.

$\sqrt{49} = 7$

$\sqrt{121} = 11$

Therefore, 49 and 121 are both perfect squares.

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How many total roots are must there be in this function explain how you know H(x)=x3-7x2-x+7

Leona [35]

Answer:

total 3 roots,

How do I know?:

put this function in graphing calculator

And if you don't have a graphing calculator, then calculate it out bu yourself:

(x + 1)(x − 1)(x − 7) = 0

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4 years ago

A company that makes hair-care products had 9,000 people try a new shampoo. Of the 9,000 people, 36 had a mild allergic reacti

Nezavi [6.7K]

Answer: 0.4%

Step-by-step explanation:

Total number of people 9000, divide the number of allergic reactions 36 by 9000.

36/9000=0.004

Now multiply 0.004 x 100 to reveal percent allergic reaction

0.004 x 100 = 0.4%

0.4% had allergic reactions

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3 years ago

50 POINTS, PLEASE ANSWER

ludmilkaskok [199]

Step-by-step explanation:

Part 1:

Rotation counterclockwise 90 &degree; of a point is

Here is a table of the transformation of all four points:

P(-7,0)-> P'(-0,-7) =P'(0,-7)

A(-4,2)-> A'(-2,-4)

R(-3,0)-> R'(0,-3)

K(-6,2)-> K'(-2,-6)

The initial and rotated images are shown attached.

Part 2: it needs to be done with the technology tool that you have. We can check your work if you post what you did.

7 0

3 years ago

Read 2 more answers

I really need help with this question. I need this to be explained because I don't even understand what a 5-number summary is. T

OLEGan [10]

I did it on paper just now. Sorry for the sloppy handwriting, but you should be able to answer the two questions with the info I got. If you don't know what five number summary is, just google it.

Basically, arrange the list of numbers in order, and then find the minimum, 1st quartile, median, 3rd quartile, and maximum.

8 0

3 years ago

Blake gives piano lessons in the evenings.

Aliun [14]

Answer:

The correct answer is B. {0, 20, 40, 60, 80, 100, 120}

Step-by-step explanation:

1. Let's check all the information given to answer this question correctly:

Rate of each piano lesson Blake gives = US$ 20

Blake can give between 0 and 6 lessons every evening

Earnings = Number of lessons * Rate of each lesson

2. What is the range of this relation?

Let's recall that the domain of a relation is the set of all values for which the relation is defined, and the range of the relation is the set of all values that the relation takes.

It means that the domain of the relation in this case is the number of lessons that Blake can give every evening:

{0, 1, 2, 3, 4, 5, 6}

And the range of this relation is the amount Blake earns in an evening depending on the number of lessons he gives:

{0, 20, 40, 60, 80, 100, 120}

The correct answer is B. {0, 20, 40, 60, 80, 100, 120}

3 0

4 years ago

Read 2 more answers