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zalisa [80]
3 years ago
13

How many integers greater than 4 million and less than 9 million are perfect squares?

Mathematics
1 answer:
Arisa [49]3 years ago
5 0
Trial and error
find the smallest and largest squares

oh, nevermind an easier way

square root them



4 million=4,000,000
square root=2000
9million=9,000,000
square root=3000

how many numbers betwee 2000 and 3000?
3000-2000=1000
minus 1 because of math
999 numbers fit the criteria
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Here are two sums.
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Answer:

6/7 - 1/3

Step-by-step explanation:

You know that 1/2=0,5

Then, you have to solve the two sums:

2/15+1/3=((2*3)+(15*1))/(15*3)=(6+15)/45=21/45=0,4666=0,47

6/7-1/3=((6*3)-(7*1))/(7*3)=(18-7)/21=11/21=0,5238=0,52

You now know what number of 0,47 and 0,52 is closer to 0,5; which is 0,52

0,47 is to 0,03 from 0,5

0,52 is to 0,02 from 0,5

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3 years ago
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Help PLEASE. I got number 3 but I can't figure out number 4.
Sergeeva-Olga [200]

Answer:

Verify the identity using trig rules.

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Step-by-step explanation:

i think this is it, hope it helps

6 0
3 years ago
Which expression represents the quotient of the model shown? -x2 O x + 3 x - 3 lolo o O -X-3 -x + 3​
Bess [88]

Answer:

<h3>-x+3</h3>

Step-by-step explanation:

Given the expression

-x^2 + x + 3 x - 3

Factorize

(-x^2 + x) + (3 x - 3)

-x(x-1)+3(x-1)

= (x-1)(-x+3)

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3 0
3 years ago
Which linear inequality is represented by the graph
Arlecino [84]

Answer:\Large\boxed{First~choice.~y\leq \frac{1}{2}x+2 }

Step-by-step explanation:

<h2>Determine the equation form of the inequality</h2>

<u>Given function form</u>

Point-Slope form : y = mx + b

  • m = slope
  • b = y-intercept

<u>Given the information from the graph</u>

Since the graph crosses (0, 2), b = 2

<u>Find the slope</u>

<em>Choose any two points from the graph</em>

(x₁, y₁) = (0, 2)

(x₂, y₂) = (2, 3)

Slope = (y₂ - y₁) / (x₂ - x₁)

Slope = (3 - 2) / (2 - 0)

Slope = 1 / 2

m = 1 / 2

Therefore, the equation form of the inequality is <u>y = (1/2)x + 2</u>

<h2>Determine whether it is ≤ or ≥</h2>

Since it is a <u>solid line</u>, the values on the line are also included. Thus, it must be either greater than or equal to, or less than or equal to.

The shaded region is below the solid line, therefore, it is<u> ≤</u>

Therefore, the inequality is \Large\boxed{y\leq \frac{1}{2}x+2 }

To double-check the sign, we can substitute (0, 0) into the inequality to see whether it is true.

y ≤ (1/2) x + 2

0 ≤ (1/2) 0 + 2

0 ≤ 2              TRUE

Hope this helps!! :)

Please let me know if you have any questions

5 0
1 year ago
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