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Mamont248 [21]
3 years ago
10

If a-1/a=4 then find a^2-1/a^2

Mathematics
1 answer:
Pavel [41]3 years ago
5 0

Answer:

This is the ever best answer. All the best

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What is margin of error??
Tems11 [23]

Answer:

The margin of error for a sample size of 250 is 6

Step-by-step explanation:

The margin of error is given as

1/square root of the sample size

Thus, margin of error for a sapless size of 250 is

1/√250

= 1/15. 811

= 6

8 0
3 years ago
Help me with this please !
andriy [413]
The y intercept is 3 because that is where the point aligns to the axis
3 0
3 years ago
Read 2 more answers
Compare the value of √(100/25) to the value of √100/√25.
olga2289 [7]

Answer:

4 16 2.000

5 25 2.236

6 36 2.449

7 49 2.646

Step-by-step explanation:

7 0
3 years ago
Which is a proportional relationship<br> y=x+1<br> y=3x+3<br> y=4x<br> y=8+x
yulyashka [42]

Answer:

4=4x

Step-by-step explanation:

the formula y=mx+b

corresponds to y=slope+y intercept

all proportional relationships start on the origin so the y-intercept is always 0

the fact that the equation y = 4x doesn't have an intercept shows its proportional this can go with any similar equation like y = 4.5x

8 0
3 years ago
Pleas help y’all please
zaharov [31]

Answer:

option 3

Step-by-step explanation:

BODMAS : the expression contains addition and division. So we will do division first and then addition.

\frac{1}{3} + \frac{5}{4}  \div \frac{3}{2}\\\\\frac{1}{3} + (\frac{5}{4}  \div \frac{3}{2})\\\\\frac{1}{3} +( \frac{5}{4}  \times \frac{2}{3} )\\\\\frac{1}{3} + \frac{5}{6}\\\\\frac{2 + 5}{6} \\\\\frac{7}{6} = 1 \frac{1}{6}

4 0
3 years ago
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