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3 years ago

Why is 21 sqrt root an irrational number?

Mathematics

1 answer:

STatiana [176]3 years ago

6 0

Answer:

Because it cannot be written as a fraction

Step-by-step explanation:

The square root of any non-perfect square will always be irrational and cannot be written as a fraction. The sqrt(21) has no repeating digits because its digits go on forever.

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What is the equation of this graphed line?

Veseljchak [2.6K]

Answer:

Slope Intercept form of the equation is $y = \frac{1}{3} x - 9$

Step-by-step explanation:

Here, the two point line are given as is A(-6,-3) and B(6,-7)

The slope of the line AB = $m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{-7-(-3)}{6-(-6)} = \frac{-7 + 3}{6 + 6} = \frac{4}{12} \\\implies m = \frac{1}{3}$

⇒ the slope of AB is m = (4/3)

By SLOPE INTERCEPT FORMULA:

The equation of a line with slope m and a point (x0, y0) is given as

(y-y0)= m (x-x0)

⇒ The equation of line with point (6,-7) is:

$y + 7 = \frac{1}{3} (x-6) \implies 3y + 21 - x + 6 - 0\\or, -x + 3y + 27 = 0$

Now, the given equation is -x + 3y = -27

Convert it in the SLOPE INTERCEPT FORM y = mx + c

We get, 3y = x - 27

or, $y = \frac{1}{3} x - \frac{27}{3} \\\implies y = \frac{1}{3} x - 9$

Hence, the Slope Intercept form of the equation is $y = \frac{1}{3} x - 9$

3 0

3 years ago

Model and solve the problem

kogti [31]

Answer:

9/4

Step-by-step explanation:

multiply 4 and 2 and add the 1 on top which makes it 9 and the denominator stays the same which is 9/4

5 0

3 years ago

Define the polynomial by the number of terms.

Lera25 [3.4K]

If the number of terms is one then it is called a mono-nomial
if number of terms is two then it is called binomial.
if the number of terms is three or more than three then it is called poly-nomial.

3 0

3 years ago

Fill in the missing numbers in this table NEED ASAP PLEASE ANYONE

Rashid [163]

Answer:

Step-by-step explanation:

add all divide by to total no.of value

64/4=16

mean=16

4 0

2 years ago

Read 2 more answers