All categories

3 years ago

What is the square root of 38.7

Mathematics

1 answer:

Inessa05 [86]3 years ago

8 0

Answer:

6.220932406

Why on Earth would you need that??

You might be interested in

PLEASE HELP!!!!!!!!!!!!!!!!!

solong [7]

Answer: True

In math terms, an "image" is the result after a transformation has been applied. One or more transformations can happen here. The original figure is called the "preimage" or "before image" so to speak.

So we go from "preimage" to "image"

preimage ---> image

A maps to A'

B maps to B'

C maps to C'

D maps to D'

6 0

3 years ago

Read 2 more answers

Yis inversely proportional to the square of x.

PtichkaEL [24]

Answer:

(a) $y = \frac{4}{x^2}$

(b) $x = \frac{2}{5}$

Step-by-step explanation:

Given

Variation: Inverse proportional.

This is represented as:

$y\ \alpha\ \frac{1}{x^2}$

See attachment for table

Solving (a):

First convert variation to equation

$y = k\frac{1}{x^2}$

From the table:

$(x,y) = (1,4)$

So, we have:

$4 = k * \frac{1}{1^2}$

$4 = k * \frac{1}{1}$

$4 = k * 1$

$4 = k$

$k = 4$

Substitute 4 for k in $y = k\frac{1}{x^2}$

$y = 4 * \frac{1}{x^2}$

$y = \frac{4}{x^2}$

Solving (b): x when y = 25.

Substitute 25 for y in $y = \frac{4}{x^2}$

$25 = \frac{4}{x^2}$

Cross Multiply

$25 * x^2 = 4$

Divide through by 25

$x^2 = \frac{4}{25}$

Take positive square roots of both sides

$x = \sqrt{\frac{4}{25}$

$x = \frac{2}{5}$

4 0

3 years ago

Can the product of reciprocals ever equal negative 1? Why

Aleks04 [339]

No because when ever you multiply the same reciprocals you always end up with the number 1

4 0

4 years ago

How much will he be paid in the first 2 years?

elena-14-01-66 [18.8K]

Answer:

$4160

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Three tenths of a number is 2.1. Determine the number .

REY [17]

Ok so... Let x be 2.1

x = 2.1 / (3/10)

multiply both the numerator and denominator by 10 which gives

x = 21/3 SO the answer is......

x = 7 Yay!!! Have a god day

6 0

3 years ago