Which is greater 3/5 or 1/4

Simplify. 3725−−√−2825−−√+6325−−√ 457√ 7√ 257√ 857√

Andru [333]

Answer:

Option A.

Step-by-step explanation:

Consider the given problem is

$3\sqrt{\frac{7}{25}}-\sqrt{\frac{28}{25}}+\sqrt{\frac{63}{25}}$

Using the properties of radical expressions we get

$3\cdot \frac{\sqrt{7}}{\sqrt{25}}-\frac{\sqrt{28}}{\sqrt{25}}+\frac{\sqrt{63}}{\sqrt{25}}$ $[\because \sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}]$

$3\cdot \frac{\sqrt{7}}{\sqrt{25}}-\frac{\sqrt{4}\sqrt{7}}{\sqrt{25}}+\frac{\sqrt{9}\sqrt{7}}{\sqrt{25}}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$3\cdot \frac{\sqrt{7}}{5}-\frac{2\sqrt{7}}{5}+\frac{3\sqrt{7}}{5}$

Taking out common factors.

$\frac{\sqrt{7}}{5}(3-2+3)$

$\frac{\sqrt{7}}{5}(4)$

$\frac{4\sqrt{7}}{5}$

The simplified form of given expression is $\frac{4}{5}\sqrt{7}$

Therefore, the correct option is A.

4 0

3 years ago

Express 5940 as the product of prime factors.

valentina_108 [34]

Step-by-step explanation:

5940 = 2×2×3×3×3×5×11

HOPE IT HELPS YA

5 0

3 years ago

Read 2 more answers

A tool manufacturer has fixed costs of $68.00 a day and variable costs of $1.00 per screwdriver

marin [14]

Answer:

46

Step-by-step explanation:

To breakeven, the total cost of the company which is the sum of the fixed and variable cost will be equal to the total sales of the company such that the profit/loss is zero.

Let x be the number of screwdriver that must be produced daily to break even

Then

68 + 1 * x = 2.5 * x

68 + x = 2.5x

collect like terms

68 = 2.5x - x

1.5x = 68

Divide both sides by 1.5

x = 68/1.5

= 45.33

This would be approximated to 46 screws

4 0

3 years ago

Since a sample data shows that a linear correlation coefficient between two variables is about 0.08, then it rules out a possibl

myrzilka [38]

Answer:

False

Explanation:

A linear correlation coefficient is used to measure the the level of relationship between two seemingly dependent and independent variables. A relationship exists between two variables in linear correlation if one affects the other, either negatively or positively never zero. If linear correlation has a negative value then one variable increases while the other decreases. If linear correlation coefficient is positive then both variables increase together. If zero then there is no relationship as one variable's increase or decrease has nothing to do with the other. In the case above, correlation is positive at 0.08 hence we can say that there is a relationship between the two variables.

4 0

3 years ago

Need help homework due tomorrow! is it correct and need help on 9

Lera25 [3.4K]

Answer:

B. -1

Step-by-step explanation:

I just looked over it quickly, everything looks correct.

To see if a number is in the solution set, plug it in and see if its true:

0 - 9 > -10

-9 > -10

true

-1 - 9 > -10

-10 > -10

false

1 - 9 > -10

-8 > -10

true

2 - 9 > -10

-7 > -10

true

The only solution that doesn't work is B. -1

3 0

3 years ago