1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VLD [36.1K]
3 years ago
7

I need help please.

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

\frac{7\sqrt{5} }{8}

Step-by-step explanation:

Using the rules of radicals

\sqrt{\frac{a}{b} } = \frac{\sqrt{a} }{\sqrt{b} }

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{\frac{245}{64} } = \frac{\sqrt{245} }{\sqrt{64} }

Simplifying the radicals

\sqrt{245}

= \sqrt{5(7)(7)}

= \sqrt{49(5)}

= \sqrt{49} × \sqrt{5} = 7\sqrt{5}

and

\sqrt{64} = 8

The simplified radical is

\frac{7\sqrt{5} }{8}

You might be interested in
Automobile license plates for a state consist of four letters followed by a dash and two single digits. How many different licen
Sauron [17]

The number of different license plate combinations that are possible if exactly one letter is repeated exactly once, but digits cannot be repeated is 8,424,000.

<h3>What is combination?</h3>

A combination is just a mathematical technique for determining the number of potential arrangements in a set of objects where the order of a selection is irrelevant.

You can choose the components in any order in combinations. Permutations and combinations are often mistaken.

Now according to the question,

Possible letter combinations

Choose any letter and make it a repeat letter = 26 ways

But, there are ⁴C₂ = 6 spots available for the identical letters.

And there are (25)×(24) other methods for selecting the other two letters.

The total amount of "words" equals ⁴C₂ × 26 × 25 × 24 = 93600.

Furthermore, because the numerals cannot be repeated = 10 × 9 = 90

So, the total number of choices = 93600 × 90 = 8,424,000

Therefore, the total combinations in which the letters can be chosen for the license plates is  8,424,000.

To know more about the combination, here

brainly.com/question/11732255

#SPJ4

4 0
1 year ago
Andre and Diego were each trying to solve 2x+6=3x-8 Describe the first step they each make to the equation
avanturin [10]
The first step was the combine the like terms; in this example he is subtracting the 3x on both sides of the =.

If you were to solve the equation it would look like this:

2x+6=3x-8
-3x -3x

-x+6=-8
-6 -6

-x=-14
/-1 /-1

x=14
6 0
3 years ago
PLZ HELP Simplify the rational expression. State any excluded values. 2x/-5x+x^2
Bas_tet [7]
(2x/-5x)+x^2
(x(2)/(x(-5))+x^2

(-2/5)+x^2, the x values cancel in numerator and denominator and simplify to -2/5
6 0
3 years ago
Read 2 more answers
If the area of the rectangle is five times the area of the triangle work out the width of the rectangle please help !
Mariulka [41]

Answer:

Insufficient Data

Step-by-step explanation:

Please correct the problem. Given details are not enough or/and precise to suggest solution

6 0
3 years ago
What is the missing side
AveGali [126]

The Pythagorean theorem applies to the sides of this right triangle.

... x² + (4/7)² = (5/7)²

... x² = 25/49 -16/49

... x = √(9/49)

... x = 3/7

The unknown side has length 3/7.

_____

You might recognize that this is a 3-4-5 right triangle with a scale factor of 1/7.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A math class is made up of 16 boys; the rest are girls. Sixty percent of the class is boys. How many students are in the math cl
    7·1 answer
  • Simply expression (-16)°
    5·2 answers
  • Solve problems and show work with them
    6·1 answer
  • HELP ME 20 POINTS IF YOU PUT THE WRONG ANSWER YOUR GETTING REPORTED AND ACUTELY PUT THE ANSWER
    10·2 answers
  • Suppose a projectile is fired from a cannon with velocity v0 and angle of elevation θ. The horizontal distance Rθ it travels (in
    7·1 answer
  • 60 minutes = to how many hours​
    6·1 answer
  • Amanda buys four tickets to the baseball game for $24 each which equation shows the closest estimate of the total amount of Aman
    11·2 answers
  • Find the coordinates of the image of the point (-5,5) under translation
    13·1 answer
  • 3x2 + 7x for x =2<br> Solve
    13·2 answers
  • I need the answer to this​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!