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
Help please I don't understand.........
frez [133]
Given the graph, you can assume that f(x) is the y of an equation.

When f(2) is given, this means that what is the y value when x=2?

As you can see, the solution is between 8 and 10. Meaning that the closest answer is 9.

Hope I helped :)
6 0
3 years ago
∫<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bxdx%7D%7B%28x%5E%7B2%7D%2B4%29%5E%7B3%7D%20%7D" id="TexFormula1" title="\frac{xdx}{
photoshop1234 [79]

Substitute u=x^2+4 and du=2x\,dx. Then the integral transforms to

\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \int \frac{du}{u^3}

Apply the power rule.

\displaystyle \int \frac{du}{u^3} = -\dfrac1{2u^2} + C

Now put the result back in terms of x.

\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \left(-\dfrac1{2u^2} + C\right) = -\dfrac1{4u^2} + C = \boxed{-\dfrac1{4(x^2+4)^2} + C}

3 0
2 years ago
770 packed lunches are shared equally between 35 classes. how many children in each class receive a packed lunch?
elixir [45]
Answer is 22
Step by step
770 divided by 35 classes = 22 children get packed lunches
4 0
1 year ago
Find the perimeter of the figure to the nearest hundredth.
Lorico [155]
The answer is 6.3 bc the perimeter would be all of them added together
6 0
3 years ago
Read 2 more answers
Solve the equation using the multiplicative property of equality and the reciprocal. -2(a-5)=-1/2)10. (-1/2)(-2)(q-5)=(-1/2)10.
finlep [7]

Answer:

10 pa Asia slisa gsushwish quiz docs docs dizzy Yaakov Diario Garcia

5 0
3 years ago
Other questions:
  • Hot dog buns come in packages of 8. For the school picnic, Mr. Spencer bought 30 packages of hot dog buns. How many hot dog buns
    14·2 answers
  • Where is tge vertex of the graph of y=-x^2
    8·1 answer
  • Explain what it means to have 20% more of a given quantity.
    10·1 answer
  • A family of five goes out to dinner and spends $114.10. This includes a 20% tip. How much did the family's server receive for a
    6·2 answers
  • In ®A shown below, radius AB is perpendicular to chord XY at point C. If XY=24 and AC=5 cm, what is the radius of the circle?
    6·2 answers
  • Joe has a bag of marbles. There are 2 purple, 1 red, and 3 green marbles in the bag. Joe selects a marble, does not replace it b
    12·1 answer
  • 4y-6 = 2y +8<br> I need helppp
    11·2 answers
  • DE is a midsegment of AABC. Find the value of x.
    13·1 answer
  • -17=x-15 what does x equal?
    10·2 answers
  • Help me please I can’t figure it out!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!