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
Mashutka [201]
2 years ago
11

Multiply:(square root 10 + 2 square root 8)( square root 10 - 2 square root 8)

Mathematics
2 answers:
kogti [31]2 years ago
7 0
Answer: -22.

Explaination: if you multiply the square root 10+. And Square the root of 8
pantera1 [17]2 years ago
3 0

Answer:

-22

Step-by-step explanation:

We need to multiply the following:

(\sqrt{10} +2\sqrt{8})(\sqrt{10}-2\sqrt{8})

First, we need to FOIL out this expression, then we can simplify it

(\sqrt{10} +2\sqrt{8})(\sqrt{10}-2\sqrt{8})\\\\(\sqrt{10})( \sqrt{10} )+(2\sqrt{8})(\sqrt{10})-(2\sqrt{8})( \sqrt{10})-(2\sqrt{8})(2\sqrt{8}) \\\\10+2\sqrt{80} -2\sqrt{80} -4\sqrt{64} \\\\10-4(8)\\\\10-32\\\\-22

You might be interested in
What is the perimeter of the triangle
erica [24]

Answer:P=a+b+c

Step-by-step explanation:

7 0
2 years ago
Find XY.<br> ._________.___.<br> X Y 7 Z
Rufina [12.5K]

Answer:

hey dude, The formula is (x-y)³=x³-3x²y+3xy²-y³.

6 0
2 years ago
Which factorizations can be used to identify the real zeros of the function f(x)=20x^2+23x-6
Ainat [17]
It’s the quadratic formula because it’s give directly the zeros of a function
5 0
3 years ago
Is sin theta=5/6, what are the values of cos theta and tan theta?
mina [271]

let's bear in mind that sin(θ) in this case is positive, that happens only in the I and II Quadrants, where the cosine/adjacent are positive and negative respectively.

\bf sin(\theta )=\cfrac{\stackrel{opposite}{5}}{\stackrel{hypotenuse}{6}}\qquad \impliedby \textit{let's find the \underline{adjacent side}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{6^2-5^2}=a\implies \pm\sqrt{36-25}\implies \pm \sqrt{11}=a \\\\[-0.35em] ~\dotfill

\bf cos(\theta )=\cfrac{\stackrel{adjacent}{\pm\sqrt{11}}}{\stackrel{hypotenuse}{6}} \\\\\\ tan(\theta )=\cfrac{\stackrel{opposite}{5}}{\stackrel{adjacent}{\pm\sqrt{11}}}\implies \stackrel{\textit{and rationalizing the denominator}~\hfill }{tan(\theta )=\pm\cfrac{5}{\sqrt{11}}\cdot \cfrac{\sqrt{11}}{\sqrt{11}}\implies tan(\theta )=\pm\cfrac{5\sqrt{11}}{11}}

5 0
2 years ago
A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. 452 fee
Troyanec [42]

Answer:

school building, so the fourth side does not need Fencing. As shown below, one of the sides has length J.‘ (in meters}. Side along school building E (a) Find a function that gives the area A (I) of the playground {in square meters) in

terms or'x. 2 24(15): 320; - 2.x (b) What side length I gives the maximum area that the playground can have? Side length x : [1] meters (c) What is the maximum area that the playground can have? Maximum area: I: square meters

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Solve each proportion examples 1 and 2 <br> 1.5 6 = 10p p =
    15·1 answer
  • 68 goes into 481 how many. times in rounding
    9·2 answers
  • Simon used 3 pears and 9 apples to make a fruit salad. What was the ratio of the number of pears to the number of apples in the
    8·1 answer
  • A square is inscribed in a circle that has a radius of 2 cm. What is the length of one side of the square?
    12·1 answer
  • What is the answer for this question??
    8·1 answer
  • Multiplication with exponents confuses me..
    14·1 answer
  • Evaluate each value expression for the given value of the variable : 33-7w +6 when w=4
    15·1 answer
  • A sweater priced at $34.99 is on sale for 25% off. Find the cost with 7.5% sales tax.
    11·1 answer
  • Suppose that $2000 is loaned at a rate of 19.5%, compounded semiannually. Assuming that no payments are made, find the amount ow
    8·1 answer
  • Which one should I choose?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!