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
igomit [66]
3 years ago
7

Explain the difference in meaning between 8^2+2^2 and (8+2)^2

Mathematics
1 answer:
Tpy6a [65]3 years ago
3 0
8^2 is 64 and 2^2 is 4. When you add them together you get 68.
(8+2)^2 is the same as 10^2 which is 100.
68≠100
You might be interested in
Given sin y = -4/5, where π < y < 3π/2, and cos x = 12/13, where 0 < x < π/2. Find the exact value of sin (x - y).
konstantin123 [22]

Answer:

Solution given:

sin y = -4/5

p/h=4/5

p=4

h=5

b=√{5²-4²)=3

cos y = b/h=-3/5

again

cos x=12/13

b/h=12/13

b=12

h=13

p=√(13²-12²)=5

sin x=p/h=5/13

now

sin[x-y]=sinxcosy-cosxsiny

=5/13×-3/5-(12/13×-4/5)=33/65 is your answer.

3 0
3 years ago
Use the Pythagorean theorem to find the length of the leg in the triangle below. side a is 35 , and side c is 21. What is B?
garri49 [273]

Answer:

b=-784!

Step-by-step explanation:

If pythagorean theorem is the following (see below), then we can work backwards in order to solve for b!

a^{2} +b^2=c^2

35^2 +b=21^2\\1225+b=441

Now all that's left is to subtract 1225 and we should have our answer!

b=-784!

4 0
3 years ago
N is the midpoint of . Find the length of the line segment PQ if NQ = 18. answers:
Vitek1552 [10]
36 because NQ is 18 and the tic mark means that each half is equal to each other, and 18+18=36 :D
5 0
3 years ago
Find the volume of the solid formed by rotating the region inside the first quadrant enclosed by y=x^3 and y=9x about the x-axis
Lisa [10]
First solve x³=9x

x^3-9x=0
\\x(x^2-9)=0
\\x(x-3)(x+3)=0
\\x=0, x=3,x=-3

We can ignore x = -3 because it is not in the first quadrant.

<span>So our integral is going to go from x=0 to x=3.
</span>
<span>Now we can use the formula
</span><span>V=\int_{a}^{b}\pi f(x)^2dx
</span>\int\limits_{0}^{3}(\pi (9x)^2-\pi(x^3)^2)dx&#10;\\\int\limits_{0}^{3}(\pi (9x)^2-\pi(x^3)^2)dx&#10;\\\pi\int\limits_{0}^{3}(81x^2-x^6)dx&#10;\\2\times \int\limits_{0}^{3}[\pi(9x)^2-\pi(x^3)^2]dx&#10;\\\pi\left[81\frac{x^3}{3}-\frac{x^7}{7}\right]_{0}^{3} \\ \\\frac{2916\pi}{7}<span>
</span>
7 0
3 years ago
Can someone explain to me the Laws of Sine and Cosine. Will mark brainliest.
worty [1.4K]

Answer:

here you are

i hope it helps! :)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find The Sum . Write the answer in simplest form .
    13·1 answer
  • Arm span is the physical measurement of the length of an individual's arms from fingertip to fingertip. A man’s arm span is appr
    11·1 answer
  • Solve.<br><br> −4/3x+1/6&lt;7/9
    12·2 answers
  • -2 -13.8x = -8 -(6x+1)
    7·1 answer
  • Determine the division problem whose quotient is X2-2x-2+(11x+X2-2x-2+(11x+2/x2+2x+2)/x2+2x+2
    6·1 answer
  • Bloom works for 7.5 hours a day how much money would he make if he made $15.76 per hour
    9·1 answer
  • a 9 grade math class has 27 students there are twice as many girls in this class as there are boys.write a system of equation th
    15·1 answer
  • Plzzz help me I will give you brainliest Plz try to give both ans if you don't know then just give 11 b ans
    6·2 answers
  • Who knows how to do this ?
    6·1 answer
  • 13. Diberi v = u + at, cari nilai t apabila v = v = 42 u=-8 dana - 5. <br>A.10<br>B.8<br>C.6<br>D.4​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!