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
dimaraw [331]
3 years ago
9

One of our brainliest, Konrad509, made this:

Mathematics
1 answer:
Reil [10]3 years ago
7 0

\dfrac{B_x \sqrt{74_x}}{1D_x}+J_x51_x=4G3_x

A=10, B=11, C=12, etc.

\dfrac{11\cdot x^0\cdot \sqrt{7\cdot x^1+4\cdot x^0}}{1\cdot x^1+13\cdot x^0}+19\cdot x^0\cdot (5\cdot x^1+1\cdot x^0)=4\cdot x^2+16\cdot x^1+3\cdot x^0\\\\\dfrac{11\sqrt{7x+4}}{x+13}+19(5x+1)=4x^2+16x+3\\\\\dfrac{11\sqrt{7x+4}}{x+13}+95x+19=4x^2+16x+3\\\\11\sqrt{7x+4}+95x(x+13)+19(x+13)=(4x^2+16x+3)(x+13)\\\\11\sqrt{7x+4}+95x^2+1235x+19x+247=4x^3+52x^2+16x^2+208x+3x+39\\\\11\sqrt{7x+4}=4x^3-27x^2-1043x-208\\\\121(7x+4)=(4x^3-27x^2-1043x-208)^2

121(7x+4)=(4x^3-27x^2-1043x-208)^2\\\\847x+484=16 x^6 - 216 x^5 - 7615 x^4 + 54658 x^3 + 1099081 x^2 + 433888 x + 43264\\\\16 x^6 - 216 x^5 - 7615 x^4 + 54658 x^3 + 1099081 x^2 + 433041 x +42780=0

Now, the "only" thing that remains to do is solving the above equation.

While making this problem I only made sure it has a solution. I didn't try to solve it myself and I didn't know it will end up with such "convoluted" polynomial. Sorry to everyone who tried to solve it... m(_ _)m

I think the best way to approach it is using the rational root theorem since we know that x\in\mathbb{N}. Moreover we can deduce that x\geq19 since there is J and J=19.

After you succesfully solve it, you should get the answer x=20.

You might be interested in
Consider random samples of size 80 drawn from population A with proportion 0.48 and random samples of size 66 drawn from populat
gogolik [260]

Answer:

Standard error = 0.070

Step-by-step explanation:

Formula for the standard error of the distribution of differences in sample proportions is;

σ_(A - B) = √((p_a^(1 - p_a^)/n_a) + (p_b^(1 - p_b^)/n_b))

We are given;

p_a^ = 0.48

n_a = 80

p_b^ = 0.13

n_b = 66

Thus;

σ_(A - B) = √((0.48(1 - 0.48)/80) + (0.14(1 - 0.13)/66))

σ_(A - B) = √0.00496545455

σ_(A - B) = 0.070

5 0
3 years ago
Please, help and please answer my questions Lately, no-one's answering my questions-
evablogger [386]

Answer:

I think the last you already have is right. I wasn’t very good at this but I try

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Hii I just wasn't sure about how to answer this so could someone help?
balandron [24]

Answer:

1/2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Chuck is having carpet installed in a small office. It will cost $75.00 for a room that measures 6ft X 5ft. At this rate, how mu
Hatshy [7]

Answer:

1200$

Step-by-step explanation:

3 0
3 years ago
Can you help me with this? thanks made it 20 points!
liraira [26]
I agree with Roaltyjess<span />
8 0
3 years ago
Other questions:
  • 1. Varun said that when you multiply three positive and negative decimals, the answer changes depending on where you place the p
    13·1 answer
  • Graph a line that contains the point -6,1 and has a slope of 5
    9·2 answers
  • olaf has 250 files on an external hard drive of those files 12% are photos.(a)write a percent proportion to find the number of f
    14·1 answer
  • I need an answer again for this question.
    11·2 answers
  • Please help!! If y = sin x, then dy/dx =
    14·1 answer
  • Pleasssssseeee help!​
    11·2 answers
  • Sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. After collecting only three shark’s teeth, S
    11·1 answer
  • Fred owns an oil change shop and is doing some research on car colors. Saturdays are
    6·1 answer
  • For charles the great please help
    6·1 answer
  • Stuck on this question:<br> Solve 6(2y-3)-10=2y
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!