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
Stella [2.4K]
3 years ago
13

140 subtracted from the square of a number the result is three times the number find the negative solution

Mathematics
1 answer:
natima [27]3 years ago
5 0

Answer:

Suppose~that~the~number~is~x.\\According~to~question,\\x^2-140=3x\\or, x^2-3x-140=0\\From~the~quadratic~formula,\\x = \frac{-(-3)+\sqrt{(-3)^2-4(1)(-140)} }{2(1)} ~and ~x= \frac{-(-3)-\sqrt{(-3)^2-4(1)(-140)} }{2(1)} \\or, x = \frac{3+\sqrt{9+560} }{2}~and~x=\frac{3-\sqrt{9+569} }{2}\\or, x = \frac{3+\sqrt{569} }{2}~and~x=\frac{3-\sqrt{569} }{2}\\So,~the~required~negative~number~is~\frac{3-\sqrt{569} }{2}.

You might be interested in
What's the correct answer and why?
alexandr402 [8]
3x^4 becomes 3(3x)^4=3*3^4*x^4
y^2 becomes (3y)^2=3^2y²
the new z=3² the old z, so b is correct.
4 0
3 years ago
Rachel has a collection of 40 stuffed animals. 3/8 of the animals are bears and are dogs. How many bears and dogs does she have?
Ludmilka [50]

Answer:

total animal 40

number of bears are 40×3/8=15

number of dogs will be 40 - 15 = 35

Step-by-step explanation:

hope it helped u buddy

5 0
3 years ago
Lewis is rolling a 10-sided die 250 times. Each side of the die is labeled with a number 1 – 10. Based on the theoretical probab
oksano4ka [1.4K]
75 time because the proabablity of rolling any number each time is 1/10 so 250/10=25 the mutiples of 3 in 1-10 are 3,6,9 so 3*25 =75 tmes
5 0
3 years ago
Read 2 more answers
Which of the following expressions is equivalent to the expression a^2/3
vladimir1956 [14]

∛a² → C

From the ' law of exponents '

a^{\frac{m}{n} } = \sqrt[n]{a^{m} }


3 0
3 years ago
John has two open packs of paper. One pack has 31 pieces of paper. The second pack has 45 pieces of paper. How many pieces of pa
Tems11 [23]
D 76 pieces of paper. Just add
8 0
3 years ago
Other questions:
  • Given the function. f(x)= x-2+3, choose the correct transformation
    15·1 answer
  • Which of the following metric prefixes is largest? <br><br>A.nano<br>B.milli<br>C.centi<br>D.micro
    7·1 answer
  • What is the value of begin expression . . . 81 times x raised to the second power, times y raised to the third power, plus z . .
    13·1 answer
  • 6. Name a fraction larger than 1/2 and<br> smaller than 5/8
    14·2 answers
  • Find a pair of factors for each number by using the difference of two squares.
    5·1 answer
  • C is directly proportional to D, when C-125 and D=5.
    6·1 answer
  • Help me out with this please​
    6·2 answers
  • Can someone please help me out? I am noooottt good at these.
    15·2 answers
  • What’s the slope of the line for each of these! Hurry I at testing!
    9·2 answers
  • HELPP! ASAP PLS!! Find the surface area of the composite solid. Leave your answer in exact terms.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!