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
DaniilM [7]
3 years ago
5

ILL GIVE BRAINLIEST PLZZ I NEED THIS

Mathematics
1 answer:
wel3 years ago
3 0

Answer:

Q1

by \ pythagoras \ theorem : \\(3x +1 )^2 = (3x - 1)^2 +x^2\\\\9x^2 + 6x +1 = 9x^2 + 1 -6x +x^2\\\\9x^2 + 6x +1 = 10x^2 + 1 -6x \\\\ 10x^2 + 1 -6x - 9x^2 -6x -1 = 0 \\\\x^2 -12x = 0\\x(x - 12) = 0\\x = 0, 12\\since \ length \ cannot \be \ 0, x = 12\\OJ = 3x + 1 = 3(12) +1 = 37

Q2

by \  pythagoras  \ thm, \\(7x -12) ^2 = (5x +10)^2 +(2x)^2\\\\49x^ 2 +144 - 168x = 25x^2 +100+ 100x +2x^2\\\\49x^ 2 +144 - 168x - 25x^2 -100- 100x -2x^2 = 0\\\\22x^2 -268x -44 = 0\\11x^2 - 134x - 22 = 0\\x=12.0154

You might be interested in
What number must be added to 15,-6, and 12 to have a mean of 5? Explain.
Genrish500 [490]

You need to add a -1

We can find this by setting up the equation like so

x + (-6) + 12 + 15 / 4 = 5

x + 21 = 20

x = 20 -21

x = -1

Now if we insert -1 where x is located in the equation, you will get a means of 5

3 0
3 years ago
Need your Help please!!
lianna [129]

Answer:

4.

f(x) = (x + 2)(x + 1)(x - 3) = x^3 - 7·x - 6

a = 0 ; b = -7 ; c = -6

5.

a = -3 ∧ b = -2 ∧ c = -3


3 0
3 years ago
If p is inversely proportional to q and p=-8 then q=2, find p when q=-4
Sunny_sXe [5.5K]

Answer:

16

Step-by-step explanation:

5 0
3 years ago
Mrs. Regan went shopping and purchased 37 trees for the yard. ​Mr. Regan also went shopping and bought some trees. ​ ​If they ha
VikaD [51]

Answer:

45 trees

Step-by-step explanation:

82=37+M m=mr.regan

-37. -37

45=M

5 0
3 years ago
Help pleaseeeeee !!!!
masha68 [24]

Answer:

P(10) = 26237[1 + 0.024]^10

Step-by-step explanation:

From the information given :

Initial population, P0 = 26, 237

Annual growth rate, r = 2.4%

Number of Years, n = 10

The general exponential growth relation is give as :

P(x) = P0(1 + r)^n

Where ;

P(x) = population after x years

P0 = Initial population

r = growth rate

n = number of years

P(10) = 26237[1 + 0.024]^10

5 0
2 years ago
Other questions:
  • Use the Distributive Property to multiply. 9(4m + 1) A. 36m + 9 B. 45m C. 36m + 1 D. 13m + 9
    14·1 answer
  • Please help... I'm stuck on number 44 and I can't remember how to do it
    14·2 answers
  • 2,023 nearest hundred
    10·2 answers
  • Determine whether each of the following triangles is a right-angled triangle
    7·1 answer
  • Simplify the expression, Please help!!
    15·1 answer
  • 17. Solve for p in the equation 7p = –63.
    14·2 answers
  • Sketch the graph of the inequality<br> y-3x&gt;-2
    14·1 answer
  • "three food trucks are set up at points a, b, and c. each of the three trucks is the same distance from the food distributor. at
    14·1 answer
  • Write the following using index notation:
    14·2 answers
  • I've done with my quiz, now I have to do the correction for extra point, bit my teacher required to explain how to solve it corr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!