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
tekilochka [14]
3 years ago
11

Maths plz help me soon xD

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

rationalise the denominator by multiplying both top and bottom by (8-5√3) then expand and simplify

You might be interested in
What is the equation of the line graphed below?​
satela [25.4K]
It’s
Y=2x + 1

have a good day!
3 0
2 years ago
The cost to rent a moving truck is a flat fee of $25 plus $0.60 per mile. The equation c = 25 + 0.6m models the cost, c, in doll
3241004551 [841]
The independent is 25 and the dependent is .6.
5 0
2 years ago
Let x^2+15x=49
Slav-nsk [51]
<span>x^2 + 15x + 56.25 = 105.25

    "Completing the square" is one of many different techniques for solving a quadratic equation. What you do is add a constant to both sides of the equation such that the lefthand side can be factored into the form a(x+d)^2. For instance, squaring (X+D) = X^2 + 2DX + D^2. Notice the 2DX term. That is the same term as the 15x term in the problem. So 2D = 15, D = 7.5. And D^2 = 7.5^2 = 56.25.
So we have
 x^2 + 15x + 56.25 = 49 + 56.25
 Which is
 x^2 + 15x + 56.25 = 105.25
  Which is the answer desired.

   Now the rest of this is going beyond the answer. Namely, it's answering the question "Why does complementing the square help?" Well, we know that the left hand side of the equation can now be written as
 (x+7.5)^2 = 105.25

   Now take the square root of each side
 (x+7.5) = sqrt(105.25)

   And let's use both the positive and negative square roots.
So x+7.5 = 10.25914226
 and
 x+7.5 = -10.25914226

   And let's find X.
 x+7.5 = 10.25914226
 x = 2.759142264

   x+7.5 = -10.25914226
 x = -17.75914226

   So the roots for x^2 + 15x - 49 is 2.759142264, and -17.75914226</span>
3 0
3 years ago
Read 2 more answers
Can someone help me on this question? I Just need help with the 3rd question. Use the word bank below to answer. I’ll mark you b
lord [1]

Answer:

Transitive property

Step-by-step explanation:

I'm so sorry if it's wrong I took geo last year online and I still hated proofs. Transitive property is basically when x=y, y=z so x=z. since <4 and <5 are congruent and <1 and <4 are congruent, that would make <1 and <5 congruent because of the transitive property. Good luck with proofs!

3 0
2 years ago
What is the equation of a line that passes through the point (4, 2) and is perpendicular to the line whose equation is y= x/3−1
Alex_Xolod [135]
Perpendicular lines have slopes that are opposite and reciprocal. Therefore, the line we are looking for has a -3 slope.
y= -3x+b

Now, we can substitute in the point given to find the intercept.
2= -3(4)+b
2= -12+b
b=14

Finally, put in everything we've found to finish the equation.
y= -3x+14
6 0
3 years ago
Other questions:
  • Jean climbed 2/3 of the distance to the top of the cliff as shown on the number line. Terry climbed 1/3 of the distance less tha
    13·1 answer
  • To have a batting averages over .500,how many hits in 45 times at bat would Rail and Karen need?
    5·1 answer
  • 30 children are going on a trip. It costs £5 including lunch. Some children take their own packed lunch. They pay only £3.the 30
    8·1 answer
  • Describe a real world situation between the area of a rectangle and its width, as the width varies and the length stays the same
    10·1 answer
  • What is 02.15cm in meters
    7·1 answer
  • How do u do number 2 and 3
    15·1 answer
  • Marcus has $40 in his pocket. Joseph has twice as much as Marcus, Jenna has half as much as Marcus, and Sam has one-third as muc
    15·2 answers
  • Please answer correctly! I will Mark you Brainliest!
    15·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST THANK YOU
    15·1 answer
  • New York City is approximately 4.68×10²square miles. Los Angeles is 503 square miles.How many times larger is Los Angeles in New
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!