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
Stels [109]
2 years ago
8

Pls send the answer ​

Mathematics
1 answer:
luda_lava [24]2 years ago
4 0

Answer:

a = \dfrac{46}{17}

b = 0

Step-by-step explanation:

\dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} =

= \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} \times \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} + \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} \times \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} - \sqrt{3}}

= \dfrac{23 + 4\sqrt{15}}{17} + \dfrac{23 - 4\sqrt{15}}{17}

= \dfrac{46}{17}

a = \dfrac{46}{17}

b = 0

You might be interested in
What is the degree of the polynomial and what the y-intercept
Arada [10]

Answer:

Polynom degree: 5

Y intercept point: (0, 80)

Step-by-step explanation:

P(x)=(x+5)(x+4)²(x+1)²

When you expand, the highest power of x is 1 for first term (x+5), 2 for second term (x+4)² and again 2 for (x+1)². Overall, x⁵ will be the x term with highest power. So the degree of the polynom is 5.

The y intercept, i.e. intersection with OY axis, happens for x=0. Thus, P(0)=5×4²×1²=5×16=80. The y intercept point is (0, 80)

5 0
3 years ago
Lines a and b are perpendicular. The equation of line a is y=1/3x+3. What is the equation of line b
kykrilka [37]
Perpendicular lines have slopes that are negative reciprocals to each other, that is, if one slope is a/b, the other is -b/a
in this case, the given slope is 1/3, so the other line's slope is -3/1, which is -3
from the graph we see that the y intercept of line b is -4, so the equation of line b is: y=-3x-4
6 0
4 years ago
Can someone help me with this question please
krek1111 [17]
Any other time I would answer this sorry


fcghyjukiojhuygtfrdghyuj

4 0
3 years ago
The perimeter of a square is 96 inches. if the side length is 2x + 4, what is the value of x and the length of each side?
andriy [413]
Subtract 4 from 96 and divide by 2
4 0
3 years ago
A butcher can cut through 390 pounds of beef a day and 48 pounds less of poultry. Find the absolute value of total beef and poul
shutvik [7]

Step-by-step explanation:

Clue: (I'm not giving the answer this is just clues) The word "absolute" helps you understand not to estimate so you want to get the RIGHT answer not the estimation.

6 0
3 years ago
Other questions:
  • Selena needs to rent a car. The car rental company gives her two options. Option A is to pay $28 a day plus $0.15 a mile and opt
    14·1 answer
  • There are three consecutive even integers. If twice the first integer added to the second is 268, 244 find all three integers.
    13·1 answer
  • If you know geometry please answer <br><br> -geometry
    13·2 answers
  • PLEASE ANSWER QUICKLY<br> (I will give first answer Brainliest)
    5·1 answer
  • In order for Josh to graph the solution to the inequality 4x - 2y &gt; 6, which of the following steps does he need to use? Sele
    10·2 answers
  • Given the function below find p(2x)
    8·1 answer
  • An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and unloading riders more effic
    5·1 answer
  • A right triangle has an angle measure of 52.4 degrees. What is the value of 'x', the missing angle?
    13·1 answer
  • What is the value of k
    11·1 answer
  • What is the value of x in the equation below?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!