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
torisob [31]
3 years ago
14

Q1. Find y, if √12 - √147 + y√3 = 0

Mathematics
1 answer:
o-na [289]3 years ago
6 0

Answer:

Q1. y = 5 Q2.  (√2 - √3)/2

Step-by-step explanation:

Q1

√12 - √147 + y√3 = 0

Taking -√147 and √12 to the right hand side, we have

y√3 = √147 - √12

y√3 = √(3 × 49) - √(3 × 4)

y√3 = √3 × √49 - √3 × √4

y√3 = √3 × 7 - √3 × 2

y√3 = 7√3 - 2√3

y√3 = 5√3

Dividing both sides by √3, we have

y√3/√3 = 5√3/√3

y = 5

Q2

Sin45° - Cos30°

Since Sin45° = √2/2 and Cos 30° = √3/2

Substituting these values into the equation, we have

Sin45° - Cos30° = √2/2 - √3/2

Taking L.C.M of both factors, we have

Sin45° - Cos30° = (√2 - √3)/2

You might be interested in
Please help me with this sum​
barxatty [35]

Answers:

781 × 8 = 6248

231 × 7 = 1617

421 × 6 = 2526

531 × 5 = 2655

681 × 2 = 1362

951 × 4 = 3804

741 × 3 = 2223

361 × 3 = 1083

931 × 7 = 6517

821 × 2 = 1642

8 0
2 years ago
Rose’s Ringlets, a national hair salon, pays the following in employee benefits each pay period: $700 for health care, 10% of gr
Deffense [45]

Answer:

D $1298

Step-by-step explanation:

10% of 5200 is 520

1% is 52

0.5% is 26

700+520+52+26 = 1298

3 0
3 years ago
A plane is flying from Albuquerque new Mexico to Austin Texas so far it has flown 161 miles or 23% of the total distance of the
Karo-lina-s [1.5K]

Answer: 700 miles.

Step-by-step explanation:

1. You know that 23% of the total distance of the flight from Albuquerque New Mexico to Austin Texas is 161 miles.

2. Then, keeping that information on mind, you can calculate the total distance of the flight (which you call x) as following:

\frac{161miles}{23\%}=\frac{x}{100\%}

Solve for x. Then, you obtain that the result is:

x=\frac{161miles*100\%}{23\%}\\x=700miles

3 0
3 years ago
What is the variable in the expression below?<br><br><br> 9.X
Ludmilka [50]

Answer:

The variable in that expression is x

5 0
2 years ago
Read 2 more answers
The value 5pi/24 is a solution for the equation 4 cos^2 (4x)-3=0. True or false
Margaret [11]

Let's check.

x = 5π/24

4x = 5π/6

cos 4x = cos(5π/6) = cos 150° = -√3/2

cos² 4x = (-√3/2)^2 = 3/4

4 cos² 4x  -3  = 4 (3/4) - 3 = 0

Answer: TRUE

5 0
3 years ago
Other questions:
  • Find the price of a basketball that cost 35$ That is on sale 50%off the regular price
    9·2 answers
  • Of 60 books on a bookself, 24 are nonfiction what percent of the books are not nonfiction?
    15·1 answer
  • Can someone help me with these please.
    5·1 answer
  • 1. Find f(x) if it is known that f(x+5)=x+12.
    7·1 answer
  • K12 10TH GRADE!!!!!!!!!!!!! HAS ANYONE DONE 3.14 Graded Assignment: Congruence and Constructions - Part 2 !!!!!!
    5·1 answer
  • David divided 16.24 by 4 and got the quotient 4.6. Find the correct quotient and tell what you think David did wrong.
    15·1 answer
  • Please help!! Finding missing angles
    15·1 answer
  • Y = 2^x ordered pairs
    8·1 answer
  • Please, my whole grade depends on this question!!!
    6·1 answer
  • Suppose Y(t) = 25e^3t + 12 represents the number of bacteria present at time t minutes. At what time will the population reach 1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!