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
Helga [31]
3 years ago
11

Anyone know how to check solution, please help if u do

Mathematics
1 answer:
Ivenika [448]3 years ago
3 0
Let's check your answer. To do this, you would simply plug your answer into the equation and see if it works. 
5(y - 3) - 2 (3 - 2y) = 6
5(3 - 3) - 2(3 - 2 × 3) = 6

The equation works! 

Y = 3

Great work!

You might be interested in
The sum of the first three terms of an arithmetic sequence is 108, and the sum of the next three terms is 183. what is the value
qaws [65]
The key is to find the first term a(1) and the difference d.

in an arithmetic sequence, the nth term is the first term +(n-1)d
the firs three terms: a(1), a(1)+d, a(1)+2d
the next three terms: a(1)+3d, a(1)+4d, a(1)+5d,
a(1) + a(1)+d +a(1)+2d=108
a(1)+3d + a(1)+4d + a(1)+5d=183

subtract the first equation from the second equation: 9d=75, d=75/9=25/3
Plug d=25/3 in the first equation to find a(1): a(1)=83/3

the 11th term is: a(1)+(25/3)(11-1)=83/3 +250/3=111

Please double check my calculation. <span />
4 0
3 years ago
What is the solution to the proportion 3/m=12/15
qaws [65]
B 3.75 it is simple it is easy 
6 0
3 years ago
Read 2 more answers
How to solve this ? I am not sure pls if you know the answer answer it I really neeed it for marks
xz_007 [3.2K]

Answer:

L.S = R.S ⇒ Proved down

Step-by-step explanation:

Let us revise some rules in trigonometry

  1. sin²α + cos²α = 1
  2. sin2α = 2 sin α cosα
  3. cscα = 1/sinα

To solve the question let us find the simplest form of the right side and the left side, then show that they are equal

∵ L.S = csc2α + 1

→ By using the 3rd rule above

∴ L.S = \frac{1}{sin2\alpha} + 1

→ Change 1 to \frac{sin2\alpha}{sin2\alpha}

∴ L.S = \frac{1}{sin2\alpha} + \frac{sin2\alpha}{sin2\alpha}

→ The denominators are equal, then add the numerators

∴ L.S = \frac{1+sin2\alpha}{sin2\alpha}

∵ R. S = \frac{(sin\alpha+cos\alpha)^{2} }{sin2\alpha}

∵ (sinα + cosα)² = sin²α + 2 sinα cosα + cos²α

∴ (sinα + cosα)² = sin²α + cos²α + 2 sinα cosα

→ By using the 1st rule above, equate sin²α + cos²α by 1

∴ (sinα + cosα)² = 1 + 2 sinα cosα

→ By using the 2nd rule above, equate 2 sinα cosα by sin2α

∴ (sinα + cosα)² = 1 + sin2α

→ Substitute it in the R.S above

∴ R. S = \frac{1+sin2\alpha}{sin2\alpha}

∵ L.S = R.S

∴ csc 2α + 1 = \frac{(sin\alpha+cos\alpha)^{2} }{sin2\alpha}

4 0
3 years ago
What is 57.8 minus 4.07 SIMPLIFY.
LenaWriter [7]
57.80 - 4.07

= 57.80 - 4.00 - 0.07

= 53.80 - 0.07

= 53.73
6 0
3 years ago
Read 2 more answers
How can you use four rods that measure 2 cm 5 cm 7 cm 9 cm to measure a length of one
vichka [17]
<span>If you put the 9cm and 2cm rods together end-on-end, the new length is 11cm. Now if you repeat this with the 7cm and 5cm rods that new length is 12cm, so the difference between the two is now 1 cm. It does not seem very practical to walk around measuring items using the rods like this, so you could then make a small rod or use a strip of paper equal to the difference (1cm) as a standard measuring tool.</span>
5 0
3 years ago
Other questions:
  • What is 1/3 +1/4 equal in math
    13·2 answers
  • Rewrite 4 6/7 as an improper fraction.<br><br> sorry this is the correct question
    13·2 answers
  • Evaluate the logarithmic expression log6 1
    14·1 answer
  • kendall brought a vase that was priced at 40$. addition, she had to pay 3% sales tax. How much did she pay for the vase
    5·1 answer
  • Check if given set of numbers 6,8,10 forms pythagorean triplet or not?​
    10·1 answer
  • Do number 6 plz thanks​
    11·2 answers
  • Do the questions that are circled also GCF stands for greatest common factor
    12·2 answers
  • Rachel has a bag of marbles. She added 6 marbles to the bag but then took out 8 marbles. The bag now has 14 marbles. How many ma
    10·1 answer
  • Evaluate the following functions for the given value.<br> 19. f(x) = -x3 + x2; -2
    6·1 answer
  • Graph each line using intercepts 1/4 x + 2y =2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!