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
Contact [7]
2 years ago
9

⅖ = ½ x Explain your reasoning

Mathematics
1 answer:
fomenos2 years ago
4 0

x = 4/5

2/5=1/2x

Step 1: Flip the equation.

1/2x=2/5

Step 2: Multiply both sides by 2.

2*(1/2x)=2*(2/5)x=4/5

You might be interested in
Please help me with these, oh sweet jesus
Lelechka [254]

Answer:

77.  \cot^{6} x = \cot^{4} x \csc^{2}x - \cot^{4} xProved

78.  \sec^{4}x \tan^{2} x = \sec^{2}x [\tan^{2}x + \tan^{4}x ] Proved

79. \cos^{3} x\sin^{2} x = [\sin^{2}x - \sin^{4}x] \cos x Proved.

80. \sin^{4}x - \cos^{4}x = 1 - 2\cos^{2}x + 2 \cos^{4} x Proved.

Step-by-step explanation:

77. Left hand side

= \cot^{6} x

= \cot^{4} x \times \cot^{2} x

= \cot^{4}x [\csc^{2}x - 1]  

{Since we know, \csc^{2} x - \cot^{2}x = 1}

= \cot^{4} x \csc^{2}x - \cot^{4} x  

= Right hand side (Proved)

78. Left hand side

= \sec^{4}x \tan^{2} x

= \sec^{2} x [1 + \tan^{2}x] \tan^{2} x  

{Since \sec^{2}x - \tan^{2}x = 1}

= \sec^{2}x [\tan^{2}x + \tan^{4}x ]

= Right hand side (Proved)

79. Left hand side  

= \cos^{3} x\sin^{2} x

= \cos x[1 - \sin^{2} x] \sin^{2} x

{Since \sin^{2}x + \cos^{2} x = 1}

= [\sin^{2}x - \sin^{4}x] \cos x

= Right hand side

80. Left hand side  

= \sin^{4}x - \cos^{4}x

= [\sin^{2}x + \cos^{2}x]^{2} - 2\sin^{2} x \cos^{2}x

{Since \sin^{2}x + \cos^{2} x = 1}

= 1 - 2\cos^{2} x[1 - \cos^{2}x ]

= 1 - 2\cos^{2}x + 2 \cos^{4} x

= Right hand side. (Proved)

7 0
3 years ago
Translate (in terms of x) then solve the algebraic equation: The sum of a number and 3 is subtracted from 10 the result is 5.
vitfil [10]

Answer:

The answer is 2

Step-by-step explanation:

Let the number be x

10 - (3 + x) = 5

10 - 3 -x = 5

7 - x = 5

x = 7-5

x = 2

8 0
2 years ago
What is 3/4 of of the power of 3
ahrayia [7]

If you mean to the power of 3 the answer should be 0.421875

6 0
3 years ago
Read 2 more answers
I need the answer to this question
alexgriva [62]
I'm sorry but I really can't see the picture
7 0
3 years ago
Can you use division to solve a missing factor problem
klasskru [66]
Yes, you can use division to solve a missing factor problem
5 0
3 years ago
Other questions:
  • What is 4 as a ratio
    5·2 answers
  • What is the approximate value of b, rounded to the nearest tenth? Use the law of sines to find the answer. Law of sines: answers
    8·1 answer
  • Using the substitution method, Vito is solving the following system of equations algebraically: y + 3x = -4 2x-3y = -21% D Which
    12·1 answer
  • What's linear inequalities
    9·1 answer
  • 2.1x10 to the -3 power x 2x10 to the second power
    15·1 answer
  • If anyone could help NOW I would appreciate it
    7·1 answer
  • an area of 6 yards is equal to 54 square feet. 9 square yards is equal to how many square feet? explain or show your reasoning
    5·1 answer
  • Gracie is buying new jackets for her dance squad. She will pay $26.50 for each jacket
    6·1 answer
  • Solve for x<br> x - 20 + 2x = 35
    10·1 answer
  • Find lim f(x) if f(x)<br> x-&gt;5<br> =<br> {<br> -x² -1, x #5<br> -3, x=5
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!