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
dem82 [27]
2 years ago
10

Find the value of 4/5 - 7/5 to its lowest terms

Mathematics
1 answer:
erik [133]2 years ago
3 0

Answer:

Step-by-step explanation:

4/5 - 7/5

7-4/5

3/5

Or

4/5 - 7/5

4-7/5

-3/5

You might be interested in
VERY IMPORTANT... write the equation of the line that has a y intercept of (0.4) and a slope of -3/2​
shutvik [7]

Answer:

y = -3/2 x + 4

Step-by-step explanation:

y-4 = -3/2 ( x-0)

y = -3/2 x + 4

7 0
3 years ago
Find the probability​ p(e or​ f) if e and f are mutually​ exclusive, ​p(e)equals 0.25​, and ​p(f)equals 0.51.
Masteriza [31]

The definition of two events being mutually exclusive (or disjoint) only means that it is not possible for the two events to occur together. Given two events, E and F, they are mutually exclusive and also mean independent.

In this case, since events E and F are mutually exclusive, therefore the probability that either E or F will occur will simply be the sum of two events.

P (E or F) = P (E) + P (F)

P (E or F) = 0.25 + 0.51

P (E or F) = 0.76

 

Therefore this means that there is a 76% probability that either E or F will occur.

8 0
3 years ago
Please solve 5 f <br> (Trigonometric Equations)<br> #salute u if u solved it
Zanzabum

Answer:

\beta=45\degree\:\:or\:\:\beta=135\degree

Step-by-step explanation:

We want to solve \tan \beta \sec \beta=\sqrt{2}, where 0\le \beta \le360\degree.

We rewrite in terms of sine and cosine.

\frac{\sin \beta}{\cos \beta} \cdot \frac{1}{\cos \beta} =\sqrt{2}

\frac{\sin \beta}{\cos^2\beta}=\sqrt{2}

Use the Pythagorean identity: \cos^2\beta=1-\sin^2\beta.

\frac{\sin \beta}{1-\sin^2\beta}=\sqrt{2}

\implies \sin \beta=\sqrt{2}(1-\sin^2\beta)

\implies \sin \beta=\sqrt{2}-\sqrt{2}\sin^2\beta

\implies \sqrt{2}\sin^2\beta+\sin \beta- \sqrt{2}=0

This is a quadratic equation in \sin \beta.

By the quadratic formula, we have:

\sin \beta=\frac{-1\pm \sqrt{1^2-4(\sqrt{2})(-\sqrt{2} ) } }{2\cdot \sqrt{2} }

\sin \beta=\frac{-1\pm \sqrt{1^2+4(2) } }{2\cdot \sqrt{2} }

\sin \beta=\frac{-1\pm \sqrt{9} }{2\cdot \sqrt{2} }

\sin \beta=\frac{-1\pm3}{2\cdot \sqrt{2} }

\sin \beta=\frac{2}{2\cdot \sqrt{2} } or \sin \beta=\frac{-4}{2\cdot \sqrt{2} }

\sin \beta=\frac{1}{\sqrt{2} } or \sin \beta=-\frac{2}{\sqrt{2} }

\sin \beta=\frac{\sqrt{2}}{2} or \sin \beta=-\sqrt{2}

When \sin \beta=\frac{\sqrt{2}}{2} , \beta=\sin ^{-1}(\frac{\sqrt{2} }{2} )

\implies \beta=45\degree\:\:or\:\:\beta=135\degree on the interval 0\le \beta \le360\degree.

When  \sin \beta=-\sqrt{2}, \beta is not defined because -1\le \sin \beta \le1

4 0
3 years ago
Quiz
alisha [4.7K]

Answer:

the first one

Step-by-step explanation:

(-5+5) will equal 0. Because of the zero property no matter what you multiply it by it will equal 0. Same thing with (9-9)

7 0
3 years ago
The value of 4x^2-5 when x=3
Veseljchak [2.6K]

Answer:

31

Step-by-step explanation:

Plug in 3 for x in the expression:

4(3²) - 5

Note that there are no parenthesis (other than the one I added, to make it easier for you. Follow the order of operations, PEMDAS. PEMDAS = Parenthesis, Exponents (& Roots), Multiplication, Division, Addition, Subtraction, and the left -> right rule.

First, solve the exponent:

4(3²) - 5 = 4(3 * 3) - 5 = 4(9) - 5

Next, solve the multiplication:

4(9) - 5 = 36 - 5

Finally, subtract:

36 - 5 = 31

31 is your answer.

~

7 0
3 years ago
Read 2 more answers
Other questions:
  • For the function f(x)=(7-8x)^2, find f^-1 determine whether f^-1 is a function
    11·1 answer
  • Zoe's bank offers 2% simple interest on Simple Savings accounts. If she deposits her $500 of graduation money into a Simple Savi
    9·1 answer
  • What is 23.5 is in expanded and word
    9·1 answer
  • An elevator is on the twelfth floor it goes down 11 floors and than up 5 floors what floor is the elevator on now
    13·2 answers
  • Alejandro used a mathematical property to create two equivalent expressions.
    9·1 answer
  • Go For questions 6a-6d, choose Yes or No to tell whether 3 is the GCF of the pair of numbers. 6a 9, 15 6b 12, 18 6c 15, 27 6d 30
    13·1 answer
  • The sum of 3 numbers is 62. The first number can be represented by the variable x. The second number is 7 more than the first nu
    11·1 answer
  • I need help figuring out the answers to these kinda poorly worded questions
    12·1 answer
  • Question:
    10·1 answer
  • If
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!