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
klasskru [66]
3 years ago
8

Four and one half minus two and seventh eighths

Mathematics
2 answers:
kondaur [170]3 years ago
8 0
The Answer is 13/8 or 1 5/8 or 1.625 they all equal the same just different forms!:)
Luden [163]3 years ago
4 0

Answer:

13/8 or 1 5/8 simplified

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

You might be interested in
Multiply (2a-5)(4a-7) Simplify your answer
Pie

(2a - 5)(4a - 7)

2a(4a - 7) - 5(4a - 7)

8 {a}^{2}  - 14a - 20a  +  35

8 {a}^{2}  - 34a + 35

7 0
3 years ago
Read 2 more answers
Find the price per unit for each item, then choose the best buy. a. Cereal, 10 oz. box for $5.90 would b. Cereal, 24 oz. box for
brilliants [131]
The Best Buy would be the 24 oz. box.
4 0
3 years ago
Which points on the curve of x^2 - xy - y^2 = 5 have vertical tangent lines?
algol [13]

We need to differentiate this with respect to x to see if we can find an expression for the derivative of y at various points.  That will be the slope of the tangent to the curve.  Then we want to see where that derivative might be infinite -- i.e., where the tangent is vertical.

 

It's not written as a function, but it can still be differentiated using the chain rule:

 

x2 + xy + y2 = 3

(2x) + (x dy/dx + y dx/dx) + (2y dy/dx) = 0

 

(I used parentheses to show the differentiation of each term in the original equation.)

 

2x + x dy/dx + y + 2y dy/dx = 0

2x + y = -x dy/dx - 2y dy/dx

2x + y = dy/dx (-x -2y)

-(2x + y)/(x + 2y) = dy/dx

 

We have the derivative of y, but it's defined partly in terms of y itself.  That's OK.  Let's go on...

 

So where would the slope be infinite?  That would happen when x + 2y = 0, or y = -x/2

 

Let's plug that in for y in the original equation to find points where that's the case.

 

x2 + xy + y2 = 3

x2 + x(-x/2) + (-x/2)2 = 3

x2 - x2/2 + x2/4 = 3

3x2 / 4 = 3

x2 = 4

x = ±2

 

So we have two x values where the tangent might be vertical.  Let's plug them into the equation and see what the y values are.  First x = 2...

 

x2 + xy + y2 = 3

4 + 2y + y2 = 3

y2 + 2y + 1 = 0

(y + 1)2 = 0

y = -1

 

So at the point (2, -1) the tangent is vertical.

 

Now try x = -2...

 

x2 + xy + y2 = 3

4 - 2y + y2 = 3

y2 - 2y + 1 =0

(y - 1)2 = 0

y = 1

 

So at the point (-2, 1) the tangent is vertical.

8 0
2 years ago
Which property applies only to addition and multiplication
True [87]
The property the applies only to addition and multiplication is the commutative property. It means that the numbers can be arranges in any order.  so for example you will get the same answer whether you do
5+6 or 6+5
6 0
3 years ago
Read 2 more answers
What is the solution to 4+5e^x+2 =11
Nezavi [6.7K]

Answer:

x =0

Step-by-step explanation:

4+5e^x+2 =11

Combine like terms

6 + 5e^x =11

Subtract 6 from each side

6-6 + 5e^x =11-6

5 e^x = 5

Divide by 5 on each side

5 e^x /5 = 5/5

e^x = 1

Take the natural log on each side

ln (e^x) = ln(1)

x = ln(1)

x =0

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which logarithmic equation is equivalent to 8^2 = 64?
    6·1 answer
  • 11 kl = _____ l<br><br> 1.1<br> 110<br> 1,100<br> 11,000
    14·2 answers
  • John has 28 cards. He gives his friend Timmy 10 cards and gave the rest to his brother. Then he gained 10 cards and
    7·2 answers
  • Charlie and Leo were playing with toy cars. Charlie said to Leo that if you give me one car, then i will have twice as many cars
    8·2 answers
  • Can you please help me i’ll give extra points
    6·1 answer
  • Find the third term of (x^2 + 2)^4.
    13·2 answers
  • What type of association (positive, negative, no) is shown between the price of a ticket and concert attendance?
    7·1 answer
  • How to find the radius of a circle when only the area is known?
    6·2 answers
  • Describe the relationship between the number of at bats and the number of hits using the data in the scatter plot.
    8·1 answer
  • How to slove this one?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!