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
mariarad [96]
3 years ago
15

Describe how to round 3.987 to the nearest 10th

Mathematics
1 answer:
Luden [163]3 years ago
3 0
You look at the tenths place(the number behind the decimal) then you look at the the numbers behind it if the one directly behind it is more than five then you round it up one so like this would be 4.000 because u leave the number in front alone until you have figured the other things out so leave the three alone for right now the look at the nine then look at the eight it is more than five so you round the nine to ten(which would be 4) then turn everything else to zeros so the answer is 4.000 or just 4
You might be interested in
Solve the simultaneous equations by substitution<br> 4x+3y=-2<br> 3y=4-x
stiv31 [10]

Answer: x=-2 y=2

Step-by-step explanation:

I decided that isolating the y value of the second equation is the best way to start solving.

I divide 3 from both sides to get y= (4-x)/3. With this, I can substitute into the first equation. 4x+3(4-x)/3)=-2.

The multiplying the 3 by the denominator three cancels each other out to make:

4x+4-x=-2.

We subtract 4 on both sides and then subtract x from 4x.

We end up with 3x=-6. Then, we divide both sides by 3.

x=-2.

Now we substitute this into the second equation to solve.

3y=4-(-2)

This becomes 3y=4+2 which is 3y=6

We divide both sides by 3 to get y=2

We end up with x=-2 and y=2.

I hope you learned something :)

4 0
3 years ago
Read 2 more answers
Solve the system of linear equations below.
UkoKoshka [18]

Answer:

A

Step-by-step explanation:

6x+3y=33 <=> 2x+y=11<=>4x+2y=22 (1)

4x+y=15 (2)

(1)-(2) <=> y=7

3 0
3 years ago
Write a polynomial f (x) that satisfies the given conditions. Polynomial of lowest degree with zeros of -4 (multiplicity 3), 1 (
yuradex [85]

Answer:

Step-by-step explanation:

Polynomial f(x) has the following conditions: zeros of -4 (multiplicity 3), 1 (multiplicity 1), and with f(0) = 320.

The first part zeros of -4 means (x+4) and multiplicity 3 means (x+4)^3.

The second part zeros of 1 means (x-1) and multiplicity 1 means (x-1).

The third part f(0) = 320 means substituting x=0 into (x+4)^3*(x-1)*k =320

(0+4)^3*(0-1)*k = 320

-64k = 320

k = -5

Combining all three conditions, f(x)

= -5(x+4)^3*(x-1)

= -5(x^3 + 3*4*x^2 + 3*4*4*x + 4^3)(x-1)

= -5(x^4 + 12x^3 + 48x^2 + 64x - x^3 - 12x^2 - 48x - 64)

= -5(x^4 + 11x^3 + 36x^2 + 16x -64)

= -5x^3 -55x^3 - 180x^2 - 80x + 320

8 0
3 years ago
Read 2 more answers
What is m∠2 + m∠3?<br> HELPPPPP!!!!!
Eva8 [605]
I believe the answer is 90
5 0
3 years ago
Read 2 more answers
Which of the following is NOT a recommended way of writing ratios?
Amanda [17]

Answer:

Do not write ratios like so

2-1

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • To convert a temperature for degrees Celsius to degrees Fahrenheit, the temperature in degrees Celsius is multiplied by 1.8, and
    11·1 answer
  • Grandma baked 96 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received 5 fewer cookies than she
    7·2 answers
  • The equation 12x + 15y = 390 represents the total revenue during a one-day fundraiser. In the equation, x represents the number
    6·2 answers
  • Can someone help me with this ?
    11·1 answer
  • Solve. Write the solution in interval notation. -2x&gt;-8 and -5x&lt;20.
    6·1 answer
  • A chord 24 inches long is 5 inches from the center of a circle as shown below what is the radius of the circle to the nearest te
    11·1 answer
  • Multiply 5c^3d(3c^4d^5+5cd^5+3cdg)
    7·1 answer
  • Which model represents the factors of X^2+9x+8
    11·1 answer
  • I guess it's time to post a real question. The attachment below---
    14·1 answer
  • A cell phone provider will allow you to pay for a new phone over time. They require a $50 initial payment and then charge $25 pe
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!