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
cricket20 [7]
4 years ago
8

Divide 42x3 + 21x2 − 35x by 7x using long division and showing work

Mathematics
1 answer:
Murrr4er [49]4 years ago
4 0
<span>42x^3+21x^2-35x  divided by 7x comes out to

42x^3     21x^2     35x
-------- + --------- - --------
   7x         7x            7x

Reducing these 3 fractions, we get   6x^2 + 3x - 5 (answer)</span>
You might be interested in
Look at the picture as I can’t type the whole thing
bija089 [108]

Answer:

23.1 hours

Step-by-step explanation:

the mean is calculated as

mean = ∑ fx ÷ ∑ f

where x is the midpoint of the time intervals

0 < h ≤ 10 ⇒ x = 5

10 < h ≤ 20 ⇒ x = 15

20 < h ≤ 30 ⇒ x = 25

30 < h ≤ 40 ⇒ x = 35

then

∑ fx = (5 × 5) + (15 × 15) + (50 × 25) + (10 × 35)

       = 25 + 225 + 1250 + 350

       = 1850

∑ f = 5 + 15 + 50 + 10 = 80

then

mean = 1850 ÷ 80 ≈ 23.1 hours (to 1 dp )

8 0
2 years ago
Find the center, vertices, and foci of the ellipse with equation x squared divided by 400 plus y squared divided by 625 = 1
Inessa05 [86]

Answer:

x^2/400 + x^2/625

(x-0)^2/400) +(y-0^2/625)

x^2=400

X=sqrt. 400

x = 20

y^2=625

y = sqrt. 625

y= 25

a^2-c^2=b^2

sqrt 400-625 = c

20-25=c

The correct answer is c=-5

(-5,0)

(5,0)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The bill for dinner was 45.00.You leave a 15% tip.
12345 [234]
You will have paid 51.75 $ and the tip amount is 6.75 (Plz mark me brainliest if you appreciate!)
3 0
3 years ago
Read 2 more answers
Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1 and the given zeros for
timama [110]
The general form of a polynomial is: x² + bx + c = 0. Substituting the roots,

3² + b(3) + c = 0
3b + c = -9 --> eqn 1

(5 + √5)² + (5 +√5)(b) + c = 0
(5+√5)b + c = -30-10√5 --> eqn 2

Solving both equations simultaneously by subtracting eqn 2 from eqn 1,
(-2 - √5)b = 21 + 10√5
b = -8 - √5

Using eqn 1,
3(-8 - √5) + c = -9
-24 - 3√5 + c = -9
c = -9 + 24 + 3√5
c = 15 + 3√5

Hence, the polynomial is: <em>f(x) = x² + (-8 - √5)x + (15 + 3√5)</em>.
7 0
4 years ago
Phone calls cost $7 for 3 minutes how many dollars per minute
Ilya [14]
7/3 divide up 7 dollars into 3 minutes by typing this into a calculator
3 0
3 years ago
Other questions:
  • Write an equation that models the scenario if x represents the number of nights and y represents the total cost of the trip. (th
    8·1 answer
  • (csc x+1)(cscx-1)<br> Please factor and simplify
    9·1 answer
  • How many cubic feet of oil does the drum hold?
    6·1 answer
  • Solve for an equation 6y-20=2y-4
    5·1 answer
  • ∠A and \angle B∠B are supplementary angles. If m\angle A=(3x-17)^{\circ}∠A=(3x−17)
    15·1 answer
  • The parent function of the function g(x) = (x – h)2 + k is f(x) = x2. The vertex of the function g(x) is located at (9, –8). Wha
    14·2 answers
  • 6 + √ 2x + 4 = 14<br><br> ill give brainliest
    9·1 answer
  • Giving brainliest if its right
    8·2 answers
  • An array of 30 LED bulbs is used in an automotive light. The probability that a bulb is defective is 0.001 and defective bulbs o
    5·1 answer
  • Twenty more than four times a number is equal to the difference between 139 and three times the number. Find the number.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!