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
Hunter-Best [27]
3 years ago
7

Solve the equation without the use of a calculator. please Help!!! Thank you!!! 12x^3-30x=8-2x^2

Mathematics
1 answer:
Arisa [49]3 years ago
3 0

12x^3 +2x^2-30x = 8
2x( 6x^2 +x -15) = 8
so 2x= 8, x=4
(2x) ( 2x-3) ( 3x+5) = 8
2x-3 = 8
2x= 11
x= 5.5
3x+5=8
3x= 3
x=1
You might be interested in
Recently, your parents read in the newspaper that American factory worker jobs have the lowest income ra
Svetllana [295]

Answer:

A. A factory worker does not need a lot of education.

Step-by-step explanation:

The answer is " A " which is a factory worker does not need a lot of education. since most people don't have a PHD degree or anything higher education, it results in a lot of people joining due to the benefit of the factory worker doesn't need a lot of worker which makes it low in demand too.

5 0
2 years ago
I WILL REPORT IF IT'S A LINK
Anit [1.1K]

Answer:

a) There will be approximately a water depth of 7.5 meters after 3h

b) Approximately 2.5 hours have passed when there is 8 m of water in the tank.

Step-by-step explanation:

a) Look for the y-value when the x-value is 3.

b) Look for the x-value when the y-value is 8.

*The y-axis is the depth (m), and the x-axis is the time (h).

7 0
2 years ago
Which sets of values can be the measures of the exterior angles of a triangle?
romanna [79]
The 3 angles must add up to 360 degrees

Only 1 and 4  fit the bill.
5 0
3 years ago
2(vh)/k=r Solve equation for v in terms of all other variables involved
aivan3 [116]

The equation v in terms of other variables is v = kr/2h

<h3>What is the subject of an equation?</h3>

It is a variable which is expressed in terms of other variables involved in the formula.

Formulas are written so that a single variable, the subject of the formula is on the L.H.S. of the equation. Everything else goes on the right side of the equation. We evaluate the formula by substituting for the literal numbers on the right hand side.

2(vh) / k = r

by cross multiplication

2(vh) = kr

divide both sides by 2h

v = kr/2h

In conclusion, v in terms of other variables is  kr/2h

Learn more about subject of an equation: brainly.com/question/657646

#SPJ1

6 0
1 year ago
Angelo's pet rabbit weighs 1 pound less than twice the weight of Carmen's pet rabbit.Angelo's pet rabbit weighs 9 pounds. Write
attashe74 [19]
W=(9+1)/2 i think? its worded strangely
4 0
3 years ago
Other questions:
  • Help will make right person brainly
    12·2 answers
  • Triangles A and B are similar.<br> If the slope of Y is 4/5 what's the slope of x?
    12·2 answers
  • What is a solution to (x + 6)(x + 2) = 60?
    11·1 answer
  • Write two numbers that multiply to the value on top and add to the value on bottom.
    13·1 answer
  • Cynthia Besch wants to buy a rug for a room that is 29 ft wide and 30 ft long. She wants to leave a uniform strip of floor aroun
    8·1 answer
  • Maggie has a food scale with a digital display that shows the weight as a decimal number. The recipe she is using calls for ingr
    7·1 answer
  • Solve for y
    11·2 answers
  • WILL MARK BRAINLIEST IF ANSWERED FASTLY!!! PLS HELP ME!!
    8·1 answer
  • WILL GIVE BRAINLEAST,,Which of the following is true?
    6·2 answers
  • If f(x)=-5 find the value of x​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!