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
Mariulka [41]
3 years ago
13

(2x^2+7x-4)+(-10x-4)​

Mathematics
1 answer:
arsen [322]3 years ago
3 0

Answer:

2x^{2} -3x-8

Step-by-step explanation:

Combine like terms: \\7x+(-10x)=-3x\\-4+(-4)= -8 \\Write in standard form:\\2x^{2} -3x-8

You might be interested in
the ages of three siblings are all consecutive integers the sum of their ages is 39 how old is the youngest sibling variable equ
Verdich [7]

Answer:

Step-by-step explanation:

Let x = the age of the youngest child

Let x + 1 = the age of the middle child

Let x + 2 = the age of the oldest child

x + x + 1 + x + 2 = 39

3x + 3 = 39

3x = 36

x = 12 years

8 0
2 years ago
Type a digit that makes this statement true.<br><br> 17,421,55<br> is divisible by 6.
Anettt [7]

Answer:

<h2>290359.166667</h2>

Step-by-step explanation:

17,421,55/6=290359.166667

8 0
2 years ago
Read 2 more answers
How do I solve the equation in an interval from 0 to 2π ? 9 cos 2t = 6​
Ivahew [28]

9\cos(2t)=6\implies\cos(2t)=\dfrac23

Using the fact that cos is 2π-periodic, we have

\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi

That is, \cos(\theta+2n\pi)=\cos\theta for any \theta and integer n.

\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi

We get 2 solutions in the interval [0, 2π] for n=0 and n=1,

t=\dfrac12\cos^{-1}\left(\dfrac23\right)\text{ and }t=\dfrac12\cos^{-1}\left(\dfrac23\right)+\pi

4 0
2 years ago
Kenny's weight is 6/7 times melvin's weight. what is the ratio of melvin's weight to the total weight of the two boys?
dangina [55]
Answer=7:13

Kenny's Weight*6/7=Melvin's Weight

So, for example, if Melvin's weigh was 7...

Kenny's Weight*6/7=7
divide both sides by 6/7
Kenny Weight=6

So we can say that Melvin's weight to Kenny's weight is 7:6

The boys total weights would be...
7+6=13


So Melvin's weight over the total weight of the two boys is:

7:13
4 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST!!
sergeinik [125]

Answer: 5.196152423

Step-by-step explanation: Logically considering it's a Rhombus all the sides are equal to each other. So you just need to find the area. In this case you find the area by multiplying the sin of the given angle by the square root of the given side. So, 6²×sin (60)=6²×√3/2=31.17691454. After finding the area you then have to divide the area by it's base to find the height. So, 31.17691454 ÷ 6 = 5.196152423.

I didn't round any of the numbers. Hopefully this is correct.

Sorry about the messy diagrams (never been good at creating them) and how long it took.

4 0
2 years ago
Read 2 more answers
Other questions:
  • The moon is about 240,000 miles from earth what is the distance written as a whole number multiplied by the power of 10
    15·2 answers
  • The value of the 5 in the ones place in the number 5,555 is how many times as much as the value of the 5 in the hundred place?
    12·1 answer
  • Given f(x)=4x^3-3x^2+10 use the remainder theorem to find f(-2)
    15·1 answer
  • How many triangles can be constructed with three sides measuring 11 meters,16 meters,and 26 meters?
    6·1 answer
  • If $350 is placed in a savings account that earns 3.5% interest applied once a year, and how much would a savings account be wor
    12·1 answer
  • HELP ME IF YOU ARE Not Sure don't answer please show steps and work
    15·1 answer
  • Ms. Sherman bought a 4 pound bag of candy for her 6th grade classroom. She gave away 2 pounds of candy to her students during th
    5·2 answers
  • Please! Quick, how may days are in between 12/1/16 and 7/20/20???
    15·2 answers
  • The volume of a fish tank is 70 cubic feet. If the density is 0.4 fish over feet cubed, how many fish are in the tank?
    13·2 answers
  • if (2,3) bisects the line segment joining the points (a,6) and (8,b),then what are the values of a and b​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!