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
neonofarm [45]
3 years ago
14

Subtract. 5x^2-5x+1-(2x^2+9x-6)

Mathematics
1 answer:
Talja [164]3 years ago
4 0
<h2>Hello!</h2>

The answer is:

3x^{2} -14x+7

<h2>Why?</h2>

To solve the problem we need to add/subtract like terms. We need to remember that like terms are the terms that share the same variable and the same exponent.

For example, we have:

x^{2} +2x+3x=x^{2} +(2x+3x)=x^{2}+5x

We have that we were able to add just the terms that were sharing the same variable and exponenr (x for this case).

So, we are given the expression:

5x^2-5x+1-(2x^2+9x-6)=5x^{2}-2x^{2}-5x-9x+1-(-6)\\\\(5x^{2}-2x^{2})+(-5x-9x)+(1-(-6))=3x^{2}-14x+7

Hence, the answer is:

3x^{2} -14x+7

Have a nice day!

You might be interested in
What value of x makes the equation 0.75(x+20)=2+0.5(x−2) true?
aev [14]

Answer:

x= -56..................

7 0
2 years ago
Given: sin ∅= 4/5 and cos x = -5/13 ; evaluate the following expression.<br><br> tan( ∅ - x )
Pavlova-9 [17]

By definition of tangent,

tan(θ - x) = sin(θ - x) / cos(θ - x)

Expand the sine and cosine terms using the angle sum identities,

sin(x ± y) = sin(x) cos(y) ± cos(x) sin(y)

cos(x ± y) = cos(x) cos(y) ∓ sin(x) sin(y)

from which we get

tan(θ - x) = (sin(θ) cos(x) - cos(θ) sin(x)) / (cos(θ) cos(x) + sin(θ) sin(x))

Also recall the Pythagorean identity,

cos²(x) + sin²(x) = 1

from which we have two possible values for each of cos(θ) and sin(x):

cos(θ) = ± √(1 - sin²(θ)) = ± 3/5

sin(x) = ± √(1 - cos²(x)) = ± 12/13

Since there are 2 choices each for cos(θ) and sin(x), we'll have 4 possible values of tan(θ - x) :

• cos(θ) = 3/5, sin(x) = 12/13 :

tan(θ - x) = -56/33

• cos(θ) = -3/5, sin(x) = 12/13 :

tan(θ - x) = 16/63

• cos(θ) = 3/5, sin(x) = -12/13 :

tan(θ - x) = -16/63

• cos(θ) = -3/5, sin(x) = -12/13 :

tan(θ - x) = 56/33

7 0
1 year ago
Read 2 more answers
HELP CANT FIND ANYWHERE ON THE SITE<br> IF RIGHT ANSWER U GET CLOUT AND BRAIN
Maksim231197 [3]

Answer:

B

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Three times the sum of a number and 4 is the same as 18 more than the number. what is the number​
____ [38]

Answer:

three times the sum of a number and 4, if n were to represent the unknown number, is:

3(n + 4)

18 more than a number is:

n + 18

If these two are the same, then they are equal to each other, then:

3(n + 4) = n + 18

*Do the distributive property on the left*

3n + 12 = n + 18

*Combine like terms*

2n = 6

*Divide both sides by 2*

n = 3

The number is 3.

7 0
2 years ago
At Corner Deli, you can get 6 bagels for $6. How much does it cost per 1 bagel?
snow_lady [41]

Answer:

$1.00 per bagel

Step-by-step explanation:

To find the unit rate, you just have to divide the number of bagels by how much they cost.

In your problem, the number of bagels is 6 and the price is also 6.

Now all you have to do is divide 6 by 6 and the answer to that is 1.

Example: 6 ÷ 6 = 1

4 0
3 years ago
Other questions:
  • Consider that lines a and b are parallel. Which alternate exterior angle equals 62°
    8·1 answer
  • 2 2/5% in a fraction in simplest form
    8·1 answer
  • Juanita wrote 3x 47 doing times40+3×7 what problem did you used to rewrite the expression
    13·1 answer
  • Use a strategy to solve this problem. (Note: I seriously need help and this is due on Sunday!!)
    10·1 answer
  • Michael Rice’s bike at a constant speed of 12 mph how far can he travel in two hours
    14·2 answers
  • Allison used 2.5 half cups of flour to make a cake, and 3 over 4of a cup of flour to make a pie. If she started with 4 cups of f
    13·1 answer
  • 73 lb 9 oz − 38 lb 14 oz= ?
    15·1 answer
  • Find the value of x in the isosceles triangle shown below.<br> 2<br> 2<br> 5<br> 8
    7·1 answer
  • What’s 6.5 inches times 4?
    6·2 answers
  • This year Heather watched 20 movies. She thought that 9 of them were very good. Of the movies she watched, what percentage did s
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!